The i-7540D CAN-Ethernet Gateway
User’s Manual
Warranty
All products manufactured by ICP DAS are under warranty
regarding defective materials for a period of one year from the date of
delivery to the original purchaser.
Warning
ICP DAS assumes no liability for damages resulting from the use
of this product. ICP DAS reserves the right to change this manual at
any time without notice. The information furnished by ICP DAS is
believed to be accurate and reliable. However, no responsibility is
assumed by ICP DAS for its use, or for any infringements of patents or
other rights of third parties resulting from its use.
Copyright
Copyright 2005 by ICP DAS. All rights are reserved.
Trademark
The names used for identification only may be registered
trademarks of their respective companies.
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99#P01.............................................................................................................. 67
99#P02.............................................................................................................. 69
4.10 99#P1................................................................................................................ 71
4.11 99#P1B ............................................................................................................. 73
4.12 99$P0105BBDSP ............................................................................................. 75
4.13 99$P0205BBDSP ............................................................................................. 77
4.14 99$P114PBCC…MM…ET ............................................................................ 79
4.15 99$P1B04TTRR .............................................................................................. 81
4.16 99#PWID.......................................................................................................... 82
4.17 99#PWPW........................................................................................................ 83
4.18 99$PWIDLLxxxxx… ...................................................................................... 84
4.19 99$PWPWLLxxxxx… .................................................................................... 85
4.20 99#PPC............................................................................................................. 86
4.21 99#PPIP............................................................................................................ 87
4.22 99$PPCLLABC............................................................................................... 88
4.23 99$PPIPxxx….................................................................................................. 89
Overview.......................................................................................................... 91
Diagnostics..................................................................................................... 109
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1. Introduction
“Embedded Internet” and “Embedded Ethernet” are hot topics today.
Nowadays the Ethernet protocol becomes the de-facto standard for local area
network. Via Internet, connectivity is occurring everywhere, from home appliances
to vending machines to testing equipment to UPS…etc. Using Ethernet for
network in industrial area is appealing because the required cabling is already
installed. The i-7540D from ICP DAS is a solution that enables CAN networks to
be coupled together over the Internet/Ethernet, whereby remote monitoring and
control is possible. The i-7540D controls networked communication and makes a
transparent CAN-based application interface available to the user.
The device supports a transparent, protocol-independent transfer of the CAN
messages, thus allowing its implementation into a wide range of possible
applications. Furthermore, the i-7540D can be used with various higher layer CAN
protocols (e.g. CANopen, DeviceNet or other proprietary protocols). The following
figure shows the application architecture for the i-7540D.
Figure 1-1: Application of i-7540D
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The main features and specification of this are described as below:
1.1
Features
z
z
z
z
z
z
z
z
RDC 80186-80 Embedded CPU, or compatible
Ethernet Protocol, TCP,UDP, IP, ICMP, ARP, HTTP
Reloadable Operating Software
Remote Configuration
Data transmitted by using TCP protocol
Diagnostics
COM driver support interrupt & 1K QUEUE Input & Output buffer
10/100 Base-TX Ethernet Controller
(Auto-negotiating, Auto_MDIX, LED indicator)
Support one RS-232 port, one RS-485 port and one CAN port
2500Vrms photo-isolation protection on CAN side.
Jumper select 120Ω terminator resistor for CAN channel
Phillip 82C250/251CAN Transceiver
z
z
z
z
z
z
Support both CAN specification 2.0A and 2.0B.
Max transmission speed up to 1M bps for CAN and 115.2K bps for RS-232 &
RS-485
z
z
z
z
z
z
z
Max transmission distance of CAN over 1000m (follow CAN specification)
Built-in self-tuner ASIC controller on RS-485 port
7-segment LED display.
Software configurable CAN and Ethernet communication parameters
Program download port: COM1 or Ethernet Port
Support CAN bus pair connection
Provide the transparent communication between the CAN devices via
Ethernet network.
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1.2
Specifications
CPU
CPU
80186, 80MHz or compatible
SRAM
Flash
512K Bytes
512K Bytes
EEPROM
NVRAM
16K Bytes
31 Bytes (battery backup, data valid up to 10 year)
RTC (Real Time Clock)
Yes
Yes
Yes
64-bit Hardware Serial Number
Build-in Watchdog Timer
Communication Interface
COM1
COM2
RS-232 (TXD, RXD, RTS, CTS, GND)
RS-485 (D2+, D2-)
One CAN port with two CAN bus connector interfaces
(CAN_H, CAN_L)
CAN
10/100 Base-TX Ethernet Controller
(Auto-negotiating, Auto_MDIX, LED indicator)
Ethernet Port
COM Port Formats
Data bit
7, 8
Parity
Even, Odd, None
1
Stop bit
Baud-rate
115.2Kbps max.
CAN Port Formats
CAN Controller
CAN Transceiver
Isolated
Phillip SJA1000T CAN Controller
Phillip 82C250 CAN Transceiver
2500Vrms on CAN side
1Mbps max.
Baud-rate
Dimensions
i-7540D
123 x 72 x 33 mm
Operating Environment
Operating Temperature
Storage Temperature
-25°C to +75°C
-40°C to +80°C
Power
Protection
Power reverse polarity protection
Frame Ground for ESD Protection
Required Supply Voltage
Power consumption
Yes
+10 to +30VDC (non-regulated)
2.5W
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i-7540D Software Utility tool:
z
z
z
z
z
z
z
z
CAN bus Baud Rate configuration;
CAN acceptance filter configuration;
CAN 2.0A or 2.0B specific selection;
Setting the IP, Gateway and Mask of the network status;
Setting the Web ID and password
RS-232/RS-485 baud rate and data bit setting;
CAN bus pair connection parameters configuration.
Provides a quick testing function for transmitting/receiving CAN messages;
Application:
z
z
z
z
z
z
Factory Automation;
Building Automation;
Home Automation;
Control system;
Monitor system;
Vehicle Automation;
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1.3
VxComm Technology
The i-7540D is designed as a RS-232/RS-485/CAN to Ethernet Gateway. So it
follows that they can be used to link these RS-232/RS-485/CAN devices to central
computer as follows:
Figure 1-2: Application of i-7540D
Compared to the RS-485 network, these Ethernet network hubs are already in
existence for system network. Therefore, the RS-232 devices can find the closest
hub and link to the central computer with the help of the i-7540D. The Ethernet
network is extremely popular and already existing for most applications, hence,
this approach is a very successful. In general, it is more difficult to write a TCP/IP
program than a COM 1/2 program. Therefore, the VxComm technology is
developed to simulate COM-ports of the i-7540D to become COM 3/4/5…/256
of the central computer. Then users can write a COM port program to link these
RS-232/RS-485/CAN devices and need not to concern themselves with any
TCP/IP problem.
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In some factories, there are old systems still running and in case. These old
systems only support COM port applications. Therefore, the Vxcomm technology
can be used to upgrade these old systems to support Ethernet network.
To recap, the VxComm technology is useful as follows:
z
z
Provides a much easier interface for software programmers.
Keeps the old systems going without program modification
The block diagram of VxComm technology for the i-7540D is given as follows:
The VxComm technology can be used to simulate COM/CAN ports of the i-7540D
to become a COM port of PC. With the help of VxComm driver, users can access
the remote COM/CAN ports of the i-7540D just as them would access the PC’s
COM port.
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2. Hardware
2.1
Block Diagram
Figure 2-1 is a block diagram illustrating the functions on the i-7540D module. It
provides the 2500Vrms Isolation in the CAN interface site. And hardware media in
RS-232 interface is only adopted 5-wire connection.
Figure 2-1: Block diagram of i-7540D
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2.2
Pin Assignment
CAN Bus
Connector
Bypass CAN
Bus Connector
CAN Bus
Power LED
Status LED
7-segment
LED displays
Power Input
Ethernet 10/100
Base T
RS-485 Port
INIT * pin
RS-232 Port
Figure 2-2: Pin assignment on the i-7540D
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2.2.1 RS-232 & RS-485 & Power supply Interface
The I-7540D provides one RS-232 interface and one RS-485 interface with
hardware flow control. The GND-signal of COM1 is shared with pin-9, GND. The pin
assignment is shown in table 2-1.
Table 2-1: COM Connector Pin Assignment
Pin
1
Name
CTS1
RTS1
RXD1
TXD1
Description
CTS pin of COM1 (RS-232)
RTS pin of COM1 (RS-232)
2
3
RXD pin of COM1 (RS-232)
TXD pin of COM1 (RS-232)
Initial pin for enable/disable
AUTOEXEC.BAT
4
5
INIT*
6
7
D2+
D2-
Data+ pin of COM2 (RS-485)
Data- pin of COM2 (RS-485)
V+ of power supply
8
9
VS+
(+10V to +30V DC unregulated)
GND of power supply
GND
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2.2.2 Connect to CAN Bus
In order to provide an easy CAN bus wiring, the i-7540D supplies one CAN
port with two CAN bus connector interfaces. Each connecter built on the i-7540D
looks like as figure 2-3 and table 2-2.
Table 2-2: CAN bus Connector Pin Assignment
Pin No.
Signal
N/A
Description
Not Connected
1
2
3
4
5
CAN_L
N/A
CAN_L bus line (dominant low)
Not Connected
CAN_H
N/A
CAN_H bus line (dominant high)
Not Connected
Note that the bypass CAN bus connector is not another CAN channel. It is
designed for connecting to another CAN device conveniently. The structure of the
inside electronic circuit is displayed as figure 2-4.
Figure 2-3 Electronic circuit of CAN bus connector
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2.2.3 Ethernet Connect
The Ethernet (10/100 Base-TX) signals are routed to an RJ45 socket for easy
connection using a standard CAT 3 or CAT 5 network cable. On power on of the
i-7540D, it will auto-negotiate the network speed and connection.
Table 2-3: Ethernet Connector Pin Assignment
Pin
1
Name
TX+
TX-
Description
Transmit Data +
Transmit Data -
Receive Data +
Not Connected
Not Connected
Receive Data -
Not Connected
Not Connected
2
3
RX+
N.C.
N.C.
RX-
4
5
6
7
N.C.
N.C.
8
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2.3
Terminator resistor settings
In order to minimize reflection effects on the CAN bus line, the CAN bus lines
have to be terminated at both ends by two terminal resistances. Based on the ISO
11898-2 spec, each terminal resistance is 120Ω (or between 108Ω~132Ω). The
length related resistance should have 70 mΩ/m. Users should check the
resistances of their CAN bus, before they install a new CAN network as figure 2-4.
Figure 2-4: Terminator resistor
Moreover, to minimize the voltage drop on long distance, the terminal
resistance should be higher than the value defined in the ISO 11898-2. Table 2-4
may be used as a reference.
Table 2-4: Relation between bus cable and length
Bus Cable Parameters
Bus
Terminal
Resistance
(Ω)
Length Related
Resistance
(mΩ/m)
Length
(meter)
Cross Section
(Type)
0.25(23AWG)~
0.34mm2(22AWG)
0.34(22AWG)~
0.6mm2(20AWG)
0.5~0.6mm2
0~40
70
124 (0.1%)
127 (0.1%)
150~300
40~300
300~600
600~1K
< 60
< 40
< 20
(20AWG)
0.75~0.8mm2
150~300
(18AWG)
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Therefore, the i-7540D module supplies a jumper for users to connect the
terminator resistor or not. If users want to use this terminator resistor, please open
the i-7540D cover and use the JP3 jumper to activate the 120Ω terminator
resistor built in the system, as in the figure 2-5. Note that the default setting is
active. And about the J3 jumper setting, please refer the table 2-5.
Figure2-5
XC100 I/O expansion board LAYOUT
Table 2-5 J3 Jumper Selection
Apply the termination
Don’t apply the termination
resistor
resistor(120Ω)
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2.4
LED Indication
The i-7540D provides the Converter function between the Ethernet port and
the RS-232 & RS485 & CAN port. It can handle both 11-bits and 29-bits ID format
according to whether it is a CAN 2.0A or 2.0B. It also provides some LEDs to
indicate to users what situation the i-7540D is in.
2.4.1 Power LED
There is a red indicator-LED in the i-7540D as follow:
— Firmware is running: flashing red
The default shipping of i-7540D will be firmware inside, so the red
indicator-LED of i-7540D will be ON 0.5 second then OFF 0.5 second periodically.
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2.4.2 CAN bus indicator LED
The i-7540D includes three single-color LED displays to indicate the status of
module, network and I/O device. They are ER LED (it is red), TX LED (it is green),
and RX LED (it is red). The Indicators assist maintenance personnel in quickly
identifying a problem unit. The LED test is to be performed at power–up. When
the CAN communication events occur, these indicators will be triggered to glitter
with different conditions.
z
ER LED
This LED provides device status and indicates whether or not the device is
operating properly. Table 2-6 shows the conditions of ER status. Therefore, when
the device is operated normally, the ER-LED must be turned off. If this led flashing
red, users can use the “99S” command, in section 4.5, to read the status of the
i-7540D.
Table 2-6 ER-LED conditions
Condition
Off
Description
Device is normal; no error occurs
Device has unrecoverable fault
Red
Flashing red Device has recoverable fault.
To recover:
Reset device or perform error recovery
z
TX LED
This LED indicates the status of message transmitted. Table 2-7 shows the
conditions of TX status. Therefore, when the device transmits messages to the
CAN bus, the TX-LED is normally flashing green.
Table 2-7 TX led conditions
Condition
Description
Off
No data is being transmitted to the CAN side
Flashing green Data are transmitting to the CAN side
Solid green Transmit data error
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z
RX LED
This LED indicates the status of message received. Table 2-8 shows the
conditions for RX status. Therefore, when the device receives CAN messages,
the RX-LED would be flashed.
Table 2-8 RX led conditions
Condition
Description
Off
No data is being received
Flashing red Data is being received
Solid red Receive error messages
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2.4.3 5-digits 7-Segment LED Displays
The 5-digits 7-SEG LED will show as figure 2-6.
Figure 2-6 7-SEG LED Displays
The important information of i-7540D can be divided as follows:
z
z
z
z
Group-ID 11111: IP information of this i-7540D
Group-ID 22222: baud rate of all ports
Group-ID 33333: configuration of all ports
Group-ID 44444: CAN bus pair connection information and client-connected
information of this i-7540D
The IP information format of i-7540D is given as follows:
z
z
Group-ID of 5-digit LED: 11111.
LED-1: indicator, can be 1 or 2 or 3 or 4
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z
LED-2~5: IP
The LED will show Group-ID first, and then show its IP as the above diagram
indicates. If users change IP, the value shown will change immediately. The
default shipping IP = 192.168.255.1 Î the LED-show sequence is given as above
diagram.
The DHCP function formats are given as follows:
z
z
z
dHCP.0 Î DHCP function disable
dHCP.1 Î DHCP function enable and get an IP
dHCP.2 Î DHCP function enable but not get an IP, using default setting
If the DHCP function is enable, the i-7540D will get it’s IP from the DHCP
server. Otherwise, it will use the IP in the EEPROM.
The baud-rate format of COM ports are given as follows:
z
z
z
Group-ID of 5-digit LED: 22222.
LED-1: COM port number
LED-2~5: value of (baud/100)
The baud-rate format of CAN port is given as follows:
z
z
LED-1: CAN port number
LED-2~5: value of (baud/1000)
The COM port and CAN port number are shown in LED-1 and their baud rate
is shown in the LED-2~5. The COM port baud rate = (value of LED-2~5)*100.
Therefore, shown-value=1. 96 means baud rate of COM1=9600BPS;
shown-value= 2.1152 means baud rate of COM2= 115200 BPS. It’s the same as
the CAN port baud rate. The CAN port baud rate = (value of LED-2~5)*1000.
Therefore, shown-value=3. 10 means baud rate of CAN=10KBPS; shown-value=
3.1000 means baud rate of CAN= 1MBPS. All baud rate of i-7540D’s port will be
shown one by one.
The configuration of COM ports are given as follows:
z
z
z
z
z
Group-ID of 5-digit LED: 33333.
LED-1: COM port number
LED-3: data bit, 7 or 8
LED-4: parity bit, 0=no parity, 1=even parity, 2=odd parity
LED-5: stop bit, 1 or 2
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The configuration of CAN port is given as follows:
z
z
LED-1: CAN port number
LED-2~5: CAN specification (2.0A or 2.0B)
The connection-client and CAN bus pair connection information are given as
follows:
z
z
Group-ID of 5-digit LED: 44444.
LED-1: indicator, can be 0 or 1 or 2 or 3 or 4 or 5.
Indicator 0:
z
z
z
z
LED-2: ‘P’ for CAN bus pair connection
LED-3: “Enable CAN pair” parameter, 0: Enable, 1: Disable
LED-4: “TCP or UDP” parameter, 0: TCP, 1: UDP.
LED-5: “Server or Client” parameter, 0: act as a server, 1: act as a client
Indicator 1 or 2 or 3 or 4:
The CAN bus pair destination IP information format of i-7540D is given as follows:
z
LED-2~5: IP
The LED will show Group-ID first, and then show its IP as the above diagram
indicates. If users change can bus pair destination IP and reset the system, the
value shown will change. The default shipping IP = 192.168.255.2 Î the
LED-show sequence is given as above diagram.
Indicator 5:
z
z
LED-2/3: numbers of free sockets are available, default 24.
LED-4/5: numbers of sockets are used by clients, default 0.
If any one client connects to this i-7540D, free-sockets will be decreased and
used-sockets will be increased. If the free-sockets number is reduced to 0, then
no extra client can link to this i-7540D. The default number of free-sockets is 24.
Therefore, the i-7540D allows 24 clients link to it.
Indicator 6:
z
z
LED-2~4: “Con.” for connect to server or not
LED-5: 0: not connect to server; 1: already connect to server.
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3. Software Utilities
We support some software utilities for users to set and test the status of the
i-7540D.
1. i-7540D Utility
The i-7540D Utility tool can be used to configure the operation condition
between the CAN and Ethernet communications. Also it can be used to
transmit or receive a CAN message for simple testing of the module’s
functions.
2. MiniOS7 Utility
MiniOS7 Utility is a tool for configuring, uploading files to all products
embedded with ICPDAS MiniOS7
3. VxComm Utility
Using the Virtual COM application, one PC can control 256 COM ports
(including real COM ports). The i-7540D will become a RS-232/RS-485/CAN
to Ethernet/Internet converter.
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3.1
i-7540D Utility
The i-7540D Utility tool can be used to configure the operation condition
between the CAN and Ethernet communications. Also it can be used to transmit
or receive a CAN message for simple testing of the module’s functions. To start
the “i-7540D Utility”, please install the i-7540D Utility setup file and run the
i-7540D.exe file. The screenshot of the startup screen for this Utility is given in the
below figure. Connect the i-7540D’s Ethernet port with the PC’s Ethernet port via
a standard CAT 3 or CAT 5 network cable. Then the user can connect the CAN
interface into the CAN network based on the CAN specifications. For further
information related to this, please refer to section 2.2.2 and 2.2.3 of this manual
on how to make a hardware connection.
Network status
CAN
parameters
CAN pair
connection
parameters
COM status
Figure 3-1: i-7540D Utility
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3.1.1 Install & uninstall the i-7540D Utility
Install i-7540D Utility
Step1: Download the i-7540D Utility setup file from the web site
CD-ROM disk following the path of “Fieldbus_CD:\\CAN\
Converter\i-7540D\Utility
Step 2: Execute the setup.exe file to install i-7540D Utility.
Step 3: A “Welcome” window pops up to prompt user to begin the installation.
See figure 3-2.
Figure 3-2: Welcome dialog
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Step 4: Click the “Next” button and a “Choose Destination Location” window will
pop up for deciding the installation path.
Figure 3-3: “Choose Destination Location” dialog
Step 5: Click “Next” button and a “Ready to Install the Program” window will pop
up to prompt user that the wizard is ready to begin the installation See
figure 3-4.
Figure 3-4: “Ready to Install the Program” dialog
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Step 6: Click “Install” button and start to install the i-7540D Utility to the system.
After finishing the process, a “Complete” window will pop up to prompt
users that the successful completion of the installation. And click “Finish”
button to exit. See figure 3-5.
Figure 3-5: “Successful Completion of the Installation” dialog
Step 7: After finishing the installation of the i-7540D Utility, users can find it as
shown in figure 3-6.
Figure 3-6: You can find “i-7540D Utility“ at the “Start” in the task bar
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Uninstall i-7540D Utility
You can uninstall i-7540D Utility software by the following means described
below:
Step 1: Click “Start” in the task bar, then click the “Control Panel” as shown in
figure 3-7.
Figure 3-7: Select settings
Step 2: Click the “Add or Remove Programs” button icon to open the dialog. See
figure 3-8.
Figure 3-8: “Add/Remove Programs”
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Step 3: Find out the i-7540D Utility, and click the Change/Remove button.
See figure 3-9.
Figure 3-9: Click “Add/Remove Programs”
Step 4: Select the “Remove” option button, and press the “Next” button to
remove i-7540D Utility. See figure 3-10.
Figure 3-10: “Modify, repair, or remove the program” dialog
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Step 5: Click the button “Yes” to remove the software as shown in figure 3-11.
Figure 3-11: Click the button “Yes” to remove the software
Step 6: Finally, click the “Finish” button to finish the uninstall process.
Figure 3-12: “Maintenance Complete” dialog.
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3.1.2 How to configure the module parameters
The following procedure will guide you on how to configure the
communication parameters for the CAN and Ethernet interface. The configuration
steps are depicted as below:
1. Connect the power source (the 10~30 DC volts) into the i-7540D module.
2. The i-7540D module’s Power LED will flash approximately once per second.
And the 5-digits 7-segment LED will scroll to display some messages, please
refer to section 2.4.3. That means the i-7540D module is working normally.
3. The user must run the i-7540D’s Utility software after they have made a wire
connection between the PC and the i-7540D via the network cable
4. Click the “Connect” icon on the i-7540D Utility tool bar. The setting frame will be
popped up. Key-in the IP of the i-7540D and press the “Connect” button in
order to connect with it. As shown in the following figure.
①
②
③
Figure 3-13: i-7540D’s IP setting
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5. Then the i-7540D configuration window will be brought out. The i-7540D Utility
will show the communication information from the i-7540D module in the
window, as shown in the following figure.
i-7540D’s
CAN Status
Error code
Response or not
Time-Stamp value
response or not
Figure 3-14: Connect to the configuration mode of the i-7540D
6. Choose the “Settings” tab to open the configuration window for the CAN and
the Network status parameters of the i-7540D. Once users have finished
changing the CAN parameter settings, please click the “Setting” button, on the
“CAN Parameters” frame, to store the communication parameters into the
EEPROM on the i-7540D.
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Note: If users click the “Defaults” icon, all of the CAN communication
parameters in the i-7540D will be set to the default values, which are:
CAN Specification = 2.0B
CAN bus Baud rate = 1Mbps
BTR0 = 00 BTR1 = 00
Acceptance Code= 00 00 00 00
Acceptance Mask= FF FF FF FF
Error Response = No
Timestamp Response = No
7. The “Network Status” frame displayed the IP, Gateway, Mask and MAC
address of the i-7540D. Users can change these network parameters by click
the “Set” button and “Modify IP” button. And the “Reset System” checkbox is
used to reset the system of i-7540D.
Note: After modify the network status of the i-7540D, the setting value will
become effective after resetting the system.
8. The “COM Status” frame showed the parameters of RS-232 and RS485 ports.
User also can modify it by click the “Set” button.
9. The “CAN Bus Pair Connection Status” frame showed the parameters of CAN
pair connection.
Note: After modify the CAN bus pair connection status of the i-7540D, the setting
value will become effective after resetting the system.
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IP/Gateway/Mask/
Web ID/Password
CAN Pair
Status
RS-232/RS485
Figure 3-15: Network status, COM status and CAN pair status
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3.1.3 How to set the Bus Timing Registers
BTR0, BTR1: Set the special user-defined baud rate.
Users can set arbitrary baud with these parameters. But users need to have the
background of SJA1000 CAN controller and 82C251 CAN transceiver, and
calculate the values of BT0 and BT1 by themselves (The clock frequency of CAN
controller is 16MHz.).
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3.1.4 How to set the Acceptance Code and Mask
Acceptance Code (AC): The CAN ID bits that you want to get.
Acceptance Mask (AM): The CAN ID bits that you want to filter.
In the acceptance code, the bit value ‘1’ means that you want to get this CAN ID
bit. And in the acceptance mask, the bit value ‘0‘ means that you want to filter this
CAN ID bit.
For 11-bit ID Message:
Register
bits of register
bit7~bit0
bit7~bit5
bit4
Filter Target
bit10 ~ bit3 of ID
bit2 ~ bit0 of ID
RTR
AccCode[0] and AccMask[0]
AccCode[1] and AccMask[1]
AccCode[1] and AccMask[1]
AccCode[1] and AccMask[1]
AccCode[2] and AccMask[2]
AccCode[3] and AccMask[3]
bit3~bit0
bit7~bit0
bit7~bit0
no use
bit7 ~ bit0 of 1st byte data
bit7 ~ bit0 of 2nd byte data
For 29-bit ID Message:
Register
bits of register
bit7~bit0
bit7~bit0
bit7~bit0
bit7~bit3
bit2
Filter Target
bit28 ~ bit21 of ID
bit20 ~ bit13 of ID
bit12 ~ bit5 of ID
bit4 ~ bit0 of ID
RTR
AccCode[0] and AccMask[0]
AccCode[1] and AccMask[1]
AccCode[2] and AccMask[2]
AccCode[3] and AccMask[3]
AccCode[3] and AccMask[3]
AccCode[3] and AccMask[3]
bit1~bit0
no use
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Note:
1. AccCode[0] means the most significant byte of AccCode and
AccCode[3] means the least significant byte of AccCode.
2. AccMask[0] means the most significant byte of AccMask and
AccMask[3] means the least significant byte of AccMask.
3. Bit10 is most significant bit and Bit0 is least significant bit.
For example (In 29 bit ID message):
AccCode: 00h 00h 00h
AccMask: 00h 00h 00h
A0h
1Fh
ID Value : ??
??
??
Ah and Bh will be accepted. (??: don't care)
(Note: The mark “h” behind the value means hex format.)
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3.1.5 Enable Error Response
Figure 3-16: Error Response
When the i-7540D receives a command that it doesn’t accept, it will response
syntax and/or communication error information to the host. These general error
codes are shown in below table.
AsciiToHex
Description
(Error code)
1
2
3
4
5
The head character of the command string is invalid.
The length of the command string is invalid.
The value of CAN identifier is invalid.
The value of CAN data length is invalid.
Reserved
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3.1.6 Enable Time-stamp Response
Figure 3-17: Time-Stamp Response
When the time-stamp response is enabled, the i-7540D will send CAN message
with it’s time-tick vale, hexadecimal eight ASCII chars for a unit of microsecond, to
the host as it receive a CAN message. For example:
Receive the first
CAN message at
33B7AA17h us
Receive the second
CAN message at
33E054EBh us
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3.1.7 How to change web ID/PASSWORD configuration
The i-7540D module has a built-in web server that allows user to easily configure
the module from a remote location using a regular web browser.
When users want to modify the configuration of i-7540D via Setup web page, they
need to fill these two fields, ID and PASSWORD, with correct values. Or they can
view the configuration of i-7540D, and can’t modify the configuration.
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If users want to change the ID and PASSWORD, they need to modify these two
parameters by using Utility tool. The default setting of ID is “7540D”, and default
PASSWORD is “icpdas7540D”.
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3.1.8 How to test the module transmission performance
The following procedure will guide you to learning how to transmit/receive CAN
messages to/from other devices/PCs by using the i-7540D converter.
1. Connect the i-7540D’s CAN port into the CAN network, which must at least
have one CAN device on the network.
2. Supply the 10~30 volts DC source into the i-7540D module through the power
terminal.
3. The i-7540D module’s Power LED will flash approximately once per second.
And the 5-digits 7-segment LED will scroll to display some messages. That
means the i-7540D is working in the operation mode.
4. Run the i-7540D Utility software after they have made a wire connection
between the PC and the i-7540D via the network cable
5. Click the “Connect” icon on the i-7540D Utility tool bar. The setting frame will be
popped up. Key-in the IP of the i-7540D and press the “Connect” button in
order to connect with it. As shown in the following figure.
①
②
③
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6. Select the “Test” tab in order to test the function of transmission and reception
via the i-7540D module. In “Send CAN Message” frame, user can send the
necessary CAN message to Ethernet port 10003 of 7540D. Then 7540D will
transfer and transmit this message to CAN bus. In the “Send Command to
7540D” frame, users can send command to 7540D for getting or setting the
status or parameters of 7540D.
Timer mode to send
CAN message
Used to send
CAN message
Received CAN
message
Used to Send
Command to 7540D
Figure 3-18: Send and receive CAN messages
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7. Users also can use the timer mode to send CAN message in fixed period. And
the start/stop time would be displayed in Date/Time format. And when
receiving correct CAN message, these CAN message will be displayed on the
“Receive” box.
Start/stop time of
timer mode
Fixed period to
send CAN message
Figure 3-19: Timer mode to send CAN message
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3.1.9 How to use CAN Bus Pair Connection
The firmware v1.06 or later and Utility v1.04 or later support CAN bus pair
connection UDP/TCP function. User can refer the following application to use this
function.
Note:
After setting “Enable CAN Bus Pair Connection”, all data send to this i-7540D
via Ethernet port 10003 will become no effective. And the VxComm port of
7540D’s COM3(CAN port) will become no effective.
CAN Pair
Status
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Application 01: one-to-one communication
CAN Bus Pair Connection by using UDP method (port: 57540).
After setting “CAN Bus Pair connection Status” of the two i-7540D and re-start the
system of them, CAN messages between “CAN Network 01” and “CAN Network
02” can be exchanged by UDP/IP protocol through Ethernet network.
Note:
When setting to use UDP method, the “Server/Client” parameters will be no
effective.
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Application 02: one-to-many communication (broadcast)
CAN Bus Pair Connection by using UDP method (port: 57540).
1. After setting “CAN Bus Pair connection Status” of these i-7540D and re-start
the system of them, CAN messages on “CAN Network 01” will be sent to “CAN
Network 02“ and “CAN Network 03“ by using UDP/IP protocol via Ethernet
network.
2. All CAN message on “CAN Network 02“ will sent to “CAN Network 01“ by
using UDP/IP protocol via Ethernet network.
3. All CAN message on “CAN Network 03“ will sent to “CAN Network 01“by using
UDP/IP protocol via Ethernet network.
4. By using this broadcast method, users need to know how to set the network
mask of the i-7540D.
Note:
When setting to use UDP method, the “Server/Client” parameters will be no
effective.
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Application 03: One acts as a server, the other acts as a client.
CAN Bus Pair Connection by using TCP method (port: 10003).
After setting “CAN Bus Pair connection Status” of the two i-7540D and re-start the
system of them, CAN messages between CAN Network 01 and CAN Network 02
can be exchanged by TCP/IP protocol through Ethernet network.
Note:
When setting to act as a TCP server, the “Connect to (Destination IP)” will be
no effective.
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3.2
MiniOS7 Utility
MiniOS7 Utility is a tool for configuring, uploading files to all products embedded
with ICPDAS MiniOS7. And it provides some PC diagnostic tools which can help
users to diagnose the status of the i-7540D and other controllers.
Supported connection ways
z
z
COM Port Connection
Ethernet UDP & TCP Connection
Maintenance
z
z
z
Upload file(s)
Update MiniOS7 image
Delete file(s)
Configure
z
z
z
Date & Time
IP Address
COM port
Check
Product information
z
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3.2.1 Install the MiniOS7 Utility
Step 1: The installation software can be obtained from the following location.
8000cd:\\Napdos\MiniOS7\utility\MiniOS7_utility\ or
http://ftp.icpdas.com/pub/cd/8000cd/napdos/minios7/utility/minios7_utility/
Step 2: Go to where you downloaded the file, and double-click on the installation
file in Windows to execute it.
Step 3: To finish the installation of the MiniOS7 Utility, click the Finish button to
exit the setup process.
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3.2.2 PC Diagnostic tools
The MiniOS7 Utility provides serial PC diagnostic tools. These PC diagnostic
tools can be opened from the Tools menu of MiniOS7 Utility.
The PC Diagnostic tools include:
z
7188XW: is the PC side utility for modules using the ICPDAS MiniOS7. It is
the Win32 version of 7188x.exe. For 7188x.exe just can use the standard
COM
PORT(RS-232)
of
PC,
But
on
Win32
systems
(WIN95/98/ME/NT/2K/XP) also have RS-232 port use PCMCIA or USB
interface, 7188x.exe can not use these devices, so need the program
7188xw.exe. Using RS-232 ports of PC link to the modules using MiniOS7.
7188xw.exe in basically is a terminal program. It send out the data that user
key-in to COM port, and show the data received from COM port on the
screen of PC. The main function for 7188xw.exe is to DOWNLOAD files to
the MiniOS7 system.
Please download related files from our FTP site
7188XW command List
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z
Send232: uses serial port (RS-232) interface to communicate with devices.
And it can be used to test the Virtual COM technology.
Set the Com
port parameters
of PC.
Key-in the
string that you
want to send
The send/receive
messages will be
displayed over here.
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z
SendTCP: uses TCP protocol to communicate with the 7188E/8000E/7540D
and other devices from Ethernet.
Step 1: Run SendTCP in host-PC.
Step 2: Input the IP of i-7540D and press the “Connect” button to connect with
i-7540D. And then it will display “7188E3 is connected”.
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Step 3: Send command “10” to the i-7540D. And it will response “7188E3
message.
Step 4: Select “Port 2” and “CR”. Then send “$02M” to read 7000 module’s ID
which is connected to i-7540D’s COM2. If you enable 7000 module’s
checksum function, select “CS_CR”. The “CS_CR” option will add two
checksum bytes, then adds “CR”.
2
1
2
3
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Step 5: If you want to change the 7540D’s COM ports settings, click “Set” to
change them. The 7540D’s COM port that you want to configure is
specified by “Select Port” combo list. Port 2 means you want to
configure the 7188E’s COM2.
3
1
2
z
7188E: Command-prompt mode program, used to send data to specific
machines using TCP protocol.
Usage:
7188e [-S:IP] [-P:Port]: Connect to a device by using TCP protocol.
*Q: Quit program and disconnect.
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3.3
VxComm Utility
The VxComm (Virtual Comm) Driver and VxComm Utility are very easy to install
and use. This document shows how to install and configure the driver correctly.
For more information, please refer to section 5, VxComm application.
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4. Support Command List
For easy application, we provide 4 command strings to allow users to send
specific commands from i-7540D’s Ethernet port10003 to CAN bus. And receiving
response message form CAN bus. Also, we provide several commands for
i-7540D’s Ethernet port10000 to set and get the status of 7540D. It can cover
most applications of different requests. The general format of the i-7540D’s
commands are given below:
Port 10003 Command Format:
<Command><CR>
<Command> : The commands of the i-7540D.
All commands from this port must end with the character
“<CR>” (The ASCII value is 13).
<CR>
:
Table 4-1: Command list table (port 10003)
Command
Description
tIIILDD…<CR>
TIIIL<CR>
Send or receive a standard data frame.
Send or receive a standard remote frame.
Send or receive an extended data frame.
Send or receive an extended remote frame.
eIIIIIIIILDD…<CR>
EIIIIIIIIL<CR>
Note: The i-7540D’s COM3 (CAN port) can only accept these 4 commands.
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Port 10000 Command Format:
99<Command>
Specific command for getting or setting the status of the
7540D
99
:
Table 4-2: Command list table (port 10000)
Command
Description
S
Read the status value of i-7540D
Clear CAN error flag and FIFO
Reboot the i-7540D module.
C
RA
#P01
#P02
#P1
#P1B
Read the RS-232 configuration
Read the RS-485 configuration
Read the CAN configuration
Read the BTR0 and BTR1 configuration
Change the RS-232 configuration
Change the RS-485 configuration
Change the CAN configuration
Change the BTR0 and BTR1 configuration
Read Web ID configuration
$P0105BBDSP
$P0205BBDSP
$P114PBCC…MM…ET
$P1B04TTRR
#PWID
#PWPW
Read Web Password configuration
Change Web ID configuration
$PWIDLLxxxxx…
$PWPWLLxxxxx…
#PPC
Change Web Password configuration
Read CAN Pair Connection configuration
Read CAN Pair Destination IP
#PPIP
$PPCLLABC
$PPIPxxx…
Change CAN Pair Connection configuration
Change CAN Pair Destination IP
Note:
1. More detailed information related to of the each command will be described in
the following sub sections.
2. The #P1B and $P1B04TTRR commands just can be used on the firmware
version v1.04 or later.
3. The #PWID, #PWPW, $PWIDLLxxxxx…, $PWPWLLxxxxx…commands just
can be used on the firmware version v1.05 or later.
4. The #PPC, #PPIP, $PPCLLABC, $PPIPxxx…commands just can be used on
the firmware version v1.06 or later.
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4.1
tIIILDD…<CR>
Description: Send or receive a standard CAN data frame.
¾
Syntax: tIIILDD…<CR>
t
Represent a standard (2.0A) data frame.
III
11 bits Identifier (000~7FF)
Data length (0~8)
L
DD…
Input data frame value according to the data length
(00~FF)
¾
¾
Response:
Valid command: No response
Invalid command: ?<Error Code><CR>
Note:
It is necessary to enable the “Error Response” function in the i-7540D
Utility, in order to receive Syntax and/or communication error information
at the host PC.
¾
Example:
Command: t03F6112233445566<CR>
Send a CAN message with a standard data frame. ID=03F, DLC=6,
data1=11, data2=22, data3=33, data4=44, data5=55 and data6=66
Note: This command can only be accepted by 7540D’s port 10003
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4.2
TIIIL<CR>
Description: Send or receive a standard CAN remote frame.
¾
Syntax: TIIIL<CR>
T
Represents a standard (2.0A) remote frame.
III
L
11 bits Identifier (000~7FF)
Data length (0~8)
¾
¾
Response:
Valid command: No response
Invalid command: ?<Error Code><CR>
Note:
It is necessary to enable the “Error Response” function in the i-7540D
Utility, in order to receive Syntax and/or communication error information
at the host PC.
¾
Example:
Command: T2E88<CR>
Send a CAN message with a standard remote frame. ID=2E8, DLC=8.
Note: This command can only be accepted by 7540D’s port 10003
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4.3
eIIIIIIIILDD…<CR>
Description: Send or receive an extended CAN data frame.
¾
Syntax: eIIIIIIIILDD…<CR>
e
Stands for the extended (2.0B) data frame.
IIIIIIII
L
29 bits Identifier (00000000~1FFFFFFF)
Data length (0~8)
DD…
Input data frame value according to the data length
(00~FF)
¾
¾
Response:
Valid command: No response
Invalid command: ?<Error Code><CR>
Note:
It is necessary to enable the “Error Response” function in the i-7540D
Utility, in order to receive Syntax and/or communication error information
at the host PC.
¾
Example:
Command: e1234567851122334455<CR>
Send a CAN message with an extended data frame. ID=12345678,
DLC=5, data1=11, data2=22, data3=33, data4=44 and data5=55.
Note: This command can only be accepted by 7540D’s port 10003
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4.4
EIIIIIIIIL<CR>
Description: Send or receive an extended CAN remote frame.
¾
Syntax: EIIIIIIIIL<CR>
E
Stands for the extended (2.0B) CAN remote frame.
IIIIIIII
L
29 bits Identifier (00000000~1FFFFFFF)
Data length (0~8)
¾
¾
Response:
Valid command: No response
Invalid command: ?<Error Code><CR>
Note:
It is necessary to enable the “Error Response” function in the i-7540D
Utility, in order to receive Syntax and/or communication error information
at the host PC.
¾
Example:
Command: E010156786<CR>
Send a CAN message with an extended remote frame. ID=01015678,
DLC=6.
Note: This command can only be accepted by 7540D’s port 10003
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4.5
99S
Description: Read the i-7540D CAN Baud Rate and error flag message.
¾
Syntax: 99S
99S
Command character.
¾
Response:
Valid Command:
!CFFTTRRO<CR>
Invalid command: ERROR
!
Delimiter for valid command
current baud rate setting of CAN
CAN register
C
FF
TT
RR
O
CAN transmit error counter
CAN receive error counter
CAN FIFO Overflow flag
¾
Note:
Furthermore, all response results are shown in the ASCII format. Users
need to make an ASCII to hex format transformation in order to
understand what the meaning is based on the 4-2, 4-3, 4-4 tables.
Table 4-3: CAN baud rate list
Description
10K baud rate of CAN
20K baud rate of CAN
50K baud rate of CAN
100K baud rate of CAN
125K baud rate of CAN
250K baud rate of CAN
500K baud rate of CAN
800K baud rate of CAN
1000K baud rate of CAN
User defined
AsciiToHex(C)
0
1
2
3
4
5
6
7
8
9
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Table 4-4: CAN status register list
Name
Value
Function
AsciiToHex(FF)
Bus-off; the SJA100 is not involved in bus
activities
Bus-on; the SJA1000 is involved in bus
activities
Error; at least one of the error counter has
reached or exceeded the CPU warning
limit
Ok; both error counters are below the
warning limit
1
Bus Status
Bit 7 (MSB)
0
1
0
Error Status
Bit 6
Transmit; the SJA1000 is transmitting a
message
Idle; no transmit message is in progress
Receive; the SJA1000 is receiving a
message
Idle; no receive message is in progress
Complete; the previously requested
transmission is not yet completed
Incomplete; the previously requested
transmission is not yet complement
Released; the CPU may write a message
into the transmit buffer
1
0
1
0
1
Transmit Status
Receive Status
Bit 5
Bit 4
Transmission
Complete Status
Bit 3
Bit 2
0
1
0
Transmit Buffer
Status
Locked;
a
message is waiting for
transmission or is already in process
Overrun; a message was lost
Absent; no data overrun has occurred
Full; one or more messages are available
in the RXFIFO
1
0
Data Overrun Status
Receive Buffer Status
Bit 1
1
0
Bit 0 (LSB)
Empty; no message is available
Table 4-5: CAN Error flag list
Description
AsciiToHex(O)
Bit 3 =1
Bit 2 = 1
Bit 1 =1
Bit 0 =1
CAN Transmit Error
CAN Receive Error
CAN FIFO Overflow
Initial CAN Chip Error
¾
Example:
Command: 99S
Receive: !40C00000<CR>
Obtain some current information on the i-7540D module. The response
will show the following results: CAN baud rate=125K, CAN status
register= transmission complete and transmit buffer is released, CAN
transmit error counter=0, CAN receive error counter=0 and CAN FIFO=
normal.
Note: This command can only be accepted by 7540D’s port 10000
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4.6
99C
Description: Clear the CAN error flag and FIFO on the module.
¾
¾
¾
Syntax: 99C
99C
Command character.
Response:
Valid Command: No response.
Invalid command: ERROR
Note:
After sending this command, the CAN receive and transmit FIFO will be
clear. The error counter of reception and transmission will be set to zero.
And the TX and RX LEDs will turn OFF.
¾
Example:
Command: 99C
Note: This command can only be accepted by 7540D’s port 10000
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4.7
99RA
Description: Reboot the i-7540D module. Users can use this command to reboot
the module in order to allow it to work in order again.
¾
¾
¾
Syntax: 99RA
99RA
Command character
Response:
Valid Command: Reboot the i-7540D module.
Invalid command: ERROR
Example:
Command: 99RA
The i-7540D module will reboot after it had received this command.
Note: This command can only be accepted by 7540D’s port 10000
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4.8
99#P01
Description: Read the RS-232 configuration
¾
Syntax: 99#P01
99#P01
Command character
¾
Response:
Valid Command: 061BBDSP
Invalid command: ERROR
061
BB
D
Delimiter for valid command
RS-232 Baud rate
Data bit
0 = 7 bits data formation
1 = 8 bits data formation
Stop bit
S
P
0 = 1 stop bit
1 = 2 stop bits
Parity bits
0 = None
1 = Even
2 = Odd
RS-232 Baud rate list
Description
BB
00
01
02
03
04
05
06
07
08
09
0A
0B
110 bps baud rate of RS-232
150 bps baud rate of RS-232
300 bps baud rate of RS-232
600 bps baud rate of RS-232
1200 bps baud rate of RS-232
2400 bps baud rate of RS-232
4800 bps baud rate of RS-232
9600 bps baud rate of RS-232
19200 bps baud rate of RS-232
38400 bps baud rate of RS-232
57600 bps baud rate of RS-232
115200 bps baud rate of RS-232
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¾
Example:
Command: 99#P01
Response: 0610B100
The response will show the following results: RS-232 baud rate=115.2K
bps, data bits=8, stop bits=1, none parity.
Note: This command can only be accepted by 7540D’s port 10000
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4.9
99#P02
Description: Read the RS-485 configuration
¾
Syntax: 99#P02
99#P02
Command character
¾
Response:
Valid Command: 062BBDSP
Invalid command: ERROR
062
BB
D
Delimiter for valid command
RS-485 Baud rate
Data bit
0 = 7 bits data formation
1 = 8 bits data formation
Stop bit
S
P
0 = 1 stop bit
1 = 2 stop bits
Parity bits
0 = None
1 = Even
2 = Odd
RS-485 Baud rate list
Description
BB
00
01
02
03
04
05
06
07
08
09
0A
0B
110 bps baud rate of RS-485
150 bps baud rate of RS-485
300 bps baud rate of RS-485
600 bps baud rate of RS-485
1200 bps baud rate of RS-485
2400 bps baud rate of RS-485
4800 bps baud rate of RS-485
9600 bps baud rate of RS-485
19200 bps baud rate of RS-485
38400 bps baud rate of RS-485
57600 bps baud rate of RS-485
115200 bps baud rate of RS-485
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¾
Example:
Command: 99#P02
Response: 06207111
The response will show the following results: RS-485 baud rate=9600
bps, data bits=8, stop bits=2, even parity.
Note: This command can only be accepted by 7540D’s port 10000
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4.10 99#P1
Description: Read the CAN configuration
¾
Syntax: 99#P1
99#P1
Command character
¾
Response:
Valid Command: 14PBCCCCCCCCMMMMMMMMET
Invalid command: ERROR
14
P
Delimiter for valid command
CAN specification
0 = 2.0A
1 = 2.0B
B
CAN Baud rate
CCCCCCCC
32 bits Acceptance Code Register (00000000~FFFFFFFF)
MMMMMMMM 32 bits Acceptance Mask Register (00000000~FFFFFFFF)
E
Error response or not
0 = Disable
1 = Enable
T
Timestamp response or not
0 = Disable
1 = Enable
CAN baud rate list
B
0
1
2
3
4
5
6
7
8
9
Description
10K baud rate of CAN
20K baud rate of CAN
50K baud rate of CAN
100K baud rate of CAN
125K baud rate of CAN
250K baud rate of CAN
500K baud rate of CAN
800K baud rate of CAN
1000K baud rate of CAN
User Defined
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¾
Example:
Command: 99#P1
Response: 140400000000FFFFFFFF00
The response will show the following results: CAN specification=2.0A,
CAN baud rate=125Kbps, acceptance code register=00000000,
acceptance mask register=FFFFFFFF, disable error response, disable
timestamp response.
Note: This command can only be accepted by 7540D’s port 10000
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4.11 99#P1B
Description: Read the CAN Bus Timing Register
¾
Syntax: 99#P1
99#P1B
Command character
¾
Response:
Valid Command: 06PBTTRR
Invalid command: ERROR
06
P
Delimiter for valid command
CAN specification
0 = 2.0A
1 = 2.0B
B
CAN Baud rate
TT
RR
CAN Bus Timing Register 0 (00~FF)
CAN Bus Timing Register 1 (00~FF)
CAN baud rate list
B
0
1
2
3
4
5
6
7
8
9
Description
10K baud rate of CAN
20K baud rate of CAN
50K baud rate of CAN
100K baud rate of CAN
125K baud rate of CAN
250K baud rate of CAN
500K baud rate of CAN
800K baud rate of CAN
1000K baud rate of CAN
User Defined
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¾
Example:
Command: 99#P1B
Response: 06090014
The response will show the following results: CAN specification=2.0A,
CAN baud rate=User defined, BTR0=00, BTR1=14.
Note:
1. This command can only be accepted by 7540D’s port 10000
2. Supported by the firmware v1.04 or later.
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4.12 99$P0105BBDSP
Description: Change the RS-232 configuration of the i-7540D
¾
Syntax: 99$P0105BBDSP
99$P0105 Command character
BB
D
RS-232 Baud rate
Data bit
0 = 7 bits data formation
1 = 8 bits data formation
Stop bit
S
P
0 = 1 stop bit
1 = 2 stop bits
Parity bits
0 = None
1 = Even
2 = Odd
RS-232 Baud rate list
Description
BB
00
01
02
03
04
05
06
07
08
09
0A
0B
110 bps baud rate of RS-232
150 bps baud rate of RS-232
300 bps baud rate of RS-232
600 bps baud rate of RS-232
1200 bps baud rate of RS-232
2400 bps baud rate of RS-232
4800 bps baud rate of RS-232
9600 bps baud rate of RS-232
19200 bps baud rate of RS-232
38400 bps baud rate of RS-232
57600 bps baud rate of RS-232
115200 bps baud rate of RS-232
¾
Response:
Valid Command: OK
Invalid command: ERROR
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¾
Example:
Command: 99$P01050B100
Response: OK
Set the setting of RS-232 baud rate= 115.2Kbps, data bits=8, stop bit=1,
none parity bit into the i-7540D and the 7540D response “OK” command
to mean that the configuration of RS-232 has been changed.
Note: This command can only be accepted by 7540D’s port 10000
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4.13 99$P0205BBDSP
Description: Change the RS-485 configuration of the i-7540D
¾
Syntax: 99$P0205BBDSP
99$P0105 Command character
BB
D
RS-485 Baud rate
Data bit
0 = 7 bits data formation
1 = 8 bits data formation
Stop bit
S
P
0 = 1 stop bit
1 = 2 stop bits
Parity bits
0 = None
1 = Even
2 = Odd
RS-485Baud rate list
Description
BB
00
01
02
03
04
05
06
07
08
09
0A
0B
110 bps baud rate of RS-485
150 bps baud rate of RS-485
300 bps baud rate of RS-485
600 bps baud rate of RS-485
1200 bps baud rate of RS-485
2400 bps baud rate of RS-485
4800 bps baud rate of RS-485
9600 bps baud rate of RS-485
19200 bps baud rate of RS-485
38400 bps baud rate of RS-485
57600 bps baud rate of RS-485
115200 bps baud rate of RS-485
¾
Response:
Valid Command: OK
Invalid command: ERROR
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¾
Example:
Command: 99$P02050B100
Response: OK
Set the setting of RS-485 baud rate= 115.2Kbps, data bits=8, stop bit=1,
none parity bit into the i-7540D and the 7540D response “OK” command
to mean that the configuration of RS-485 has been changed.
Note: This command can only be accepted by 7540D’s port 10000
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4.14 99$P114PBCC…MM…ET
Description: Change the CAN configuration of the i-7540D
¾
Syntax: 99$P114PBCCCCCCCCMMMMMMMMET
99$P114
P
Command character
CAN specification
0 = 2.0A
1 = 2.0B
B
CAN Baud rate
CCCCCCCC
32 bits Acceptance Code Register (00000000~FFFFFFFF)
MMMMMMMM 32 bits Acceptance Mask Register (00000000~FFFFFFFF)
E
Error response or not
0 = Disable
1 = Enable
T
Timestamp response or not
0 = Disable
1 = Enable
CAN baud rate list
B
0
1
2
3
4
5
6
7
8
9
Description
10K baud rate of CAN
20K baud rate of CAN
50K baud rate of CAN
100K baud rate of CAN
125K baud rate of CAN
250K baud rate of CAN
500K baud rate of CAN
800K baud rate of CAN
1000K baud rate of CAN
User defined
¾
Response:
Valid Command: OK
Invalid command: ERROR
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¾
Example:
Command: 99$P1140400000000FFFFFFFF00
Response: OK
Set the setting of CAN specification=2.0A, CAN baud rate= 125 Kbps,
acceptance code=00000000, acceptance mask=FFFFFFFF, disable
error response, disable timestamp response into the i-7540D and the
7540D response “OK” command to mean that the configuration of CAN
has been changed.
Note: This command can only be accepted by 7540D’s port 10000
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4.15 99$P1B04TTRR
Description: Change the CAN Bus Timing Register of the i-7540D
¾
Syntax: 99$P1B04TTRR
99$P1B04
Command character
TT
Bus Timing Register 0 (00~FF)
Bus Timing Register 1 (00~FF)
RR
¾
Response:
Valid Command: OK
Invalid command: ERROR
Note:
1. This command can only be accepted by 7540D’s port 10000
2. Supported by the firmware v1.04 or later.
3. Users need to have the background of SJA1000 CAN controller and
82C251 CAN transceiver, and calculate the values of BT0 and BT1 by
themselves (The clock frequency of CAN controller is 16MHz.).
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4.16 99#PWID
Description: Read the Wed ID configuration
¾
Syntax: 99#PWID
99#PWID
Command character
¾
Response:
Valid Command: LLxxxxx…
Invalid command: ERROR
LL
Web ID data length, in hexadecimal format.
xxxxx…
Web ID saved in the EEPROM, the default Web ID setting
is “7540D”
¾
Example:
Command: 99$PWID
Response: 057540D
Read the Web ID setting of the 7540D, and the 7540D responses the the
Web ID setting is “7540D”.
Note:
1. This command can only be accepted by 7540D’s port 10000.
2. Supported by the firmware v1.05 or later.
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4.17 99#PWPW
Description: Read the Wed Password configuration
¾
Syntax: 99#PWID
99#PWPW Command character
¾
Response:
Valid Command: LLxxxxx…
Invalid command: ERROR
LL
Web password data length, in hexadecimal format.
xxxxx…
Web password saved in the EEPROM, the default Web
password setting is “icpdas7540D”
¾
Example:
Command: 99$PWPW
Response: 0Bicpdas7540D
Read the Web password setting of the 7540D, and the 7540D responses
the Web password setting is “icpdas7540D”.
Note:
1. This command can only be accepted by 7540D’s port 10000.
2. Supported by the firmware v1.05 or later.
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4.18 99$PWIDLLxxxxx…
Description: Change the Wed ID configuration
¾
Syntax: 99$PWIDLLxxxxx…
99$PWID
LL
Command character
Web ID data length, in hexadecimal format.
Web ID data, at most 30 ASCII characters
xxxxx…
¾
¾
Response:
Valid Command: OK
Invalid command: ERROR
Example:
Command: 99$PWID047540
Response: OK
Change the Web ID data setting of the 7540D to “7540” and the 7540D
responses “OK” command to mean that the configuration of Web ID data
has been changed.
Note:
1. This command can only be accepted by 7540D’s port 10000.
2. Supported by the firmware v1.05 or later.
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4.19 99$PWPWLLxxxxx…
Description: Change the Wed password configuration
¾
Syntax: 99$PWPWLLxxxxx…
99$PWPW Command character
LL
Web password data length, in hexadecimal format.
xxxxx…
Web password data that you want to configure. At most 30
ASCII characters
¾
¾
Response:
Valid Command: OK
Invalid command: ERROR
Example:
Command: 99$PWID0512345
Response: OK
Change the Web password data setting of the 7540D to “12345” and the
7540D responses “OK” command to mean that the configuration of Web
ID data has been changed.
Note:
1. This command can only be accepted by 7540D’s port 10000.
2. Supported by the firmware v1.05 or later.
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4.20 99#PPC
Description: Read the CAN bus pair connection configuration. Here support
three parameters, “enable can pair”, “TCP or UDP” and “Server or Client”
¾
Syntax: 99#PPC
99#PPC
Command character
¾
Response:
Valid Command: LLABC
Invalid command: ERROR
LL
A
number of parameters
Enable CAN bus pair connection flag, 0: Disable, 1: Enable
Using TCP or UDP connection; 0: TCP, 1: UDP
Act as a server or client; 0: server, 1: client
B
C
¾
Example:
Command: 99#PPC
Response: 03100
Read the CAN bus pair connection configuration of the 7540D, and the
7540D responses that enable can bus pair connection and act as a TCP
server.
Note:
1. This command can only be accepted by 7540D’s port 10000.
2. Supported by the firmware v1.06 or later.
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4.21 99#PPIP
Description: Read the destination IP of CAN bus pair connection.
¾
Syntax: 99#PPIP
99#PPIP
Command character
¾
Response:
Valid Command: XXX.XXX.XXX.XXX
Invalid command: ERROR
XXX.XXX.XXX.XXX Destination IP address.
¾
Example:
Command: 99#PPIP
Response: 192.168.255.2
Read the CAN bus pair connection destination IP of the 7540D, and the
7540D responses that destination IP address is “192.168.255.2”.
Note:
1. This command can only be accepted by 7540D’s port 10000.
2. Supported by the firmware v1.06 or later.
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4.22 99$PPCLLABC
Description: Change the CAN bus pair connection configuration. After setting
successfully, all parameters will take effective after system restart.
¾
Syntax: 99$PPCLLABC
99$PPC
Command character
LL
A
number of parameters, here fix to “03”
Enable CAN bus pair connection flag, 0: Disable, 1: Enable
Using TCP or UDP connection; 0: TCP, 1: UDP
Act as a server or client; 0: server, 1: client
B
C
Note:
1. When A=0, B and C take no effective
2. When using UDP connection(B=1), C take no effective
3. When acting as a TCP client or using UDP method, users need
to set the destination IP address (section 4.23), so that the
7540D can work correctly.
¾
¾
Response:
Valid Command: OK
Invalid command: ERROR
Example:
Command: 99$PPC03101
Response: OK
Change the CAN bus pair connection configuration of the 7540D to
“enable CAN bus pair connection” and act as a TCP client.
Note:
1. This command can only be accepted by 7540D’s port 10000.
2. Supported by the firmware v1.06 or later.
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4.23 99$PPIPxxx…
Description: Change the CAN bus pair connection destination IP address. After
setting successfully, all parameters will take effective after system re-start
¾
Syntax: 99$PPIPxxx…
99$PPIP
xxx…
Command character
IP address, iii/ppp/III/PPP: 3 digits number
Note:
This IP address is effective when enable CAN bus pair connection
and acting as TCP client or using UDP connection method.
¾
¾
Response:
Valid Command: OK
Invalid command: ERROR
Example:
Command: 99$PPIP192168255002
Response: OK
Change the CAN bus pair connection destination IP of the 7540D.
Note:
1. This command can only be accepted by 7540D’s port 10000.
2. Supported by the firmware v1.06 or later.
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4.24 General Error codes for commands from port 10003
Table 4-6: Error code table
AsciiToHex
Description
(Error code)
1
2
3
4
5
The head character of the command string is invalid.
The length of the command string is invalid.
The value of CAN identifier is invalid.
The value of CAN data length is invalid.
Reserved
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5. VxComm Applications
z
z
z
z
z
Overview
Installing the VxComm Driver
Adding a i-7540D and configuring the VxComm Driver
Removing a i-7540D
Uninstalling the VxComm Driver
5.1
Overview
The VxComm (Virtual Comm) Driver and VxComm Utility are very easy to
install and use. The first thing to do is to find the installation file in the included CD.
The directory is:
¾ 8000cd:\\napdos\7188e\tcp\vxcomm\driver(pc)\nt\
(for Windows NT 4.0) or
¾ 8000cd:\\napdos\7188e\tcp\vxcomm\driver(pc)\2k\
(for Windows 2000, Windows XP).
This document shows how to install and configure the driver correctly. The
first part instructs users how to install the software. The second part shows how to
add an i-7540D server and configure a COM port. Finally, the third part teaches
you how to remove an i-7540D.
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5.1.1 Architecture
The VxComm Driver creates COM port(s) and maps them to the COM port(s)
of the i-7540D. The user's RS-232 client programs need only to change to the
different COM port to access the serial devices that are allocated to the Internet or
Ethernet network via the i-7540D.
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5.1.2 Ports mapping
Vxcomm Driver/Utility supports Port 1 to Port 3 in accessing COM1 to COM3
of the i-7540D. Another Port I/O is designed to access the I/O boards mounted on
i-7540D, but it doesn’t use now. With the help of the VxComm Driver/Utility, uses
can map remote COM port to become a virtual COM port of PC. One PC can
control maximum number of 256 COM ports (including COM1 and COM2).
Local COM Port
(PC)
Remote COM port
(i-7540D)
VxComm Driver/Utility (PC)
COM ?
COM ?
COM ?
COM ?
Port 1
Port 2
COM1
COM2
Port 3
COM3 (CAN)
Reserved
Port I/O
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5.2
Installing the VxComm Driver
Step 1:
The installation software can be obtained from the following location.
z
driver(pc)/
z
8000cd:\\Napdos\7188e\TCP\vxcomm\driver(pc)\
Please choose the version that suits your Windows operation system.
z
z
z
vxcomm2K_vNNNNN.exe for Windows 2000/XP
vxcommnt_vNNNNN.exe for Windows NT
vxcomm98.exe for Windows 98
Step 2:
Go the where you download the installation file, and then double-click
the file in Windows to execute it.
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Step 3:
Select the “Yes, …” option and click the Finish button to restart your
computer.
Step 4:
After rebooting the computer, the VxComm Utility will ask you to
configure the virtual COM port(s). Please refer to the next section (5.3)
for more information.
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5.3
Adding an i-7540D and configuring the VxComm Driver
Step 1: Obtain the IP address of the i7540D. The MiniOS7 Utility can help you in
obtaining the IP address of the i-7540D.
Note: The default IP address of the i-7540D is 192.168.255.1
Step 2: From the Winsows Start Menu, go to Program/7188e/Vxcomm2K/ and
locate the VxComm Utility.
Step 3: Before adding an i-7540D, ensure that the Check Duplicated IP and
Connect to Server options are both checked. Type the IP address of
the i-7540D and then click the Add Server button to add a new server.
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Note:
z Check Duplicated IP option
This option checks whether the IP address is already listed in the server
window (left hand window). It is automatically checked by default. The
following alert will be displayed if an IP address is duplicated.
z
Connect to Server option
This option connects to the i-7540D and retrieves the name of device before
adding it to the server window (left hand window). It is automatically checked
by default. The following alert will be displayed if the Connect to Server
option is not checked before clicking the Add Server button. Choose the
correct i-7540D Model Number and then click the OK button (Here the
i-7540D model number is 7186E3).
z
z
Timeout (ms) field
This timeout value is used for Connecting, disconnecting and
sending/receiving data in the VxComm Utility, and is used for Connecting and
Disconnecting in the VxComm Driver.
Command Port field:
By default, the Command/Configuration TCP port is 10000. If you change the
setting of μPAC-7186E, then you must assign the correct one in this field to
let the VxComm Utility and Driver to get access to the device.
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Step 4:
And then it will display the name of “7186E3” and it’s IP. Select one of
the i-7540D devices and configure the virtual COM port(s) by double
clicking "Port 1", "Port 2" or “Port 3”.
Step 5:
Select an appropriate COM port number, and then click the OK button.
Note:
z
Re-assign COM number for all subsequent ports option
This option automatically sequentially assigns the ports with the available
COM port numbers.
z
Use 7188E/8000E current setting (Fixed Configuration)
If using this Port Configuration function, you will not be able to dynamically
change the Baud Rate and data format.
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Step 6:
Select one of the i-7540D modules, and then click the Server Options
button to configure the server options.
Step 7:
Enter the new configuration settings. The new settings will replace any
text already in the Server Options window text boxes. Click the OK
button to save the new settings.
Notes:
z
Keep Alive Time (ms) field:
After connecting to the μPAC-7186E, the VxComm Driver will automatically
and periodically send commands to keep the i-7540D alive. The timer will be
reset after each send/receive command/data success. The Keep-Alive
mechanism will not work until the next timeout. The default setting of
Keep-Alive time is about 7000 ms. Its recommended setting is (i-7540D’s
System Timeout * 1 / 3) or smaller value.
z
Connection-Broken (ms) field:
The VxComm Driver will try to re-connect if the connection is broken. When
the client is sending a message to the μPAC-7186E, the Internet (TCP/IP)
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layer may respond with a “Disconnect” event to the VxComm Driver if it fails
to send the message after 20 seconds or more. Users can set a smaller
Connection-Broken time (for example: 10000 ms) to force the VxComm
Driver to re-connect again and get a quicker response.
If the connection has no sending/receiving signal before the
Connection-Broken time has timed out, the connection will be marked as
broken. The VxComm Driver will also re-connect it again. Thus, the
Keep-Alive Time should be smaller than the Connection-Broken time to
make the connection come on-line.
The default System Timeout (/STxxx) value of the i-7540D is about 300
seconds. After client programs have connected to the μPAC-7186E, clients
have to send command to keep the i-7540D alive before it times out,
otherwise the μPAC-7186E will reset itself and clients will have to reconnect
to the i-7540D again.
Users can set the Keep-Alive Time and Connection-Broken time to 0 to
disable this mechanism. The System Timeout will have to be set to 0 to
disable the reset mechanism.
z
z
Connect Timeout (ms) field:
The timeout value will be passed into MS TCP/IP driver for reference when
connecting and disconnecting.
Command TCP Port field:
By default setting, the i-7540D use TCP port 10000 as the Command /
Configuration port. If you change the setting of i-7540D, you must assign the
correct one in the field. So the VxComm Driver can connect to the right TCP
port.
This TCP port is used to configure the Baud rate, data format, CTS/RTS
control mode and Break, etc.
z
Port7000 Port field:
By default setting, the i-7540D use TCP port 9999 as the Port7000 port. This
TCP port is reserved.
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Step 8: Click the Exit button to exit the VxComm Utility. Before exiting, the
Re-starting the Driver dialog window will automatically display. Click
the Re-start button to stop/start the driver.
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5.4
Removing an i-7540D
Step 1: Open the VxComm Utility.
Step 2: Click the server name you want to remove, and then click the Remove
Server button.
Step1
Step2
Step 3: The following window will be displayed, make sure of your choice, and
then click the Yes button to remove it.
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Step 4: Click the Exit button to finish this utility.
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Step 3: Find out the VxComm Driver, and click the “Remove” button.
Step 4: Click the button “Yes” to remove the software
Step 5: Finally, click the “OK” button to finish the uninstall process
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6. Application with PISO-CAN 200/400 T
In this chapter, we describe the i-7540D application in CAN network. On the
CAN bus side, the device is the PISO-CAN200/400-T of ICP DAS. And here the
i-7540D is a CAN-Ethernet gateway device. It allows users to send specific
commands from It’s Ethernet port10003 to CAN bus. Receive response message
form CAN bus and then convert these CAN messages to specific commands.
After converting, it sent these specific commands to those who establish
connection with it from port 10003. The architecture is depicted as figure 5-1.
Figure 6-1 Architecture of the demo in PISO-CAN200/400 PCI card
The information of devices and software in this application is below:
z
Hardware:
CAN bus side: PISO-CAN 200/400-T
Ethernet side: PC with VxComm technology
CAN-Ethernet Gateway: i-7540D
z
Software:
CAN bus side: the utility in PISO-CAN200/400 PCI card
Ethernet side: send232 tool in MiniOs7 Utility.
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Please do the following steps to setup the system before you execute this
application program.
Step 1: Setup the VxComm Utility. And the virtual COM port of PC is setting as
following figure. The installing steps about the VxComm Utility tool,
please see section 5.2.
Figure 6-2: VxComm Utility tool
Step 2: Install the PISO-CAN200/400 PCI card. For more information, please
see PISO-CAN user manual.
Step 3: Setup the system of i-7540D by using the i-7540D’s utility tool. Here the
parameters of i-7540D are setting as following figure.
Figure 6-3: i-7540D Utility tool
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Step 4: Now, start to send and receive message between PC’s RS-232 port and
CAN port by the i-7540D. The following figures display the sending and
receiving messages
t12381122334455667788
CAN card received messages
Messages sent from
RS-232 port by VxComm
technology
Figure 6-4: Send Messages from RS-232 to CAN
RS-232 port received
messages
Send messages from CAN card
Figure 6-4: Send Messages from RS-232 to CAN
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7. Diagnostics and Troubleshooting
7.1
Diagnostics
After configuring the VxComm Driver by using the VxComm Utility, the VxComm
Driver should work without error. However, users can use a simple test to make
sure it's working properly.
Note: The test method depends on the user's devices and client programs.
„ Example 1: Loop-Back Testing
Step 1: Connect the TXD1 to the RXD1 of the i-7540D.
Path 1
Path 2
COM1
RXD1
TXD1
COM1
(Real COM)
COM4
(Virtual COM)
Connect by a wire
Step 2: Set COM1 of the i-7540D as virtual COM4 of the Host PC using the
VxComm Utility.
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Step 3: On the Tools menu of the MiniOS7 Utility, and then click the Send232 to
open the Send232 application.
Step 4: Select the COM4, and then click the Open button to open COM4 of the
Host PC.
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Step 5: Type any characters in the Send text box, and then click the Send button.
The characters will be sent from COM4 of the Host PC to COM1 of the
i-7540D (via Path 1), and will be immediately returned from COM1 of the
i-7540D to COM4 of the Host PC (via Path 2) then displayed on the
Receive text box of the Send232.
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„ Example 2: Close-Loop Testing
Step 1: Establish a connection as follows:
Labels of CA0910
COM1
COM1
(Real COM)
COM4
(Virtual COM)
RX
TX
GND
Path 1
Path 2
RXD1
TXD1
GND
CA0910 Cable
Step 2: On the Tools menu of the MiniOS7 Utility, and then click the Send232 to
open the Send232 application.
Step 3: Select the COM1, and then click the Open button to open COM4 of the
Host PC.
Step 4: Set COM1 of the i-7540D as virtual COM4 of the Host PC using the
VxComm Utility.
Step 5: Execute another Send232 application, and open the virtual COM4 of the
Host PC.
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Step 6: Type “COM1” in left hand window, and then click Send button. Data will
be sent from COM1 of the Host PC through Path1 to COM1 of the
i-7540D and will be immediately returned through Path2 to COM4 of the
Host PC.
Step 7: Type “Virtual COM” in right hand window, and then click Send button.
Data will be sent from COM1 of the Host PC through Path1 to COM1 of
the i-7540D and will be immediately returned through Path2 to COM4 of
the Host PC.
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„ Example 3: External-Devices Testing
Connect 7000 series modules to COM2 of the i-7540D. Set COM2 of the as
virtual COM10 of the Host PC using the VxComm Utility. Thus, we can use the
DCON Utility to search the 7000 series module through COM10.
Note:
The DCON Utility has to be installed on your Host PC. The installation
software can be obtained from the following location:
z
z
http://ftp.icpdas.com/pub/cd/8000cd/napdos/driver/dcon_utility/setup/
CD:\Napdos\Driver\DCON_Utiltiy\Setup\
Step 1: Run the DCON Utility.
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Step2: Establish connection as follows:
Labels of CA0910
COM1
RXD1
TXD1
Path 1
COM4
(Virtual COM)
COM1
(Real COM)
RX
TX
GND
GND
Path 2
CA0910 Cable
7000 series module
7520
Male
Male
Step 3: Click the COM Port to choose the COM port number, baud rate, and
checksum. For example: COM10, 115200, 19200, 9600 and
No-Checksum. (These settings depend on the settings of 7000 series
module.)
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Step 4: Click the
search icon.
Step 5: If the VxComm Driver works properly, the DOCN Utility can search the
module(s) connected to COM2 of the i-7540D.
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7.2
Trouble Shooting
Problem 1: The client program fails to open the COM port that was created by
the VxComm Driver.
Solution 1: Check the power supply, network cable, IP address, subnet mask
and gateway of the i-7540D.
Problem 2: The client program still fails to open the COM port.
Solution 2:
Step1: Right click the My Computer icon and select the Manage option.
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Step 2: Select the Device Manager icon from the Computer Management
program.
Step 3: Click Show hidden devices from the View menu
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Step 4: Select the Non-Plug and Play Drivers/Ynsernet item.
Step 5: Right-click the mouse button on the Ynsernet item and click the
Properties.
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Step 6: Check that the message “This device is working properly” is
displayed. If the driver is shown as not working properly, remove it
and then re-install and reconfigure the driver.
Problem 3: The client programs successfully open the COM port, but fail to
access the device.
Solution 3: Check the power supply and wiring (RS-232: RXD, TXD; RS-485:
D+, D-; GND) of the device.
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Error Code: Only For i-7540D’s COM3 (CAN port)
If the Error response function on the i-7540D module is set to be “Yes”(that
mean enable) via the i-7540D Utility during the configuration period, the i-7540D
will send the error code to the device of the host PC through the Ethernet port
10003 when the i-7540D produces an error message automatically during the
operation mode. The meanings of these error codes are given below:
Table 7-1: Error code table
Error
Description
Possible causes & solutions
code
1
Invalid header The RS-232 command string header is not “t”,”T”,”e”,”E”.
The length of command string is invalid. For example:
Invalid length — Error: t0013112233
2
3
Right: t0013112233<CR>
The CAN identifier bits depend on CAN specification
Invalid CAN
CAN 2.0A: total 11 bits, 0x000 ~ 0x7FF
identifier
CAN 2.0B: total 29 bits, 0x00000000 ~ 0x1FFFFFFF
The data byte of the CAN Message does not match the data
Invalid CAN length of the CAN Message. For example:
data length — Error: t001512345<CR>
4
— Right: t00150102030405<CR>
If the i-7540D CAN baud rate is not the same as the CAN baud rate on the
CAN network, the ER LED on the i-7540D will be flash with a constant frequency
and the TX LED will solid green because the i-7540D cannot send any CAN
messages to the CAN network. Therefore, users will need to read the i-7540D
status by using the command “99S” (in the section 4.5) to help users understand
what is going in the module. In general, the following errors could occur: CAN
media connection problem, terminal resistor problem, different baud rate
configuration with CAN network and so on.
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