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ADAM 4000
Data Acquisition Modules
User's Manual
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Table of Contents
Chapter 1 Introduction ..….....……..................…..................…….. 1-1
1.1 Overview .......................…................................….........….…… 1-2
1.2 Applications ..................….........................…….............…....... 1-4
Chapter 2 Installation Guideline ...................….................…....... 2-1
2.1 System Requirements to set up an ADAM network ..…....... 2-2
2.2 Basic configuration and hook-up ....................……............... 2-6
2.3 Baud rate and Checksum .................................……............... 2-9
2.4 Multiple Module Hookup ...............................………............... 2-11
2.5 Programming Example.....................................……................ 2-12
Chapter 3 I/O Modules ..................................................…............. 3-1
3.1 ADAM-4011/4011D Thermocouple Input Modules ...…......... 3-3
3.2 ADAM-4012 Analog Input Module ………………..…............... 3-10
3.3 ADAM-4013 RTD Input Modules .......………………….…….... 3-15
3.4 ADAM-4015 6-channel RTD Input Module .…………….......... 3-17
3.5 ADAM-4015T 6-channel Thermistor Input Module ....…........ 3-20
3.6 ADAM-4016 Analog Input/Output Module....………….…....... 3-22
3.7 ADAM-4017/4017+/4018/4018M/4018+ 8-channel Analog Input
Modules ........……………………………………………………..... 3-27
3.8 ADAM-4019+ 8-channel Universal Analog Input
Module ..................................................................................... 3-37
3.9 ADAM-4021 Analog Output Module ........................…........... 3-41
3.10 ADAM-4024 4-channel Analog Output Module ................... 3-44
3.11 ADAM-4050 Digital I/O Module ……………………………..... 3-47
3.12 ADAM-4051 16-channel Isolated Digital Input Module ..…. 3-49
3.13 ADAM-4052 Isolated Digital Input Module ……………..…... 3-51
3.14 ADAM-4053 16-channel Digital Input Module …..……..…... 3-53
3.15 ADAM-4055 16-channel Isolated Digital I/O Module ……... 3-56
3.16 ADAM-4056S 12-channel Sink Type Isolated Digital Output
Module …………………………………………………….……..... 3-61
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3.17 ADAM-4056SO 12-ch. Source Type Isolated Digital Output
Module ………….…………………………………………..……... 3-63
3.18 ADAM-4060/4068 Relay Output Module ................…........... 3-65
3.19 ADAM-4069 8-channel Relay Output Module ………………. 3-69
3.20 ADAM-4080/4080D Counter/Frequency Input Modules ….. 3-72
Chapter 4 Command Set ..................................................…......... 4-1
4.1 Introduction.................................................................….......... 4-2
4.2 Syntax .........................................................................….......... 4-2
4.3 I/O Module Commands Search Table ......................….......... 4-4
Chapter 5 Analog Input Module Command Set ........….............. 5-1
5.1 Analog Input Command Set ................................……............ 5-2
5.2 Analog Input Data Logger Command Set ............….…......... 5-34
5.3 Digital I/O, Alarm and Event Command Set ......………......... 5-47
5.4 Excitation Voltage Output Command Set ............…….......... 5-61
Chapter 6 AO commands..................................................…......... 6-1
6.1 Analog Output Module Command for ADAM-4021…............ 6-2
6.2 Analog Output Module Command for ADAM-4024...…......... 6-19
Chapter 7 Digital IO, Relay & Counter commands.........…......... 7-1
7.1 Configuration, Counter Input and Display Command Set ... 7-2
7.2 Counter/Frequency Module Command.................................. 7-28
7.2.1 Configuration, Counter Input and Display Command Set…... 7-28
7.2.2 Counter Setup Command Set................................................... 7-40
7.2.3 Digital Filter and Programmable Threshold Command Set….7-49
7.2.4 Digital Output and Alarm Command Set.................................. 7-60
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Chapter 8 Calibration ...........................................…..................... 8-1
8.1 Analog Input Module Calibration ............................…........... 8-2
8.2 Analog Input Resistance Calibration .................................... 8-5
8.3 Analog Input Thermistor module Calibration ....................… 8-7
8.4 Analog Output Calibration ..................................................... 8-13
Appendix A Technical Specifications..............................…......... A-1
A.1 ADAM-4011 Thermocouple Input Module ................…......... A-2
A.2 ADAM-4011D Thermocouple Input Module with LED
Display .......................................................................……...... A-5
A.3 ADAM-4012 Analog Input Module ......................................... A-8
A.4 ADAM-4013 RTD Input Module ......................................….... A-10
A.5 ADAM-4016 Strain Gauge Input Module .....................…...... A-12
A.6 ADAM-4017/4017+ 8-Channel Analog Input Module ..…..... A-14
A.7 ADAM-4018/4018+ 8-channel Analog Input Module ...…..... A-16
A.8 ADAM-4018M 8-channel Analog Input Data Logger ....…... A-19
A.9 ADAM-4019+ 8-channel Universal Analog Input Module A-22
A.10 ADAM-4021/4024 Analog Output Module ........................... A-24
A.11 ADAM-4050 Digital I/O Module.................................…......... A-28
A.12 ADAM-4051/4052 Isolated Digital Input Module ................. A-30
A.13 ADAM-4053 16-channel Digital Input Module ............…..... A-32
A.14 ADAM-4055 16-channel Digital I/O Module ............…......... A-34
A.15 ADAM-4056S 12-channel Sink Type Isolated Digital Output
Module .......…………………………………………………...….. A-36
A.16 ADAM-4056SO 12-channel Source Type Isolated Digital Output
Module ........……………………………………………….…...... A-38
A.17 ADAM-4060 Relay Output Module........................................ A-40
A.18 ADAM-4068/4069 8-channel Relay Output Module ............ A-42
A.19 ADAM-4080 Counter/Frequency Input Module ................... A-44
A.20 ADAM-4080D Counter/Frequency Input Module with LED
Display …................................................................................ A-46
Appendix B Data Formats and I/O Ranges ..................…............ B-1
B.1 Analog Input Formats.............................................…............. B-2
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B.1.1 Engineering Units .............................................................…….......... B-2
B.1.2 Percent of FSR .................................................................…............. B-3
B.1.3 Twos complement hexadecimal .....................................……............ B-4
B.1.4 Ohms ..............................................................................……............ B-5
B.2 Analog Input Ranges.............................................….............. B-6
B.3 Analog Output Formats ..............................................…........ B-11
B.3.1 Engineering Units ............................................................………........ B-11
B.3.2 Percent of Span ........................................................…….................. B-11
B.3.3 Hexadecimal ............................................................………............... B-11
B.4 Analog Output Ranges .......................................…................ B-12
Appendix C Technical Diagrams .................................…............. C-1
C.1 ADAM Dimensions ..............................................…................ C-2
C.2 Installation .............................................................….............. C-3
C.2.1 DIN-Rail Mounting ......................................................…...….............. C-3
C.2.2 Panel Mounting .............................................................…….............. C-5
C.2.3 Piggyback Stack ....................................................….....….................C-7
Appendix D Utility Software .................................…..................... D-1
D.1 ADAM-4000 Utility Software ......................…......................... D-2
D.2 The procedure for ADAM-4000 series installation guide…..D-6
Appendix E RS-485 Network .............................…........................ E-1
E.1 Basic Network Layout ................................…......................... E-3
E.2 Line Termination .........................................…........................ E-5
E.3 RS-485 Data Flow Control ..................................................... E-7
Appendix F How to use the Checksum feature ..........…............ F-1
F.1 Checksum Enable/Disable ......................................…............ F-2
Appendix G ADAM-4000 I/O Modbus Mapping Table ....…......... G-1
Appendix H Changing Configuration to Modbus Protocol ....... H-1
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Introduction
1
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Introduction
1.1 Overview
The ADAM Series is a set of intelligent sensor-to-computer
interface modules containing built-in microprocessor. They are
remotely controlled through a simple set of commands issued in ASCII
format and transmitted in RS-485 protocol. They provide signal
conditioning, isolation, ranging, A/D and D/A conversion, data
comparison, and digital communication functions. Some modules
provide digital I/O lines for controlling relays and TTL devices.
Software Configuration and Calibration
By merely issuing a command from the host computer, you can
change an analog input module to accept several ranges of voltage input,
thermocouple input or RTD input. All of the module’s configuration
parameters including I/O address, communication speed, HI and LO
alarm, calibration parameters settings may be set remotely. Remote
configuration can be done by using either the provided menu-based
software or the command set’s configuration and calibration commands.
By storing configuration and calibration parameters in a nonvolatile
EEPROM, modules are able to retain these parameters in case of power
failure.
Watchdog Timer
A watchdog timer supervisory function will automatically reset the
ADAM modules in the event of system failure. Maintenance is thus
simplified.
Power Requirements
Although the modules are designed for standard industrial
unregulated 24 VDC power supply, they accept any power unit that
supplies power within the range of +10 to +30 VDC. The power supply
ripple must be limited to 5 V peak-to-peak, and the immediate ripple
voltage should be maintained between +10 and +30 VDC.
Connectivity and Programming
ADAM modules can connect to and communicate with all computers
and terminals. They use RS-485 transmission standards, and
communicate with ASCII format commands. The command set for
every module type consists of approximately ten different commands.
1-2
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Chapter 1
The command set for input modules is larger because it incorporates
alarm functions. All communications to and from the module are
performed in ASCII, which means that ADAM modules can be
virtually programmed in any high-level language.
RS-485 Network
The RS-485 network provides lower-noise sensor readings, as
modules can be placed much closer to the source. Up to 256 ADAM
modules may be connected to an RS-485 multi-drop network by using
the ADAM RS-485 repeater which extends the maximum
communication distance up to 4,000 ft. The host computer is connected
to the RS-485 network with one of its COM ports through the ADAM-
452x module (RS-232 to RS-422/485 converter).
To boost the network’s throughput, ADAM RS-485 repeater uses a
logical RTS signal to manage the repeater’s direction. The only two
wires that are needed for the RS-485 network, DATA+ and DATA-, are
inexpensive shielded twisted pair.
Panel/DIN Rail mounting
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Introduction
ADAM modules can be mounted on any panels, brackets, or DIN
rails. They can also be stacked together.
The RS-485 network, together with screw-terminal plug connectors,
allows for system expansion, reconfiguration, and repair without
disturbing field wiring.
Protection against the environment
Since all the configurations are controlled by software, the
protection provided by the packaging is very important. The plastic
outer shell enhances resistance against corrosive materials, moistures
and vibrations. ADAM modules’ low power requirements help them to
operate in temperatures from 0 to 70 ℃, and in humidity from 0 to 95%
(non-condensing). They are compactly built using automated SMT
technology. Therefore, they can be implemented in water-tight and
explosion-proof industrial enclosures.
1.2 Applications
• Remote data acquisition
• Process monitoring
• Industrial process control
• Energy management
• Supervisory control
• Security systems
• Laboratory automation
• Building automation
• Product testing
• Direct digital control
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Installation Guideline
2
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Installation Guideline
This chapter provides guidelines to what is needed to set up and
install an ADAM network. A quick hookup scheme is provided that lets
you configure modules before they are installed in a network. To help
you connect ADAM modules with sensor inputs, several wiring
examples are provided. At last, you will find a programming example
using the ADAM command set at the end of this chapter.
Be sure to plan the layout and configuration of your network
carefully before you start. Guidelines regarding layout are given in
Appendix E: RS-485 Network.
2.1 System Requirements to set up an ADAM network
The following list gives an overview of what is needed to setup,
install and configure an ADAM environment.
• ADAM modules
• A host computer, such as an IBM PC/AT compatible, that can
output ASCII characters with a RS-232C or RS-485 port.
• Power supply for the ADAM modules (+10 to +30 VDC )
• ADAM Series Utility software
• ADAM Isolated RS-232/RS-485 Converter (optional)
• RS-232/RS-485 ADAM Repeater (optional)
Host computer
Any computer or terminal that can output in ASCII format over
either RS-232 or RS-485 can be connected as the host computer. When
only RS-232 is available, an ADAM RS-232/RS-485 Converter is
required to transform the host signals to the correct RS-485 protocol.
The converter also provides opto-isolation and transformer-based
isolation to protect your equipment.
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Chapter 2
Power supply
For the ease of use in industrial environments, the ADAM modules
are designed to accept industry standard +24 VDC, unregulated power.
Operation is guaranteed when using any power supply between +10 and
+30 VDC . Power ripples must be limited to 5 V peak to peak while the
voltage in all cases must be maintained between +10 and +30 VDC . All
power supply specifications are referenced at module connector. When
modules are powered remotely, the effects of DC voltage drops must be
considered.
All modules use on-board switching regulators to sustain good
efficiency over the 10 to 30 V input range; therefore, we can assume
that the actual drawn current is inversely proportional to the DC voltage.
The following example shows how to calculate the required current that
a power supply should provide.
Assume that a +24 VDC is used for five ADAM-4011 Analog Input
Modules, and the distance between modules and power supply is not
significant enough to cause a DC voltage drop. One ADAM-4011
module consumes a maximum of 1.2 Watts (W). The total required
power will equal to 5 x 1.2=6 W. A power supply of +24 VDC should
therefore be able to supply a minimal current of 6 / 24=0.25 Amps.
Small systems may be powered by using wall-mounted modular
power supplies. Also, when modules operate in long communication
lines (>500 feet), it is often more reliable to obtain power locally
through modular power supplies. These inexpensive units can be easily
obtained from any electronic retail stores.
The power cables should be selected according to the length of the
power lines and the number of modules connected. When implementing
a network with long cables, the use of thicker wire is more suitable due
to the limitation of DC voltage drop. Furthermore, long wires can also
cause interference with communication wires.
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Installation Guideline
Figure 2-1 Power Supply Connections
We advise the following standard colors (as indicated on the
modules) for each power line:
+Vs
GND
(R)
(B)
Red
Black
Communication Wiring
We recommend the use of shielded-twisted-pair cable in the ADAM
network for reducing interference purpose, but the cable has to comply
with the EIA RS-485 standard. Furthermore, only one set of twisted-
pair cable is required for transmitting Data. We advise the following
standard colors (as indicated on the modules) for each the
communication line:
DATA+ (Y)
DATA- (G)
Yellow
Green
ADAM Utility Software
A menu-driven utility program is provided for ADAM module
configuration, monitoring and, calibration. It also includes a terminal
emulation program that lets you communicate through the ADAM
command set. (See Appendix D, Utility Software and online help)
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Chapter 2
Notice: User can refer our help file to see more details for explanation of
Utility operation.
ADAM Communication Speed
In ADAM series, the baud rate can be configured from 1200 bps to
38.4 Kbps. However, the baud rate of all modules in an RS-485
network must be the same.
ADAM Isolated RS-232/RS485 Converter (optional): ADAM-452x
When the host computer or terminal only has a RS-232 port, an
ADAM Isolated RS-232/RS-485 Converter is required. Since this
module is not addressable by the host, the baud rate must be reset using
a switch inside the module. The factory default setting is 9600 baud.
ADAM Repeater (optional): ADAM-451x
When communication lines exceed 4000 ft (1200 meter) or more
than 32 ADAM modules are connected, a repeater should be
implemented. In a network, up to eight Repeater modules can be
connected allowing connection up to 255 ADAM modules. As with the
Converter module, the Repeater module is not addressable by the host
and the baud rate must be reset by changing the switch inside the
module. The factory default setting is 9600 baud.
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Installation Guideline
2.2 Basic configuration and hook-up
Before placing a module in an existing network, the module should
be configured. Though all modules are initially configured at the
factory, it is recommended to check if the baud rate is set correctly
beforehand.
Default Factory Settings
Baud rate: 9600 Bit/sec.
Address: 01 (hexadecimal)
The basic hook-up for module configuration is shown below.
Figure 2-2 Basic Hook-up of ADAM Module to Host Switches
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Chapter 2
The following items are required to configure a module: an ADAM
converter module, a personal computer with RS-232 port (baud rate set
to 9600) and the ADAM utility software.
Configuration with the ADAM Utility Software
The easiest way to configure the ADAM module is by using the
ADAM utility software. It is a user friendly structured menu program
that will guide you through every step of the configuration. (See
Appendix D, Utility Software)
Changing the protocol from ADAM ASCII to Modbus
Some ADAM-4000 modules support both ADAM ASCII and
Modbus protocols, and the factory default setting of these modules is
ADAM ASCII protocol. If you would like to configure the modules to
Modbus protocol, please refer to Appendix H which describes how to
change the protocol in ADAM utility.
Configuration with the ADAM command set
ADAM modules can also be configured by issuing direct commands
through a terminal emulation program that is part of the ADAM utility
software. The following example will guide you through the setup of an
analog input module. Assume an ADAM-4011 Analog Input module
still has its default settings (baud rate 9600 and address 01h), and you
are being requested to send its default settings before any
reconfiguration is made.
NOTICE: An analog input module requires a maximum of 7 seconds
to perform auto calibration and ranging after reboot or start up.
During this time span, the module can not be addressed to perform
any other actions.
Example:
Make sure that the module is properly connected and turn on all the
connected devices. Then, start the terminal emulation program, and
type in the following command:
$012(cr)
The command above requests the module with address 01 to send its
configuration status
!01050600
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Installation Guideline
Module at address 01 responds that it is configured for an input
range of +/-2.5 V, baud rate of 9600, integration time of 50 ms (60 Hz).
The code also shows engineering units and no checksum checking or
generation.
To change the configuration setting of the analog input module, the
following command is issued:
%01070F0600(cr)
% = change configuration
01 = target module at address 00 to:
07 = change address to 07 hexadecimal
0F = set input range to Type K thermocouple
06 = set baud rate to 9600
00 = set integration time to 50 ms (60 Hz)
disable checksum
set data format to engineering units
(Please refer to Chapter 4, a full description of Command set syntax for
an analog input module)
When the module received the configuration command, it will
respond with its new address as shown below:
!07(cr)
Before giving more commands to the module, please wait for 7
seconds to let the new configuration settings to take effect.
NOTICE: All reconfiguration except for changing baud rate and
checksum values can be done dynamically, and the modules are not
required to reset. However, all the connected devices are required to
reset by turning power off and on after the baud rate or checksum
values are changed. The baud rate or checksum values should be the
same for all the connected devices after the reconfiguration. See the
next page for a strategy in changing baud rate and checksum of the
network.
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Chapter 2
2.3 Baud rate and Checksum
ADAM modules contain EEPROMs to store configuration
information and calibration constants. The EEPROM replaces the
conventional array of switches and pots that are originally used for
specifying baud rate, input and output range… etc.
Since there is no visual indication of a module’s configuration status,
it is impossible to know the baud rate, address and other settings just by
looking at it. It might not be possible to establish communications with
a module whose baud rate and address are unknown. To overcome this
problem, most modules have an input terminal labeled INIT*. Booting
the module while connecting the INIT* terminal with the module’s
GND terminal forces the configuration into a known state called the
INIT* state. Besides, some newer modules have INIT switch which you
can set “Init” or “Normal” (See Figure 2.4). If you set the switch to
“Init”, then it becomes INIT* state.
INIT* state defaults:
Baud rate: 9600
Address: 00h
Checksum: disabled
Forcing the module in INIT* state does not change any parameters
in the module’s EEPROM. When the module is in the INIT* state with
its INIT* and GND terminals shorted, all configuration settings can be
changed, and the module will respond to all other commands normally.
Changing Baud rate and Checksum
Baud rate and checksum settings have several things in common:
• They should be the same for all modules and host computer.
• Their settings can only be changed by putting a module in the INIT*
state.
• Changed settings can only take effect after a module is rebooted
To alter baud rate or checksum settings, you must perform the
following steps:
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Installation Guideline
• Power on all components except the ADAM Module.
• Power the ADAM module on while shorting the INIT* and GND
terminals (See Figure 2-3) or set the INIT switch to “Init” (See
Figure 2-4)
Figure 2-3 Grounding the INIT* Terminal
Figure 2-4 Set INIT switch to “Init”
• Configure the checksum status and/or the baud rate.
• Switch the power OFF to the ADAM Module.
• Remove the grounding of the INIT* terminal and turn on the
module, or set the INIT switch to “Normal”.
• Check the settings (If the baud rate has changed, the settings on the
host computer should be changed accordingly).
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Chapter 2
2.4 Multiple Module Hookup
The Figure below is an example of how ADAM modules are connected
in a multiple module network:
Figure 2-5 Multi-module Connection
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Installation Guideline
2.5 Programming Example
The following example is a simple program written in Visual Basic 6.0
that demonstrates how to get temperature reading which is stored in the
address of 01H from ADAM-4011 module.
Step 1. Using ADAM Utility to check the settings as the following below:
“Address = 01H”, “Baud rate = 9600” and “Checksum = Disabled”.
Step 2. Run VB 6.0 and add a control via “Project\Component”.
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Chapter 2
Step 3. Select “Microsoft Comm Control”
Step 4. Add the Comm Control on the form.
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Installation Guideline
Step 5. Add three Command Buttons on the form as shown below
Step 6. Add one Label and one Text on the form as shown below.
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Chapter 2
Step 7. Click OPEN Button and type in the following codes. The source
codes are listed at the end of this section.
Step 8. Click SEND Button and type in the following codes. The source
codes are listed at the end of this section.
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Installation Guideline
Step 9. Click CLOSE Button and type in the following codes. The source
codes are listed at the end of this section.
Step 10. Run the Project → Click OPEN to open COM1 → Click SEND to
send the Get Temperature Reading Command. Now, you will find the
reading the same as the displayed format shown below.
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Chapter 2
Program Source Codes:
ΠOPEN Command Button:
Private Sub Command1_Click()
' Buffer to hold input string
Dim Instring As String
' Use COM1.
MSComm1.CommPort = 1
' 9600 baud, no parity, 8 data, and 1 stop bit.
MSComm1.Settings = "9600,N,8,1"
' Tell the control to read entire buffer when Input
' is used.
MSComm1.InputLen = 0
' Open the port.
MSComm1.PortOpen = True
End Sub
ΠSEND Command Button:
Private Sub Command2_Click()
' Send Get AI command to ADAM-4011 Module at address 01H.
MSComm1.Output = "#01" & Chr$(13)
' Wait for data to come back to the serial port.
Do
DoEvents
Buffer$ = Buffer$ & MSComm1.Input
Loop Until InStr(Buffer$, vbCr)
' Read the response till the carriage return character.
Text1.Text = Buffer$
' Display the reading.
End Sub
ΠCLOSE Command Button
Private Sub Command3_Click()
' Close the serial port.
MSComm1.PortOpen = False
End Sub
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I/O Modules
3
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I/O Modules
3.0 The common specification of ADAM-4000 I/O Series
Communication:
z
z
RS-485 (2-wire) to host
Speeds: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
(ADAM-4080, ADAM-4080D only support up to 38400 bps)
Max. communication distance: 4000 feet (1.2 km)
Power and communication LED indicator
ASCII command/response protocol
Communication error checking with checksum
Asynchronous data format: 1 start bit, 8 data bits, 1 stop bit, no parity
(N, 8, 1)
z
z
z
z
z
z
z
z
Up to 256 multidrop modules per serial port
Online module insertion and removal
Transient suppression on RS-485 communication lines
Power Requirement:
z
Unregulated +10 ~ +30 VDC
z
Protected against power reversal
Mechanical:
z
z
Case
Plug-in screw
Terminal block
ABS+PC with captive mounting hardware
Accepts 0.5 mm2 to 2.5 mm2,
#14 ~22 or #14~28 AWG
Environment
z
z
z
z
EMI
Meets FCC Class A or CE
Operating Temperature
Storage Temperature
Humidity
-10 ~ 70° C (14 ~ 158° F)
-25 ~ 85° C (-13 ~ 185° F)
5 ~ 95%, non-condensing
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Chapter 3
3.1 ADAM-4011/4011D Thermocouple Input Modules
The ADAM-4011/4011D Thermocouple Input Modules use a
microprocessor-controlled integrating A/D converter to convert sensor
voltage, current or thermocouple signal into digital data. The digital
data is then translated into either two’s complement hexadecimal
format or percentage of full-scale range (FSR) according to the
module’s configuration. When prompted by the host computer, the data
is sent through a standard RS-485 interface.
The ADAM-4011/4011D Thermocouple Input Modules offer signal
conditioning, A/D conversion, ranging, and RS-485 digital
communication functions. They protect your equipment from power
surges at the ground terminal by providing opto-isolation of the A/D
input and transformer based isolation up to 3000 VDC. (ADAM-4011
has transformer-based isolation up to 500 VDC)
Open Thermocouple Detection and Input Surge Protection
(ADAM-4011D only)
The ADAM-4011D provides an open thermocouple detection
function. Users can use a simple command to detect whether the
thermocouple is opened or closed. The module also provides surge
protection on its input channel. Internal high-speed transient suppressor
on its input channel protects the module from dangerous spikes and
voltages.
Front Panel LED Indicator (ADAM-4011D only)
The 4½ digits LED display on the back of the ADAM-4011D lets
you monitor the process readings right at their source. The module
displays readings in a wide variety of formats as well as high-low alarm
messages. The ADAM-4011D offers flexibility, easy installation, and
direct availability of process data. For critical process monitoring, this
module is the ideal choice.
Digital Input/Output
The ADAM-4011/4011D Thermocouple Input Modules also contain
two digital outputs and one digital input. Outputs are open-collector
transistor switches that may be controlled by the host computer. They
can control solid-state relays, which may be used to control heaters,
pumps, and other electrical powered equipment. The digital inputs may
be read by the host computer and used to sense the state of a remote
digital signal.
Chapter 3 I/O Modules 3-3
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I/O Modules
Event counting
The event counter is connected to the Digital Input channel and can
be used to keep track of the total amount of external low-speed pulses.
Its accumulated maximal count is 65535. The count will maintain at
65535 even if the actual number of events exceeds 65535. The counter
can be read or reset to zero by the host computer.
Since the Event counter’s data are not stored in EEPROM, the event
counter is cleared and set to zero after every reset or start up of the
analog input module.
Alarm signaling
Analog input modules include High and Low alarm functions. High
and Low alarm limits may be downloaded into the module’s EEPROM
by the host computer.
The alarm functions can be enabled or disabled remotely. When the
alarm function is enabled, both Digital Output channels are used to
indicate the High and Low alarm state. Digital Output channel 1 (DO1)
equals to High alarm state, and Digital Output channel 0 (DO0) equals
to Low alarm state. The High and Low alarm states can be read at any
time by the host computer.
Every A/D conversion will be followed by a comparison with the
High and Low limit. When the input value exceeds one of these limits,
the High or Low alarm state is set to ON.
There are two alarm mode options, Momentary and Latching. If the
alarm is in Latching mode, the alarm will stay on even if the input value
returns within the limits. An alarm in Latching mode can be turned OFF
by giving a Clear Alarm command from the host computer. A Latching
alarm is cleared by the module when the opposite alarm is set. When
the module receives a value that is lower than the Low alarm limit, it
will clear the High alarm and turn the Low alarm ON.
When the alarm is in Momentary mode, the alarm will be turned
OFF as soon as the input value returns within the limits.
The arrangement of coupling High and Low alarm states with
Digital Output lines may be utilized to build ON/OFF controllers that
can operate without the involvement of host computer.
3-4
ADAM 4000 Series User’s Manual
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Chapter 3
Function Description for the ADAM-4011 Thermocouple Input
Module
To provide a better understanding of the ADAM module functions,
the following is a description of the module ADAM-4011 with the most
extensive set of functions.
All analog input data first flow through the PGA (programmable
gain amplifier). The amplifier can vary its gain from 1 to 128. The PGA
then automatically adjusts the signal to a range from -2.5 V to +2.5 V.
This ensures an optimal input voltage and resolution for the A/D
converter.
The A/D conversion is supervised by the microprocessor that holds
the calibration software. Two kinds of calibrations, Auto Zero and Auto
Span calibrations, take place automatically in startup or reset. Normal
calibration is used to adjust the signal according to calibration
parameters defined by the user.
The digital 10 Hz filter provides a steady state output by using the
Δ function.
Before the data enter the microprocessor, they pass through an
optical isolation device which prevents the chance of circuit damaging
caused by power surges from the ground terminal.
The microprocessor has six basic functions:
- Linearization of T/C (Thermocouple)
- Communication software and command set
- Calibration software
- Alarm monitoring
- Event counting
- Management of the EEPROM device that holds the system parameters
- Data transformation
After data have been transformed to the right data format, they are
being passed on to the RS-485 output port.
If an input value exceeds the High alarm setting or falls below the
Low alarm setting, a flag is set in one of the Digital Output channels.
Finally, the on-board switching regulator accepts voltage between +10
and +30 VDC, and it has an isolation value of 500 VDC to protect your
equipment from damages caused by power surges.
Chapter 3 I/O Modules 3-5
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I/O Modules
ADAM-4011 Thermocouple Input Module
Figure 3-1 ADAM-4011 Thermocouple Input Module
Accepts:
- J, K, T, E, R, S and B thermocouples
- Millivolt inputs: ±15 mV, ±50 mV, ±100 mV and ±500 mV
- Volt inputs: ±1 V and ±2.5 V
- Current input: ±20 mA (Requires a 125 resistor)
Two digital output channels and one digital input channel are provided.
Depending on the module’s configuration setting, it can forward the
data to the host computer in one of the following formats:
- Engineering units (o C, mV, V or mA)
- Percent of full-scale range (FSR)
- Two’s complement hexadecimal
3-6
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Chapter 3
ADAM-4011D Thermocouple Input Module
Figure 3-2 ADAM-4011D Thermocouple Input Module with LED Display
Accepts:
- J, K, T, E, R, S and B thermocouples
- Millivolt inputs: ±15 mV, ±50 mV, ±100 mV and ±500 mV
- Volt inputs: ±1 V and ±2.5 V
- Current input: ±20 mA (Requires a 125 resistor)
Two digital output channels and one digital input channel are provided.
Depending on the module’s configuration setting, it can forward the
data to the host computer in one of the following formats:
- Engineering units (oC, mV, V, or mA)
- Percent of full-scale range (FSR)
-Two’s complement hexadecimal
Chapter 3 I/O Modules 3-7
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I/O Modules
Application Wiring
Figure 3-3 ADAM-4011/4011D Thermocouple Input Wiring Diagram
Figure 3-4 ADAM-4011/4011D Millivolt and Volt Input Wiring Diagram
Figure 3-5 ADAM-4011/4011D Process Current Input Wiring Diagram
3-8
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Chapter 3
Figure 3-6 ADAM-4011/4011D Digital Output Wiring Diagram
Used with SSR (HI-LO alarm)
Figure 3-7 ADAM-4011/4011D Digital Input Wiring Diagram
Used with TTL
Figure 3-8 ADAM-4011/4011D Digital Input Wiring Diagram
Used with Dry contact
Chapter 3 I/O Modules 3-9
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I/O Modules
3.2 ADAM-4012 Analog Input Module
The ADAM-4012 Analog Input Modules use a microprocessor-
controlled integrating A/D converter to convert sensor voltage or
current signals into digital data. The digital data are then translated into
either two’s complement hexadecimal format or percentage of full-scale
range (FSR) according to the module’s configuration. When prompted
by the host computer, the data are sent through a standard RS-485
interface.
The ADAM-4012 Analog Input Modules offer signal conditioning,
A/D conversion, ranging, and RS-485 digital communication functions.
They protect your equipment from power surges at the ground terminal
by providing opto-isolation of the A/D input and up to 3000 VDC
transformer based isolation.
Digital Inputs/Outputs
The ADAM-4012 also contains two digital outputs and one digital
input. Outputs are open-collector transistor switches that may be
controlled by the host computer. They can control solid-state relays,
which can be applied to heaters, pumps, and other electrical powered
equipment. The digital inputs may be read by the host computer and
used to sense the state of a remote digital signal.
Event counting
The event counter is connected to the Digital Input channel and can
be used to keep track of the total amount of external low-speed pulses.
Its accumulated maximal count is 65535. The number 65535 is held
even if the actual number of events exceeds 65535. The counter can be
read or reset to zero by the host computer.
Since the Event counter’s data are not stored in EEPROM, the event
counter is cleared and set to zero after every reset or start up of the
analog input module.
3-10 ADAM 4000 Series User’s Manual
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Chapter 3
Alarm signaling
Analog input modules include High and Low alarm functions. High
and Low alarm limits may be downloaded into the module’s EEPROM
by the host computer.
The alarm functions can be enabled or disabled remotely. When the
alarm function is enabled, both Digital Output channels are used to
indicate the High and Low alarm states. Digital Output channel 1 (DO1)
equals to High alarm state, and Digital Output channel 0 (DO0) equals
to Low alarm state. The High and Low alarm states can be read at any
time by the host computer.
Every A/D conversion will be followed by a comparison with the
High and Low limit. When the input value exceeds one of these limits,
the High or Low alarm state is set to ON.
There are two alarm mode options, Momentary and Latching.
If the alarm is in Latching mode, the alarm will stay on even when
the input value returns within the limits. It can also be turned OFF by
issuing a Clear Alarm command from the host computer. A Latching
alarm is cleared by the module when the opposite alarm is set.
When the module receives a value that is lower than the Low alarm
limit, it will clear the High alarm and turn the Low alarm ON.
When the alarm is in Momentary mode, the alarm will be turned OFF
as soon as the input value returns within the limits.
The arrangement of coupling High and Low alarm states with
Digital Output lines may be utilized to build ON/OFF controllers that
can operate without involving the host computer.
Chapter 3 I/O Modules 3-11
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I/O Modules
ADAM-4012 Analog Input Module
Figure 3-9 ADAM-4012 Analog Input Module
Accepts:
- Millivolt inputs ± 150 mV and ±500 mV
- Volt inputs: ±1 V, ±5 V and ±10 V
- Current input: ±20 mA (requires a 125 resistor)
Two digital output channels and one digital input channel are provided.
Depending on the module's configuration setting, it can forward the
data to the host computer in one of the following formats:
- Engineering units (mV, V, or mA)
- Percent of full-scale range (FSR)
- Two’s complement hexadecimal
3-12 ADAM 4000 Series User’s Manual
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Chapter 3
Application Wiring
Figure 3-10 ADAM-4012 Millivolt and Volt Input Wiring Diagram
Figure 3-11 ADAM-4012 Process Current Input Wiring Diagram
Figure 3-12 ADAM-4012 Digital Output Wiring Diagram
Used with SSR (HI-LO alarm)
Chapter 3 I/O Modules 3-13
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I/O Modules
Figure 3-13 ADAM-4012 Digital Input Wiring Diagram Used with TTL
Figure 3-14 ADAM-4012 Digital Input Wiring Diagram
Used with Dry contact
3-14 ADAM 4000 Series User’s Manual
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Chapter 3
3.3 ADAM-4013 RTD Module
The ADAM-4013 RTD Input Module supports one Pt or Ni RTD
input channel for temperature measurement. This module can accept
RTD sensors with two, three, or four wires. The module offers signal
conditioning, A/D conversion, ranging, and RS-485 digital
communication functions. It protects your equipment from power
surges at the ground terminal by providing opto-isolation of the A/D
input and up to 3000 VDC transformer based isolation.
Figure 3-15 ADAM-4013 RTD Input Module
Accepts:
-
Input from platinum and nickel RTDs
Depending on the module’s configuration setting, it can forward the
data to the host computer in one of the following formats:
- Engineering units (°C)
- Percent of full-scale range (FSR)
- Two’s complement hexadecimal
Chapter 3 I/O Modules 3-15
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I/O Modules
Application Wiring
Figure 3-16 ADAM-4013 RTD Inputs Wiring Diagram
3-16 ADAM 4000 Series User’s Manual
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Chapter 3
3.4 ADAM-4015 6-channel RTD Input Module
A RTD module is popularly used for temperature measurement.
Unlike the traditional design, the ADAM-4015 RTD Input Module
provides six RTD input channels for different types of RTD signal like
as Pt, Ni, Balco. It is an effective solution in industrial & building
automation. Normally, broken external wire will lead to an inaccurate
current value; however, the ADAM-4015 provides a broken wire
detecting function. Therefore, users can easily fix the broken wire
problems. This module can accept RTD sensors that have two or three
wires. After the V2.04 of ADAM-4015, ADAM-4015 can support the
“BA1 -200~600℃”
CODE
(IEC/JIS) 30/35
(IEC/JIS) 30/35
(IEC/JIS) 30/35
(IEC/JIS) 30/35
(IEC/JIS) 30/35
40
TYPE
Pt 100
RANGE
-50
0蚓
蚓
- 150
- 100
- 200
- 400
- 200
- 160
- 120
- 100
- 100
蚓
-
蚓
-
0蚓
蚓
-
0蚓
蚓
-
Pt 1000
BALCO 500
Ni
-200
-40
-30
-80
蚓
蚓
蚓
蚓
41
42
蚓
蚓
蚓
蚓
43
Ni
0蚓
蚓
Figure 3-17 ADAM-4015 6-channel RTD Input Module
Chapter 3 I/O Modules 3-17
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