Toshiba RS 485 User Manual

PROGRAMMABLE CONTROLLER  
PROSEC T1  
RS232C/RS485  
MULTI-DROP ADAPTER  
CU111  
n
USER’S MANUAL  
T1 connection cable  
T1 side connector  
Type identification  
Status LEDs  
RS485 Terminal block  
1
CU111 Specifications  
1.Overview  
Connecting the RS232C/RS485 multi-drop adapter (CU111) to the T1’s programmer port, you  
can use the RS485 computer link function.  
By this function, long-distance and one -to- N communications become available.  
2.Specifications  
(1)Function specification  
Item  
Specification  
DIN - 8pin (T1 programmer port connector)  
Removable terminal block 6pin  
Connection  
RS232C  
RS485  
Length of T1 connection cable 30cm  
Status LEDs  
Isolation  
Power Supply  
Current consumption  
Size  
3 (Refer to the following table)  
Non isolation between RS232C and RS485  
5Vdc from T1 main unit  
75mA  
30mm(W) ´ 90mm(H) ´ 75mm(D) (except cable)  
(2)Transmission specification  
Item  
Specification  
Conforms to RS232C (T1 side)  
Conforms to RS485 (Host side)  
30cm (between T1 and adapter)  
Max. 1km (RS485 )  
Interface  
Transmission distance  
Transmission speed  
Framing  
9600 bps  
Start bit  
Dta bit  
Parity  
Stop bit  
Max. 32  
1bit (Fixed)  
8bits (Fixed)  
Odd parity/ Non (automatic detection)  
1bit (Fixed)  
Number of stations  
(3)RS485 transmission cable  
Shieled twisted cable which conforms to the RS485, should be used for communication  
cable. It’s recommended that 0.9mm diameter or more, 3 pairs or more cables are used.  
(4)Operation Status LEDs  
Name  
(color)  
POWER  
(green)  
RXD  
Direction  
LED Status  
Lit  
Not Lit  
5V power is normal and  
connected to T1  
Data receiving  
(RXD = 0)  
5V power is not normal.  
Data not receiving  
(RXD = 1)  
Host ® T1  
(green)  
TXD  
(green)  
Data transmitting  
(TXD = 0)  
Data not transmitting  
(TXD = 1)  
T1 ® Host  
3
CU111 Installation  
3.Installation  
1.Installing the adapter  
Either DIN rail or screw mounting is available.  
The length of the T1 connection cable is 30cm. Consider the cable length when installing  
the multi-drop adapter.  
Please read the installation section of the T1 user’s manual.  
Mounting  
(Mounting on a DIN rail)  
(1)Hang the adapter on the DIN rail at first.  
Next, push the adapter and hook the  
DIN rail.  
(2)Please check that the DIN rail bracket  
Adapter  
DIN rail  
(35mm)  
hooks the DIN rail.  
DIN rail bracket  
(Screw mounting)  
Attach the metal fittings for screw to the DIN rail bracket and screw securely using the M3  
screws.  
30mm  
2-M3  
23mm  
adapter  
15mm  
fitting for screw  
2.Connecting the dedicated cable  
Turn off the power of the T1 main unit. Connect the T1 side connector to the T1’s  
programmer port and RS485 cables to the terminal block.  
Do not connect or remove the cables while power to the T1 is on.  
T1 dedicated cable  
Terminal block  
RS485  
Programmer  
port  
T1  
CU111  
4
CU111 Configuration  
4.System configuration example  
[ one-to-one configuration ]  
RS232C  
RS485  
CU111  
IN  
PROSEC  
TOSHIBA  
MDR16  
T1  
OUT  
Operator interface unit  
T1 main unit : T1-16/28/40  
[ one-to-N configuration ]  
RS232C  
ADP-  
6237B  
RS485  
CU111  
RS232C  
CU111  
RS232C  
IN  
IN  
PROSEC  
PROSEC  
TOSHIBA  
MDR16  
TOSHIBA  
MDR16  
T1  
T1  
OUT  
OUT  
¼¼¼¼¼¼¼¼  
T1 main unit : T1-16/28/40  
T1 main unit : T1-16/28/40  
Other T-sereis PLC  
5.Circuit configuration  
Multi-drop adapter  
T1  
RS485  
Terminal  
Block  
Connection  
Cable  
RS232C Transceiver  
RS485 Transceiver  
RS485  
Gate  
Controller  
RX1  
TXA  
TXB  
CRS1  
RTS  
TX1  
RXA  
TRM  
R
RXB  
SG  
P5  
Supervisor of  
Power Suplly  
GND/SG  
TTermination registors : 1/2W 120W  
5
CU111 connection  
6.Computer Link (RS485) interface  
(1)Computer Link (RS485) signal name and pin assignment  
Pin No. Signal Name  
Function  
TXA  
TXB  
RXA  
TRM  
RXB  
SG  
1
2
3
4
5
6
1
2
3
4
5
6
TXA  
TXB  
RXA  
TRM  
RXB  
SG  
CU111®RS485 (In phase signal)  
CU111®RS485 (Reverse signal)  
CU111¬ RS485 (In phase signal)  
Termination  
CU111¬ RS485 (Reverse signal)  
Signal Ground  
(2)Computer Link (RS485) interface connection  
Sheilded  
twisted-paired cable  
TXA  
RXA  
RXB  
1
TXD  
RXD  
TXB  
2
RXA  
TXA  
TXB  
3
RXD  
TXD  
SG  
4
TRM  
R
5
RXB  
SG  
6
RS232C/RS485  
Multi-drop adapter  
CU111  
Host Equipment  
RS485 Interface  
Short between RXA(Pin No.3) and TRM(Pin No.4) for termination of one-to-one configuration  
at CU111. Refer to the next page.  
Note  
¬ Use the shielded twisted-paired cable for noise immunity and ground the cable shield at  
one end.  
Connect SG (Signal Ground) each other.  
® The adapter does not have the frame ground (FG) terminal, so please ground directly.  
¯ Please make the program transmitting again.  
6
CU111 Connection  
(3)Computer Link signal and connect termination registors  
[ one-to-one configuration ]  
RS485  
RS232C  
CU111  
RS232C  
TXA  
TXB  
RXA  
TRM  
RXB  
SG  
TXA  
TXB  
RXA  
TERM  
RXB  
SG  
IN  
PROSEC  
TOSHIBA  
MDR16  
T1  
OUT  
HOST  
T1 main unit : T1-16/28/40  
Connect cables according to the above diagram.  
Short between RXA and TRM(TERM) for termination at the end of both CU111 and ADP-  
6237B.  
[ one-to-N configuration ]  
TXA  
RS232C  
R
TXB  
RXA  
TERM  
R
RXB  
HOST  
SG  
ADP-6237B  
R
R
T T R T R S  
X X X R X G  
A B A M B  
T T R T R S  
X X X R X G  
A B A M B  
T T R T R S  
X X X R X G  
A B A M B  
CU111  
RS232C  
IN  
IN  
IN  
PROSEC  
PROSEC  
PROSEC  
TOSHIBA  
MDR16  
TOSHIBA  
MDR16  
TOSHIBA  
MDR16  
T1  
T1  
T1  
OUT  
OUT  
OUT  
Connect cables according to the above diagram.  
Connect termination registor 1/2W-220W between RXA and TXB, and between TXA and  
TXB at both terminal stations.  
7
TOSHIBA INTERNATIONAL (EUROPE) LTD.  
1 Roundwood Avenue  
Stockley Park, Uxbridge  
TOSHIBA INTERNATIONAL  
CORPORATION PTY. LTD.  
2 Morton Street, Parramatta  
N.S.W. 2150, AUSTRALIA  
Middlesex, ENGLAND UB11 1AR  
Tel: 0181-756-6000  
Fax: 0181-848 4969  
Tel: 02-9768-6600  
Fax: 02-9890-7542  
TOSHIBA INTERNATIONAL CORPORATION  
Industrial Division  
13131 West Little York Road  
TOSHIBA CORPORATION  
Industrial Equipment Department  
1-1, Shibaura 1-chome, Minato-ku  
Tokyo 105, JAPAN  
Houston, TX. 77041, U.S.A.  
Tel: 713-466-0277  
Fax: 713-466-8773  
Tel: 03-3457-4900  
UG-TS01***-E011  
1997-02(2)  
8

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