7.3
Connection Diagram
The following diagram shows the connection between the GOT and the PLC.
7.3.1
RS-232 cable
■1. Connection diagram
(1) RS-232 connection diagram 1)
*1
Some MODBUS/RTU master equipment require the control line (CS, RS, etc.) to be controlled.
Make sure to connect the cables and wires as described in the MODBUS/RTU master equipment manual.
(2) RS-232 connection diagram 2)
*1
Some MODBUS/RTU master equipment require the control line (CS, RS, etc.) to be controlled.
Make sure to connect the cables and wires as described in the MODBUS/RTU master equipment manual.
■2. Precautions when preparing a cable
(1) Cable length
The length of the RS-232 cable must be 15m or less.
(2) GOT side connector
For the GOT side connector, refer to the following.
➠
1.4.1 GOT connector specifications
(3) MODBUS equipment side connector
Use the connector compatible with the MODBUS/RTU master equipment side module.
For details, refer to the MODBUS/RTU master equipment user's manual.
GOT side(slave)
1
CD
RD(RXD)
2
3
SD(TXD)
4
ER(DTR)
SG
5
6
DR(DSR)
7
RS(RTS)
CS(CTS)
8
9
NC
GOT side(slave)
SD
RD
ER
DR
SG
RS
CS
MODBUS /RTU master equipment side
-
TxD
RxD
-
SG
-
-
-
-
MODBUS /RTU master equipment side
RxD
TxD
-
-
SG
-
-
7.3 Connection Diagram
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