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63.3 Connection Diagram
The following diagram shows the connection between the
GOT and the PLC.
63.3.1 RS-232 cable
Connection diagram
RS232 connection diagram 1)
Connector conversion
box
side
1
CD
2
RD(RXD)
SD(TXD)
3
4
ER(DTR)
SG
5
DR(DSR)
6
7
RS(RTS)
CS(CTS)
8
NC
9
*1
Some MODBUS equipment require the control line (CS, RS,
etc.) to be controlled.
Make sure to connect the cables and wires as described in
the MODBUS equipment manual.
RS232 connection diagram 2)
External cable
GT11H-C-37P side
FG(Shield)
1
4
RD(RXD)
SD(TXD)
2
ER(DTR)
3
10
SG
DR(DSR)
5
RS(RTS)
6
7
CS(CTS)
-
8
9
-
RS232 connection diagram 3)
External cable
GT11H-C side
FG(Shield)
Shield
GY/R (A)
RD(RXD)
SD(TXD)
W/R (A)
ER(DTR)
W/BK (A)
PK/R (A)
SG
DR(DSR)
GY/BK (A)
O/R (A)
RS(RTS)
O/BK (A)
CS(CTS)
-
Y/R (A)
Y/BK (A)
-
Precautions when preparing a cable
(1) Cable length
The total distance (between the GOT and a controller)
of RS-232 cable must be 6m or less.
(2) Connector conversion box side connector
For the connector conversion box side connector, refer
MODBUS
to the following.
*1
equipment side
-
(3) External cable side connector
TxD
For the connector specifications of the external cable
RxD
side, refer to the following.
-
SG
(4) MODBUS equipment side connector
-
Use the connector compatible with the MODBUS
-
equipment side module.
-
For details, refer to the MODBUS equipment user's
manual.
-
MODBUS
equipment side
-
TXD
RXD
-
SG
-
-
-
-
-
MODBUS
equipment side
-
TXD
RXD
-
SG
-
-
-
-
-
63. MODBUS(R)/RTU CONNECTION
6.6 Connector Conversion Box
8.2 External Cable, Relay Cable
63.3 Connection Diagram
56
57
58
59
60
61
62
63
63 - 3
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