Mitsubishi Electric GT1685 Connection Manual page 247

RS-422 connection diagram 5)
GOT side
(terminal block)
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
RS-422 connection diagram 6)
GOT side
2
7
1
6
5
3
4
8
9
RS-422 connection diagram 7)
GOT side
(terminal block)
RDA
RDB
SDA
SDB
SG
RSA
CSA
RSB
CSB
United wire color of
Q170MIOCBL1M-A
Yellow(Dot mark:Black)
Yellow(Dot mark:Red)
Pink(Dot mark:Black)
Pink(Dot mark:Red)
White(Dot mark:Black)
White(Dot mark:Red)
PLC side
(terminal block)
SDA
SDB
RDA
RDB
SG
PLC side
(terminal block)
SDA
SDB
RDA
RDB
SG
RS-422 connection diagram 8)
GOT side
RDA
2
RDB
7
SDA
1
SDB
6
RSA
3
RSB
8
CSA
4
CSB
9
SG
5
FG
-
*1 Set the terminating resistor of the PLC side to "330Ω "
RS-422 connection diagram 9)
GOT side
(terminal block)
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
*1 Set the terminating resistor of the PLC side to "330Ω ".

Precautions when preparing a cable
(1) Cable length
The length of the RS-422 cable must be within the
maximum distance specifications.
(2) GOT side connector
For the GOT side connector, refer to the following.
1.4.1 GOT connector specifications

Connecting terminating resistors
(1) GOT side
When connecting a PLC to the GOT, a terminating
resistor must be connected to the GOT.
(a) For GT16, GT15, GT12
Set the terminating resistor setting switch of the
GOT main unit to "Disable".
(b) For GT14, GT11, GT10
Set the terminating resistor selector to "330 ".
For the procedure to set the terminating resistor,
refer to the following.
1.4.3 Terminating resistors of GOT
6. DIRECT CONNECTION TO CPU
6.3 Connection Diagram
1
*1
PLC side
(terminal block)
SDA
SDB
RDA
2
RDB
RDR
SG
3
*1
PLC side
(terminal block)
RDA
4
RDB
SDA
SDB
SG
5
6
7
8
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