Mitsubishi Electric GOT2000 Series, Connection Manual

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6.3 Connection Diagram
(10) RS-422 connection diagram 10)
*1 The signals RSA, RSB, CSA, and CSB are not provided for . Return connection is not required.
(11) RS-422 connection diagram 11)
*1 The signals RSA, RSB, CSA, and CSB are not provided for . Return connection is not required.
■2.
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
■3. Connecting terminating resistors
(1) GOT side
When connecting a PLC to the GOT, a terminating resistor must be connected to the GOT.
(a) For GT27, GT25(Except GT2505-V), GT23
Set the terminating resistor setting switch of the GOT main unit to "Disable".
(b) For GT2505-V, GT21
Set the terminating resistor selector to "330 Ω ".
For the procedure to set the terminating resistor, refer to the following.
➠ 1.4.3 Terminating resistors of GOT
GOT side
(terminal block) Q170MIOCBL1M-B side
1
6
2
7
5
3
8
4
9
SDA
SDB
RDA
RDB
SG
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
RSA *1
RSB
*1
CSA
*1
CSB
*1
GOT side
(terminal block)
United wire color of
Q170MIOCBL1M-A
SDA
SDB
RDA
RDB
SG
Yellow(Dot mark:Black)
Yellow(Dot mark:Red)
Pink(Dot mark:Black)
Pink(Dot mark:Red)
White(Dot mark:Black)
White(Dot mark:Red)
RSA
*1
RSB
*1
CSA
*1
CSB
*1