Rs-422 Cable - Mitsubishi Electric GOT2000 Series Connection Manual

13.3.2

RS-422 cable

■1. Connection diagram
(1) RS-422 connection diagram 1)
(2) RS-422 connection diagram 2)
■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)
Set the terminating resistor setting switch of the GOT main unit to "Disable".
(b) For GT2505-V, GT21
Set the terminating resistor selector of the GOT main unit to "330 ".
For the procedure to set the terminating resistor, refer to the following.
➠
1.4.1 GOT connector specifications
GOT side
(connector terminal block)
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
SDA
SDB
RDA
RDB
SG
Unfastened cable color of
GT10-C R4-25P

Brown
Red
Orange
Yellow
Green
Blue
Purple
Black
White
Unfastened cable color of
GT21-C R4-25P5
Brown
Red
Orange
Yellow
Green
13.3 Connection Diagram
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