Mitsubishi Electric GOT2000 Series Connection Manual page 231

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(g)
RS-422 connection diagram 7)
*1
The signals RSA, RSB, CSA, and CSB are not provided for
(h)
RS-422 connection diagram 8)
*1
The signals RSA, RSB, CSA, and CSB are not provided for
(2) Precautions when preparing a cable
(a)
Cable length
The distance between the GOT and the PLC of connection diagram 1), 2) and 3) must be 200 m or less.
The length of the RS-422 connection diagram 4) must be 50m or less.
(b)
GOT side connector
For the GOT side connector, refer to the following.
1.4.1 GOT connector specifications
(c)
OMRON PLC side connector
Use the connector compatible with the OMRON PLC.
For details, refer to the OMRON PLC user's manual.
(3) Setting terminating resistors
(a)
GOT side
• For GT27, GT25(Except GT2505-V), GT23
Set the terminating resistor setting switch of the GOT main unit to "Disable".
• For GT2505-V, GT21
Set the terminating resistor selector to "330 ".
For details of terminating resistor settings, refer to the following.
1.4.3 Terminating resistors of GOT
(b)
OMRON PLC side
When connecting an OMRON PLC to a GOT, a terminating resistor must be set to the OMRON PLC.
OMRON PLC user's Manual
GOT side
(terminal block)
SDA
SDB
RDA
RDB
SG
* 1
RSA
* 1
RSB
* 1
CSA
* 1
CSB
GOT side
(terminal block)
SDA
SDB
RDA
RDB
SG
* 1
RSA
* 1
RSB
* 1
CSA
* 1
CSB
OMRON PLC side
8
RDB
6
RDA
2
SDB
1
SDA
4
RS
5
CS
.
OMRON PLC side
RDB+
RDA-
SDB+
SDA-
FG
.
4.2 Serial Connection
4
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