Mitsubishi Electric GOT2000 Connection Manual page 174

(b) RS-422 connection diagram 2)
GOT side
FG
-
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
CSA
4
RSB
8
CSB
9
(c) RS-422 connection diagram 3)
GOT side
SDA
1
SDB
6
RDA
2
RDB
7
RSA
3
CSA
4
SG
5
RSB
8
CSB
9
FG
-
(d) RS-422 connection diagram 4)
GOT side
SDA
1
SDB
6
RDB
7
RDA
2
RSA
3
CSA
4
SG
5
RSB
8
CSB
9
FG
-
4 - 20
4. CONNECTION TO OMRON PLC
4.2 Serial Connection
OMRON PLC side
FG
-
RDB
1
RDA
6
SDB
5
SDA
9
SG
3
OMRON PLC side
RDB
8
RDA
6
SDB
2
SDA
1
RS
4
CS
5
OMRON PLC side
RDB+
RDA-
SDA-
SDB+
FG
(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.
(1) Setting terminating resistors
(a) GOT side
• For GT16, GT15, GT12
Set the terminating resistor setting switch of the
GOT main unit to "Disable".
• For GT14, GT11, GT10
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