User's Manual
7. COMPUTER LINK CONNECTION
7.3 Connection Diagram
7 - 17
1
PREPARATORY 
PROCEDURES FOR 
MONITORING
2
DEVICE RANGE 
THAT CAN BE SET
3
ACCESS RANGE 
FOR MONITORING
4
HOW TO MONITOR 
REDUNTANT 
SYSTEM
5
BUS CONNECTION
6
DIRECT 
CONNECTION TO 
CPU
7
COMPUTER LINK 
CONNECTION
8
ETHERNET 
CONNECTION
7.3.2 RS-422 cable
 Connection diagram
 Precautions when preparing a cable
(1) Cable length
The length of the RS-422 cable must be 1200m or less.
(2) GOT side connector
For the GOT side connector, refer to the following.
1.4.1 GOT connector specifications
RS422 connection diagram 1)
(For GT16, GT15, GT14, GT12, GT11, GT105 , GT104 ), Serial Multi-Drop Unit
RS422 connection diagram 2)
(For GT16)
GOT side
PLC side
1
2
3
4
5
6
7
8
9
-
SDA
RDA
RSA
CSA
SG
SDB
RDB
RSB
CSB
FG
RDA
SDA
-
-
SG
RDB
SDB
-
-
FG
R
GOT side
PLC side
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Shell
SDA1(TXD1+)
SDB1(TXD1-)
RDA1(RXD1+)
RDB1(RXD1-)
SDA2(TXD2+)
SDB2(TXD2-)
RDA2(RXD2+)
RDB2(RXD2-)
RSA(RTS+)
RSB(RTS-)
CSA(CTS+)
CSB(CTS-)
SG
NC
RDA
RDB
SDA
SDB
SG
FG
R
RS422 connection diagram 3)
(For GT1030, GT1020)
RS422 connection diagram 4)
(For GT1030, GT1020)
GOT side
(terminal block)
PLC side
SDA
RDA
RSA
CSA
SG
SDB
RDB
RSB
CSB
RDA
SDA
-
-
SG
RDB
SDB
-
-
FG
R
GOT side
(terminal block)
Untied wire color of
GT10-C□□□R4-25P
Brown
Red
Orange
Yellow
Green
Blue
Purple
Black
White
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB










