8.3.2
RS-422 cable
■1. Connection diagram
(1) RS-422 connection diagram 1)
(For PC3JG-P/PC3JG/PC3JD/PC3JD-C)
RS-232/RS-422
interface converter
*1
Terminating resistors should not be provided for a PLC and an RS-232/RS-422 interface converter which will be terminals.
*2
Connect FG grounding to the appropriate part of a cable shield line.
(For PC3J/PC3JL)
RS-232/RS-422
interface converter
*3
Terminating resistors should not be provided for a PLC and an RS-232/RS-422 interface converter which will be terminals.
*4
Connect FG grounding to the appropriate part of a cable shield line.
(For PC2JC/PC2J16P, PC2J16PR)
RS-232/RS-422
interface converter
*5
Terminating resistors should not be provided for a PLC and an RS-232/RS-422 interface converter which will be terminals.
*6
Connect FG grounding to the appropriate part of a cable shield line.
(2) RS-422 connection diagram 2)
RS-232/RS-422
interface converter
*1
Terminating resistors should not be provided for a PLC and an RS-232/RS-422 interface converter which will be terminals.
*2
Connect FG grounding to the appropriate part of a cable shield line.
PLC side
RD(+)
RD(-)
0V
FG
* 2
PLC side
RD(+)
RD(-)
0V
FG
* 4
PLC side
RD(+)
RD(-)
0V
FG
* 6
* 1
Link unit side
RD(+)
RD(-)
0V
FG
* 2
* 1
L1+
L1-
0V
* 2
* 3
L1+
L1-
0V
FG
* 4
* 5
+
-
0V
FG
* 6
* 1
Link unit side
+
-
0V
FG
* 2
8.3 Connection Diagram
* 1
PLC side
L1+
L1-
0V
* 3
PLC side
L1+
L1-
0V
FG
* 5
PLC side
+
-
0V
FG
* 1
+
-
0V
FG
8
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