Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 146

RS-232C and RS-422A/485 Wiring
Serial Communications
Board/Unit
Pin
Signal
2 SD
3 RD
4 RS
5 CS
6 5V
7 DR
ER
8
9 SG
Hood FG
• With NT-AL001-E RS-232C/RS-422 Link Adapter
RS-232C
Shield
(See note.)
Note 1. The following cables are available for this connection.
Length
70 cm
2 m
It is recommended that one of these cables be used to connect the RS-
232C port on the Serial Communications Board or Unit to the NT-AL001-E
RS-232C/RS-422 Link Adapter. The recommended wiring for these cables
is shown below.
SYSMAC PLC
Pin
Signal
1 FG
SD
2
RD
3
4 RS
CS
5
5V
6
DR
7
8 ER
9 SG
Hood
FG
2. The XW2Z-070T-1 and XW2Z-200T-1 Connecting Cables for the NT-
AL001-E Link Adapter uses special wiring for the DTS and RTS signals.
Do not use these signals with other devices; they may be damaged.
3. The Hood (FG) is internally connected to the ground terminal (GR) on the
Power Supply Unit via the CPU Rack or Expansion Rack. Therefore, FG is
grounded by grounding the ground terminal (GR) on the Power Supply
Unit.
NT-AL001-E
Pin
Signal Signal Pin
3
RD SDA 4
2 SDB 3
SD
4 RS RDA 6
5 CS RDB 5
5V GRD
6 1
7 DR
8
ER
9
SG
FG
Hood
Model
XW2Z-070T-1
XW2Z-200T-1
Shield
Section 3-4
Remote device
RS-422
Signal
RDA
RDB
SDA
SDB
Remote device
Signal
RDA
RDB
SDA
SDB
FG
NT-AL001-E
(internal)
Pin
Signal
Arrows indicate
signal directions
Not used. 1
RD
3
SD
2
RS 4
CS
5
Loopback
5V
6
DR 7
ER 8
Loopback
SG 9
Hood
FG
117