Omron CJ1W-SCU32 Operation Manual page 374

A Standard System Protocol
CJ1W-SCU@1-V1
Serial Communications Board/Unit
Abbreviation
Set the 2-/4-wire switch
to the 2-wire setting.
Turn ON the terminat-
ing resistance switch.
Note SYSMAC BUS Wired Remote I/O devices cannot be connected.
CJ1W-SCU@2
Serial Communications Board/Unit
SDA
SDB
FG
Set the 2-/4-wire switch
to the 2-wire setting.
Turn ON the terminating
resistance switch.
R-40
Intelligent Signal Processor
Turn OFF all terminal block
switches except at the end-station.
RS-485
Ab-
Pin
brevi-
Shell No.
ation
1
2
Shielded
wire
Shielded wire
Intelligent Signal Processor
Turn OFF all terminal block
RS-485
switches except at the end-station.
RS-485
Pin
Abbreviation
Abbreviation
No.
3
19
4
18
5
Shielded
wire
Shielded wire
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Terminal
block
220 Ω
switch
+
Intelligent Signal
Processor end-station
Terminal
Ab-
Ter-
block switch ON
220 Ω
brevi
minal
ation
+
Terminal block switch ON at the end station.
47k
Terminal
220 Ω
block witch
4.7k
4.7k
47k
6.8V
Intelligent Signal Processor end-station
RS-485
Terminal block
Pin
220 Ω
switch ON
Abbreviation
No.
19
18
Terminal block switch ON
at the end station.
SN751177N or equivalent
SN751177N
5V
or equivalent