
1 Introduction
1-28
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
•
TERM: Terminating resistance ON/OFF switch
OFF:
Terminating resistance OFF
ON: Terminating
resistance
ON
•
WIRE: 2-wire or 4-wire selector switch
2: 2-wire; 4: 4-wire
Also perform other required processing, such as setting switches on the external device(s).
z
Connection Example for Protocol Macro, Serial Gateway, No-protocol Mode,
and Modbus-RTU Slave Mode
Also perform other required processing, such as setting switches on the external device(s).
OFF
2
ON
4
TERM
WIRE
Serial Communications Unit
Serial Communications Unit
NJ-series
NJ-series
RS-232C
NT-AL001
Terminating resistance
ON, 5-V power
supply required
Terminating resistance
ON
RS-422A
/485
RS-232C
RS-422A
/485
B500-AL001
Serial Communications
Unit
Terminating
resistance ON
General-purpose
external device
RS-232C
RS-422A/485
General-purpose
external device
General-purpose
external device
Terminating
resistance ON
General-purpose
external device
Содержание CJ1W-SCU22
Страница 192: ...4 Using Protocol Macros 4 56 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 250: ...6 No protocol Mode 6 22 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 460: ...A Standard System Protocol R 126 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 473: ...Index 1 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494 I Index...