Omron C200HX Operation Manual page 456

The Protocol Macro Function
RS-422/485 Connection
(One-to-N)
(RS-232C)
Port B
(RS-422/485)
Port A
Connection Cable Wiring
438
An RS-422/485 connection allows 2 or more devices to be connected (one-to-N
connection) with a maximum cable length of 500 m. The RS-422/485 connection
is also useful for distant one-to-one connections.
RS-232C ↔ RS-422/485 Adapter
RS-232C
15 m
Temperature Controller with
RS-422/485 communications
Temperature Controller with
RS-422/485 communications
Temperature Controller with
RS-422/485 communications
RS-422/485
Temperature Controller with
RS-422/485 communications
500 m max.
The following diagrams show the cable wiring used with Protocol Macro function
communications.
RS-422/485 Adapter Connection (NT-AL001)
AL001
RS-422/485
Conversion
Adapter
NT-AL001
Temperature Controller with
RS-422/485 communications
Temperature Controller with
RS-422/485 communications
Temperature Controller with
RS-422/485 communications
Temperature Controller with
RS-422/485 communications
500 m max.
C200HX/HG/HE
Section 8-6