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Unit Components and Functions Section 7-2
1,2,3... 1. RS-422/RS-485 Port
Connects to Temperature Controllers, Electronic Timer/Counters, and Dig-
ital Panel Meters.
RS-485 Connection Example
OMRON component
CPM2C-CIF21
OMRON component
RS-422 Connection Example
OMRON component
CPM2C-CIF21
OMRON component
SDA (− )
SDB (+)
RDA (− )
RDB (+)
RDA (− )
RDB (+)
SDA (− )
SDB (+)
RDA (−
)
RDB (+)
SDA (−)
SDB (+)
RxD
TxD
RxD
TxD
RDA (− )
RDB (+)
SDA (− )
SDB (+)
RDA (− )
RDB (+)