Cpm2C-Cif11 Rs-422/Rs-232C Adapter Unit - Omron CPM2C Operation Manual

Unit Components
2-2-8

CPM2C-CIF11 RS-422/RS-232C Adapter Unit

3. Terminating resistance switch
1,2,3...
Front View
1. RS-422/485 port
2. RS-232C port
5. Connector
Note Do not use the CPM2C-CIF11 with any PC other than the CPM2C.
1. RS422/485 Port
Used to connect to host computers, or standard external devices.
Note The maximum line length is 500 m.
2. RS-232C Port
Used to connect to the RS-232C interface of a personal computer or Pro-
grammable Terminal (operator interface).
Right Side
Terminal Arrangement
RDA
Receive data (input)
RDB+
SDA
Send data (output)
SDB+
NC
Connector Pin Arrangement
Section 2-2
4. RS-485 interface switch
79