Omron NX1P2 series

3 Configuration Units
3 - 22
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
 Communications Status Indicator
 RS-232C Terminal Block
As the Option Board does not have a 5 V power supply terminal, it cannot be connected to external
converters such as an CJ1W-CIF11 and NT-AL001, or an NV3W-M20L Programmable Terminal.
The terminal block is not removable.
3-3-3 Part Names and Functions
RS-232C Option Board (NX1W-CIF01)
Indicator Color Status Description
COMM Yellow Lit. Communications are being performed.
Not lit. Communications are not performed.
Abbrevia-
tion
Signal name I/O
SG0 Signal grounding ---
RD Receive data Input
SD Send data Output
ER Data terminal ready Output
SG1 Signal grounding ---
DR Data set ready Input
RS Send request Output
CS Data can be sent Input
SHLD Shield ---
COMM
Communications status indicator
RS232C terminal block
SG0 RD SDER SG1 DR RS CS SHLD
SG0 RD SD ER SG1 DR RS CS SHLD