Omron V530-R150E-2 Operation Manual page 222

Troubleshooting
Signals cannot be output externally.
RS-232C Communications Errors
No communications are possible.
The Unit operates well initially, but after a while there is no response from
the V530-R150.
210
The signal line is disconnected.
The V530-R150 is not in MON (monitor) or RUN mode.
The trigger signal has not been input.
The cables are not correctly wired.
The signal line is disconnected.
The V530-R150 is not in RUN mode.
The cables are not correctly wired.
The communications specifications do not match those of the
external device.
The communications mode was not selected under SYS/
Communications/RS-232C .
The V530-R150 is not RUN mode.
The reception buffer on the external device (e.g. computer) is
full. Check that settings allow the data to be properly received.
Section 9-3