Omron CS Series Operation Manual page 243

Troubleshooting Procedures
Transmission Problems
Transmission Problems occurred.
Is send
Y
processing not
finishing?
N
Read protocol status using the
FINS command READ
PROTOCOL STATUS.
Have any failures
Y
to reach the destination
been counted in the ICMP
status?
N
Read controller status using
the FINS command READ
CONTROLLER STATUS.
Y
Have any send
errors occurred?
N
Check the reception status
on the remote node.
Return to the procedure for
general problems.
Return to the procedure
for general problems.
The UDP socket specified by the
destination UDP port number in the
send parameters is not opening at
the remote node.
There may be too much traffic on the
network and UDP packets may be
getting corrupted. Use TCP sockets or
adjust the network to reduce
excessive traffic.
Section 8-4
217