Omron V720 Series Operation Manual page 114

Troubleshooting
Host Communications Check Flowchart
Start the TS command
from the host.
Start
Is the response
normal?
Is the communications
frame OK?
Are the
communications cable
connectors wired OK?
Is the host working
normally?
Replace the Controller
Section 6-5
Revise the communications
frame correctly.
Wire the connectors
correctly.
Revise the host program
correctly or replace the
host.
6-9