Omron V720S Series Operation Manual page 130

Troubleshooting
Host Communications Check Flowchart
Start
Start the TS command
from the host.
Is the response
6-8
normal?
Is the communications
frame OK?
Are the
communications cable
connectors wired OK?
Is the host working
normally?
Replace the Reader/Writer
Section 6-5
Revise the communications
frame correctly.
Wire the connectors
correctly.
Revise the host program
correctly or replace the host.