Omron V680-CA5D01-V2

RFID System
User’s Manual
SECTION 6
Troubleshooting
SECTION 6
Troubleshooting
249
Host Communications Check Flowchart
START
YES
NO
YES
Is the host
device operating
normally?
NO
YES
Replace the Controller.
Correct the host
program or replace the
host device.
NO
NO
YES
NO
YES
YES
NO
OK
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
YES
NO
YES
Is there a
response?
Is the connector
wiring OK?
Correct the
connector wiring.
Are the
communications
conditions OK?
Change the
communications
conditions to match.
Change the
communications
conditions to match.
Are the
communications
conditions OK?
Does the monitor
display show 10,
11, or 12?
Does the monitor
display show 13?
Does the monitor
display show 14?
Does the monitor
display show 18?
Is the noise
environment OK?
Implement noise
countermeasures.
Is the FCS
calculation correct?
Calculate the FCS
correctly.
Is the command
format correct?
Send with the correct
command format.
Is the command
longer than the
specified length?
Reduce the command
length to within the
specified range.