Mitsubishi Electric MELSEC iQ-R Series User Manual page 124

UCMM message communications cannot be performed
The following table lists the actions to be taken if UCMM message communications cannot be performed.
Check item
Are the settings of the commands to request correct?
Has communication start processing been performed
correctly with 'EtherNet/IP communication start request'
(Y10)?
5 TROUBLESHOOTING
122
5.5 Troubleshooting by Symptom
Action
Check the value set in 'UCMM data link request command' (starting with Un\G393280).
• Check that 'EtherNet/IP communication start request' (Y10) is on.
• If 'EtherNet/IP data link continuation specification request' (Un\G16634) is set to 16 (continue
EtherNet/IP communication), turn 'EtherNet/IP communication start request' (Y10) on again.