Troubleshooting By Symptom - Mitsubishi Electric MELSEC iQ-R Series User Manual

4.4

Troubleshooting by Symptom

This section describes troubleshooting when a data link cannot be performed with the target station regardless of no error
occurring in the RJ71GN11-T2.
If an error has occurred in the RJ71GN11-T2, identify the error cause using the engineering tool. ( Page 169 Checking the
Network Status)
• Cyclic transmission failed ( Page 184 Cyclic transmission failed)
• Transient transmission failed ( Page 189 Transient transmission failed)
• Station is disconnected from the network ( Page 194 Station is disconnected from the network)
• Station is repeatedly disconnected and reconnected ( Page 194 Station is repeatedly disconnected and reconnected)
• Communications are unstable ( Page 196 Communications are unstable)
• SLMP communications failed ( Page 196 SLMP communications failed)
• The control CPU of the local station cannot be synchronized time ( Page 197 The control CPU of the local station
cannot be synchronized time)
• Communications with Ethernet devices failed ( Page 198 Communications with Ethernet devices failed)
• Although the data link is normal, communications for the link device failed ( Page 198 Although the data link is normal,
communications for the link device failed)
• Desynchronization with CC-Link IE TSN network synchronous communication function ( Page 199 Desynchronization
with CC-Link IE TSN network synchronous communication function)
• Safety communications failed ( Page 199 Safety communications failed)
• Cannot be monitored using the CC-Link IE TSN Communication Software ( Page 200 Cannot be monitored using the
CC-Link IE TSN Communication Software)
• The network map is not displayed correctly ( Page 200 The network map is not displayed correctly)
• CC-Link IE TSN Class A device does not perform data link ( Page 201 CC-Link IE TSN Class A device does not
perform data link)
• The co-recording function does not operate properly ( MELSEC iQ-R System Recorder Co-recording Function
Reference Manual)
4 TROUBLESHOOTING
4.4 Troubleshooting by Symptom
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