C Err Led Turns On - Mitsubishi Electric MELSEC iQ-R Series User Manual

• Remarks
The error code when ERR LED turns ON is stored in the buffer memory shown below.
Error factor
Modern function error
Monitoring device error
Predefined protocol function error

C ERR LED turns ON

Symptom Cause
C ERR LED turns ON. An error occurred during the
on-demand execution.
C24 detected an error while
transmitting data.
C24 detected an error while
receiving data.
• Remarks
The error code when C ERR LED turns ON is stored in the buffer memory shown below.
Error factor
On-demand execution error
Data transmission error
Data reception error
Modern function error
MC protocol send error
Monitoring device error
Predefined protocol function error
Error code storage buffer memory
Address
CH1
Un\G545
Un\G8709
Un\G16450
Corrective action
• Read the error code from the buffer memory, and check the
error contents and correct the designation contents.
• Read the error code from the buffer memory, and take the
corrective action corresponding to the error contents.
• Read the error code from the buffer memory, and take the
corrective action corresponding to the error contents.
Error code storage buffer memory
Address
CH1
Un\G598
Un\G599
Un\G600
Un\G545
Un\G602
Un\G8709
Un\G16450
CH2
Un\G8965
Un\G16466
CH2
Un\G614
Un\G615
Un\G616
Un\G618
Un\G8965
Un\G16466
27.3 Troubleshooting by Symptom
Name
Modern function error
Programmable controller CPU
monitoring function execution result
Predefined protocol function error
code
MC Non Bi Pd

   
   
Name
On-demand execution results
Data transmission result
Data reception result
Modern function error code
MC protocol send error code
Programmable controller CPU
monitoring function execution result
Predefined protocol function error
code
27 TROUBLESHOOTING
465
27