Troubleshooting On Data Logging, Event Logging, And Reports - Mitsubishi Electric MELSEC iQ-R Series User Manual

Troubleshooting on data logging, event logging, and reports

Symptom
Cannot sample data in each sequence
scan.
Unable to sample data with the specified
data sampling interval. (High speed
sampling)
Unable to sample data with the specified
data sampling interval. (General sampling)
Unable to perform data logging with the
specified data sampling interval.
Data is not logged at the specified data
sampling interval. (Immediately after file
switching)
Check point
Is the 'high speed sampling failure' (X1A) ON?
Check the power supply status. (Has a momentary
power failure occurred?)
Is the 'high speed sampling failure' (X1A) ON?
Check the power supply status. (Has a momentary
power failure occurred?)
Is the 'General sampling delay occurrence' (X1E) ON?
(Page 315 General sampling delay time area
(Un\G800 to 805))
Has the high speed data logger module's time been
changed by the time synchronization function?
Is the 'high speed sampling failure' (X1A) ON?
Has the high speed data logger module's time been
changed by the time synchronization function?
Is the 'processing overload occurrence' (X1B) ON?
Has an error occurred in data logging?
Has a communication error occurred with the access
target CPU?
Check the power supply status. (Has a momentary
power failure occurred?)
Was a saved file deleted from FTP or Configuration
Tool after the logging was stopped?
Corrective action
• Decrease the number of the specified settings for
high speed sampling.
• Set a constant scan to the CPU module. (Page
344 Processing Time)
• Correct the power supply status.
• Set the data sampling interval longer than the
following time.
(Page 344 Processing Time)
• Decrease the number of the specified settings for
high speed sampling or change the data sampling
interval.
• Correct the power supply status.
• Decrease the number of the specified settings for
general sampling.
• Organize data logging settings, event logging
settings, and report settings for each access target
CPU.
• Reduce the timing of the time synchronization. (Do
not synchronize the time while the system is in
operation.) (Page 132 Time synchronization
setting)
• Decrease the number of the specified settings for
high speed sampling.
• Increase the data sampling interval of high speed
sampling.
• Set a constant scan to the CPU module. (Page
344 Processing Time)
• Reduce the timing of the time synchronization. (Do
not synchronize the time while the system is in
operation.) (Page 132 Time synchronization
setting)
• Decrease the units of data logging target data.
• Increase the data sampling interval.
• Save only the necessary data to the file (Use the
trigger logging function).
• Stop access from GX LogViewer.
• By the error code, identify the error and take
corrective actions. (Page 261 Error Code List)
• By the error code, identify the error and take
corrective actions. (Page 261 Error Code List)
• Correct the power supply status.
• Clear the logging file in Configuration Tool.
4 TROUBLESHOOTING
4.3 Troubleshooting by Symptom
4
247