Data Logging Function; Data Logging States - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

28.15

Data Logging Function

In a redundant system, the data logging function collects data only in the control system regardless of the operation mode.
For details on CPU Module Logging Configuration Tool used for the data logging function in a redundant
system, refer to the following.
Page 945 How to Use CPU Module Logging Configuration Tool

Data logging states

The following table describes each data logging status in the redundant system.
Data logging state
Stop
Stop (Execute other functions after
completing collection)
Stop (Execute other functions after error)
Waiting RUN Not collected
Waiting Start Not Collected
Pause
Waiting to establish collection conditions
Not collected
Collecting
Waiting trigger Collecting before trigger
After Trigger Collecting
Collection Completed
Error
Standby system start waiting
Standby system pause
Standby system no collection
*1 The execution of another function includes:
 Execution of data logging with the same trigger conditions (Trigger conditions = Specified conditions)
 Auto logging
 Online change
28 FUNCTIONS
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28.15 Data Logging Function
Description
No data logging settings are registered and data collection is inactive.
Transition from "Collection completed" to "Stop" has occurred due to the execution of another function
Transition from "Error" to "Stop" has occurred due to the execution of another function
• Data collection has not yet been started because the CPU module is not in the RUN state.
• After the operation mode was switched to the separate mode, the standby system CPU module is waiting for
the transition to the RUN state.
Data collection has not yet been started and the CPU module is waiting for the start operation.
Data logging is suspended and data collection has not yet been started.
Waiting for the first collection timing after the start operation
Continuous logging is active and data collection is being performed.
Trigger logging is active, data collection is being performed, and waiting until the trigger condition is met
Trigger logging is active and data collection is being performed after the trigger condition is met
• Continuous logging: Data collection has finished upon reaching "Number of files to be saved" specified as part
of the "Stop" setting configured in "Operation when the number of files exceeds the set value".
• Trigger logging: Trigger logging has finished collecting data as much as the specified number of records.
Data logging has failed due to the occurrence of an error.
Data collection has not been performed, waiting for the start operation in the standby system.
Data logging is suspended in the standby system.
Data logging is started in the standby system, but data collection is inactive.
*1
.
*1
.