Logging Type; Operating Procedure For Continuous Logging - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

11.3

Logging Type

The following table describes available methods of data collection:
Logging type Data collection method
Continuous logging Continuously collects specified data at specified interval or timing.
Trigger logging Collects specified data at specified interval or timing and extracts a
specified number of data records before and after the satisfaction of a
trigger condition.

Operating procedure for continuous logging

In continuous logging, the CPU module stores specified data in its internal buffer at a specified collection interval or timing
and, at the time of a file save operation, it saves the data in a data logging file residing in the storage memory.
1.
Write the settings into data memory or SD memory card using CPU Module Logging Configuration Tool.
2.
Operate CPU Module Logging Configuration Tool to start data logging. The data logging settings are registered and
continuous logging begins. (The special relay (data logging start) turns on.)
3.
Data collection finishes upon reaching "Number of files to be saved" specified as part of the "Stop" setting configured in
"Operation when exceeds the number of files".
4.
Specify the desired file in the storage memory to read the results of data logging.
In continuous logging, data logging files are continuously created, thus allowing the user to read the results of
data logging any time without having to wait for the completion of collection.
To stop continuous logging
The user can completely stop data logging by instructing CPU Module Logging Configuration Tool to stop data logging and
unregister the data logging settings stored in the CPU module. (The special relay (data logging start) turns off.)
To suspend/resume continuous logging
The user can suspend data logging with the data logging settings remaining intact by doing either of the following:
• Instruct CPU Module Logging Configuration Tool to suspend data logging (the special relay (data logging start) turns off).
• Turn off and on the special relay (Data logging suspend/resume flag).
To resume continuous logging from suspension, do either of the following:
• Instruct CPU Module Logging Configuration Tool to resume data logging (the special relay (data logging start) turns on).
• Turn on and off the special relay (Data logging suspend/resume flag).
11 DATA LOGGING FUNCTION
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11.3 Logging Type
Application
Allows the user to continuously monitor the content of
specified data.
Allows the user to monitor the content of specified data before
and after the satisfaction of a trigger condition.