Logging Type; Continuous Logging - Mitsubishi MELSEC Q series User Manual

6.3

Logging Type

There are three logging types:

• Continuous logging

• Trigger logging
• Specification period logging
6.3.1
Continuous logging
When continuous logging is selected, device values of the CPU module are continuously logged at the specified
intervals. The flow of the continuous logging is shown below.
<Preparation for continuous logging>
Configure data logging settings in the
configuration tool, and write them to the CPU
module.
<Start of continuous logging>
Start data logging by the start operation from the
configuration tool.
<Data sampling>
The data configured in the configuration tool are
collected and saved to an SD memory card.
<Completion of continuous
*3
logging>
When the specified number of saved files is
*5
reached, the logging is completed.
<Reading of continuous logging
*3
results>
: User operation
: Operation of CPU module
*1 Data logging can be resumed by performing the following from the pause status.
 Start operation from the configuration tool ( Page 131, Section 8.4.14)
 Turning on the special relay (Data logging start)
*2 Logging data are regarded as being saved until the entire buffer data are saved in the SD memory card.
For the data logging status, refer to  Page 63, Section 6.4.
*3
For the configuration tool, refer to  Page 95, CHAPTER 8.
*4
*5 The data logging results can be read because the data logging file is created even when the data logging has not been
completed.
56
*3
*4
*4
Specify a file in the SD memory card, and read
*4
out the data logging results.
*1
*2
<Pause of continuous logging>
By the following operation, data logging pauses
with the data logging settings registered.
• Pause operation from the configuration tool
• Turning off the special relay (data logging start)
<Stop of continuous logging>
By the following operation, registration of the data
logging setting in the CPU module is cancelled.
• Stop operation from the configuration tool
*3
*3