Data Logging Execution By Special Relay - Mitsubishi Electric FX5 User Manual

Data logging execution by special relay

The data logging setting can be registered by the special relay and be executed on the data logging setting file stored in the
SD memory card. Note that this operation can be used together with each operation of the CPU module logging setting tool.
(Page 474 Logging status and operation)
Operating procedure
1.
Write the effective setting data to the SD memory card with CPU module logging setting tool.
2.
If the special relay with the target setting No. (Data logging register/clear flag) to be executed is turned ON, the setting
data in the SD memory card will be registered.
3.
If the special relay with the target setting No. (Data logging suspend/resume) is turned OFF, the execution of data
logging will start. (Multiple execution can be performed simultaneously.)
4.
To suspend the data logging, turn ON the special relay with the target setting No. (Data logging suspend/resume). To
stop the data logging, turn OFF the special relay with the target setting No. (Data logging register/clear).
• The data logging cannot be started even when writing the setting and turning power off and on or resetting.
To start the data logging, make sure to turn ON the special relay (Data logging register/clear flag), and turn
OFF the special relay (Data logging suspend/resume).
• With regards to the trigger logging, the data logging setting registration attempt fails if the trigger condition is
satisfied.
• It takes a certain amount of time to stop or suspend the data logging after either of these commands is
issued by special relay (because the data logging is not stopped or suspended unless the data stored in the
internal buffer data has been transferred into the SD memory card in response to these commands).
• There may be a case where a time-out error occurs and the data logging is suspended after special relay
starts the logging.
Precautions
The data logging cannot be executed by the special relay on the data logging setting file stored in the data memory.
Data logging resume
When an error occurs during the data logging execution, the following operation is required to resume the data logging from
the program, etc.
Operating procedure
1.
Clear the cause of error, turn OFF the special relay (Data logging register/clear), and set the data logging status to the
disable status.
2.
After confirming the special relay (Data logging preparation) is OFF, turn ON the special relay (Data logging register/clear
flag).
3.
After confirming the special relay (Data logging preparation) is ON, turn OFF the special relay (Data logging suspend/
resume).
19 DATA LOGGING FUNCTION
19.12 Other Functions
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