Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1710

Processing details
• To perform programmable controller CPU monitoring registration, register the data that is used for the module to execute
the CPU module function. Once the data used to execute the programmable controller CPU monitoring function has
completed successfully, the module starts monitoring the programmable controller CPU and sending the send result to the
external device.
• To cancel programmable controller CPU monitoring, stop the programmable controller CPU monitoring processing that is
being executed by the module. Once programmable controller CPU monitoring has been canceled successfully, the module
stops operation of the programmable controller CPU monitoring function.
• If device memory is monitored, a maximum of 10 blocks can be specified for the word and bit devices. To register the
device memory to be monitored, specify the word device blocks corresponding to the number of registered word blocks
before specifying the bit device blocks corresponding to the registered bit blocks.
• To send the CPU monitoring result to the external device, register the user frames and the user frame numbers using the
engineering tool.
• To perform programmable controller CPU monitoring registration again, cancel programmable controller CPU monitoring
before registration.
• The completion status of the ZP.CSET instruction can be checked with the completion device (d2) and the completion
status indication device (d2)+1.
• Completion device (d2)
This device turns on during END processing of the scan where the ZP.CSET instruction completes, and turns off during the next END processing.
• Completion status indication device (d2)+1
This device turns on or off depending on the completion status of the ZP.CSET instruction.
When completed successfully: The device remains off.
When completed with an error: The device turns on during END processing of the scan where the ZP.CSET instruction completes, and turns off during the next
END processing.
• If the programmable controller CPU monitoring registration is to be performed, the following data may be specified in the
control data only if the communication protocol setting for the target interface is nonprocedural protocol.
• User frame output start pointer for sending with a fixed cycle/sending upon condition matching
• Number of user frames sent for sending with a fixed cycle/sending upon condition matching
When the communication setting for the target interface is MC protocol, specifying the user frame output start pointer or the number of user frames sent is not
required. (They will be ignored if specified).
• The following figures show how the ZP.CSET instruction operates when its execution completes.
Sequence scan
ZP.CSET instruction
Completion device (d2)
Completion status
indication device (d2)+1
Serial communication
module
20 SERIAL COMMUNICATION INSTRUCTIONS
1708
20.11 Registering/Canceling the Programmable Controller CPU Monitoring
0 END
Execution of
the instruction
OFF
OFF
0 END
ON
ON
Set processing
0 END
Completed with an error
Completed successfully
OFF
OFF