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6 USING THE PROGRAMMABLE CONTROLLER CPU MONITORING FUNCTION
6.3 Settings for Using the Programmable Controller CPU Monitoring Function
How to register and cancel the programmable controller CPU
monitoring function
The following shows the method to register/cancel the programmable controller CPU monitoring function from the CPU
module.
• For details on the method for registering or canceling the programmable controller CPU monitoring with a
command of MC protocol, refer to the following manual.
( MELSEC Communication Protocol Reference Manual)
When registering or canceling from the CPU module
For details on the CSET command, refer to the following section.
Page 520 Dedicated Instructions
• Store the data for programmable controller CPU monitoring registration in the device that designates the control data for the
CSET instruction.
• Execute the CSET instruction.
At the end of the scan in which the CSET instruction was completed, the completion device (M0) designated by (D2) turns
ON and then turns OFF at the next END processing.
• When an error occurs, (D2) + 1 turns ON and the error code is stored in the completion status (S2) + 1.
ZP.CSET
"Un"
M0
D200
D0
K1
M1M0
M1
Registering programmable controller
CPU monitoring
Create control code data from D0
Processing for normal completion
Processing for abnormal completion
Program Scan
END
processing
Scan
END
processing
Scan
END
processing
Instruction execution
CSET instruction
Completion device
Completion device +1
At abnormal completion
CPU module
Setting processing
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