User`s manual

2.3.2 How to register and cancel the programmable controller CPU

monitoring function

The following describes the method for registering and canceling the programmable controller CPU monitoring

function from the programmable controller CPU.

● For details on the method for registering and canceling the programmable controller CPU monitoring function with GX

Configurator-SC, refer to the Q Corresponding Serial Communication Module User's Manual (Basic).

● For details on the method for registering or canceling the programmable controller CPU monitoring with a command of

MC protocol, refer to the MELSEC Communication Protocol Reference Manual.

(When registering or canceling from the programmable controller CPU)

For details on the CSET command, see Page 375, Section 17.3.

(1) Stores the data for programmable controller CPU monitoring registration in

the device that designates the control data for the CSET instruction.

(2) Executes 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.

(3) When there is an error, (D2)+1 turns ON and the error code in stored in the

completion status (S2)+1.

ZP.CSET

"Un"

D200

M1M0

Create control code data from D0

Processing for abnormal completion

Processing for normal completion

Registering

programmable controller

CPU monitoring

Scan Scan Scan

END

processing

END

processing

END

processing

At abnormal completion

Instruction

execution

Setting processing

Sequence program

Completion device

Completion device +1

Programmable controller CPU

CSET instruction