Checking Fb Operation (Faceplate); Troubleshooting - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

Process control function blocks

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Checking FB Operation (Faceplate)

Set the operating status of the CPU module to RUN, and monitor and change the tag FB operation and current values.

Operating procedure

For the display configuration of the faceplate, refer to the following.

 GX Works3 Operating Manual

When an error has occurred in the CPU module, check the error information by using the module diagnostics in the

engineering tool. For details on the module diagnostics (CPU diagnostics), refer to the following.

 GX Works3 Operating Manual

If the location where an error has occurred is a process control function block, check the detailed information in the module

diagnostics window and explanations of error codes of each function block in this manual. Also, the detailed information of the

error is stored in SD81 to SD111 (detailed information 1) and SD113 to SD143 (detailed information 2). For the information to

be stored, refer to the following.

( MELSEC iQ-R CPU Module User's Manual (Application))

2 PROCEDURE BEFORE USING PROCESS CONTROL FUNCTION BLOCK

2.7 Checking FB Operation (Faceplate)

Set the operating status of the CPU module to RUN to start

Select a tag FB in an FBD/LD program for process control, and

Monitor the status of the tag FB on the faceplate, and add

changes as necessary.