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11.2 High Performance Model QCPU, Process CPU, Redundant CPU
11.2.2 Hardware check
11
PROCEDURE FOR WRITING PROGRAM TO CPU
MODULE
Remark
Refer to the following manual for the installation and mounting procedures of the
CPU module.
QCPU User's Manual (Hardware Design, Maintenance and Inspection)
Diagram 11.4 Hardware check flowchart
Power the PLC OFF and then ON, or
reset the CPU module.
Set the RUN/STOP switch to the RUN
position to place the PLC in the RUN
status.
Is the RUN LED of
the CPU module
on?
Choose [Diagnosis] [System monitor]
on GX Developer or perform PLC
diagnosis to check the error factor, and
remove the error factor.
YES
To Section 11.2.3
NO
Troubleshooting of QCPU User's Manual
(Hardware Design, Maintenance and
Inspection)
Please contact your nearest local Mitsubishi
service center or representative, explaining
a detailed description of the problem.
Is the ERR. LED
off?
YES
NO
1)
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