Diagnostic Function - Mitsubishi Electric MELSEC iQ-F Series Training Manual

Reading/writing data from/to the CPU module
Users can read/write created sequence programs from/to the CPU module by using the "Write to PLC" and "Read from
PLC" functions.
Users can edit sequence programs with the online change function even while the CPU module is in the RUN state.
Monitoring and debugging programs
Users can write created sequence programs to the CPU module and monitor data during operation, such as device values.
Pressing the buttons
switches the ON/OFF state
of the contact.

Diagnostic function

GX Works3 make diagnoses on the current error status and error history of the CPU module or network. With the
diagnostic function, system recovery can be completed in a short time.
The system monitor shows detailed information on intelligent function modules and others. This feature helps users to
shorten the time taken for system recovery when an error occurs.
Diagnosing the status
of the CPU module
module
Writing data
Reading data
Programs can be monitored and debugged.
Diagnosing the CPU module module ("Module Diagnostics" window)
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