5-1
5: T
ROUBLESHOOTING
Introduction
This chapter describes the procedures to determine the cause of trouble and actions to be taken when any trouble occurs
while operating the analog I/O modules. When a trouble occurred, check the points and take the actions described below.
If the trouble cannot be solved, call IDEC for assistance.
Troubleshooting Diagrams
Analog I/O module does not work correctly (END Refresh Type)
YES
NO
NO
YES
Does the Status
DR store status code 4
(hardware failure)?
Call IDEC for assistance.
Analog I/O module does not work
correctly (END Refresh Type).
Make sure of correct parameters.
YES
NO
After changing settings,
was the CPU stopped and
restar ted?
Stop and restar t the CPU to configure the
analog I/O settings.
Supply the rated power voltage to the
analog I/O module.
See pages 4-14 and 4-16.
Does the Status
DR store status code 3
(invalid parameter)?
YES
NO
Are data registers
duplicated?
Change data register numbers to
eliminate duplicated data registers.
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