
11.PMC ALARM MESSAGES AND ACTIONS TO TAKE B-63983EN/02
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Alarm number Faulty location/corrective action Contents
PC501 NC/PMC INTERFACE ERR
PATHn
Contact us with information on the
circumstances under which the alarm
occurred (displayed message, system
configuration, operation suspected of
causing the alarm, timing of alarm
occurrence, frequency of occurrence,
etc.).
The read or write operation between
CNC and PMC failed.
PC502 LADDER SUBaaa (PMCn) Correct the sequence program so that
the SUBaaa functional instruction will
not be used.
The sequence program uses the
SUBaaa functional instruction that is
not supported in PMCn.