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C1120 S5 to II/O Lightbus Interface
Status LEDs
3 Status LEDs are shown on the front panel of the C1120 interface:
1.
RUN
2.
CPU-ERR
3.
II/O-ERR
Date 27.06.97
: If this LED shows the C1120 interface is ready to work.
: Intermitting light indicates mismatch of number of modules in
the configuration and II/O-Lightbus ring. Possibly the
EEPROM memory is defect.
Uninterrupted light indicates a general interface error. A cold
start is recommended prior to change of the interface.
: Intermitting light indicates a general II/O-Lightbus error, which
can be analyzed in details or serviced by the special functions.
Version 2.1
Beckhoff II/O-Lightbus System
Page 33 of 52
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