Beckhoff C1120 Manuale Utente Scaricare il pdf (Pagina 33)

C1120 S5 to II/O Lightbus Interface Beckhoff II/O-Lightbus System

Date 27.06.97 Version 2.1 Page 33 of 52

Status LEDs

3 Status LEDs are shown on the front panel of the C1120 interface:

1. RUN : If this LED shows the C1120 interface is ready to work.

2. CPU-ERR : 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.

3. II/O-ERR : Intermitting light indicates a general II/O-Lightbus error, which

can be analyzed in details or serviced by the special functions.

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Beckhoff C1120 Manuale Utente Pagina 33