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Issued: 29.11.2012 Version: KR C4 Interbus 1.1 V2 en (PDF)
The CMD interface is designed as a 6-contact mini-DIN socket (PS/2) on the
front plate .
The master module also has an LED FO3 (Fiber Optic 3) for diagnosis of the
outgoing fiber-optic cable.
8.4
LEDs on the slave module
The diagnostic LEDs of the slave module indicate its state and that of the high-
er-level Interbus system:
PF
Yellow
Peripheral Failure
Periphery fault of a device
BSA
Yellow
Bus Segment Aborted
One or more bus segments are switched off
Fig. 8-2: LED for diagnosis of the outgoing fiber-optic cable interface
Designation
Color
Meaning
FO3
Yellow
Fiber Optic 3
Lights up when the initialization of the outgo-
ing interface is not OK, or a MAU warning is
present due to poor transmission quality on
the path. This applies to the outgoing data
path/transmitter to the following module; the
state of the return data path/receiver is diag-
nosed by the following module.
Designation
Color
Meaning
Designation
Color
Meaning
UL
Green
U Logic
Operating voltage present
RC
Green
Remote bus Check
The connection to the higher-level controller
board has been established
BA
Flash-
ing
Bus Active
Bus is in the ACTIVE state
Содержание Interbus 1.1
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