96
5277A
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L
LED green Voltage for the module logics
on: Voltage within the valid range
off: No voltage. Eliminate the cause, replace
the fuse, if required (below the housing or in
the case of IBS ST, fuses are pluggable
from the outside). For the fuse type, refer to
the data sheet or "Fuse Types for IBS De
vices" (see Page 90).
BA LED green Bus active - indication
on: The bus is active.
off: The bus is stopped.
RC LED green Status of the incoming remote bus
on: The incoming remote bus is switched off.
off: The incoming remote bus is active.
RD LED red Status of the outgoing remote bus
on: The outgoing remote bus is switched off.
off: The outgoing remote bus is active.
LD LED red Status of the local bus
on: The local bus is switched off.
off: The local bus is active.
Rec button with- After pressing the button, the application
out connection program receives a message. The appli-
for ext. buttons cation program must fetch this message.
E LED red Error indication for the branching
local bus.
on: Error in the branching local bus.
off: The local bus is active.
Some bus terminal modules have a floating alarm output (re-
lay changeover contact). The alarm output is switched in the
event of errors in the branching bus (E-LED is active).