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54 •
Programmable Field Bus Controller 750-833
Hardware
3.2.4 Display Elements
The operating status of the field bus coupler or of the node is signaled via light
diodes (LED).
Fig. 3.2.4-4: Display elements 750-833
LED
RUN
BF
DIA
BUS
IO
USR
A
C
*)
Color
Meaning
green
The RUN-LED indicates to the user whether the field bus coupler /
controller is correctly initialized.
red
The BF-LED indicates whether the communication via the
PROFIBUS is functioning.
red
The DIA-LED indicates an external diagnostics. The signaling is
not supported by all devices.
red
The BUS-LED signals a projecting fault.
red /green
The I/O-LED indicates the operation of the node and signals faults
/ orange
occurring.
red /green
The USR-LED can be selected by a user program in a
/ orange
programmable field bus controller.
green
Status of the operating voltage – system
green
Status of the operating voltage – power jumper contacts
LED-Position depends on manufacturer
g012107x
WAGO-I/O-SYSTEM 750
Bus System
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