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