Technical data

Fieldbus ECO-Coupler 750-343 • 45
Hardware
WAGO-I/O-SYSTEM 750
PROFIBUS
3.1.2.4 Display Elements
The operating condition of the Fieldbus Coupler or node is signaled via light
diodes (LED).
Fig. 3-4: Display elements 750-343 g012120x
LED Color Meaning
RUN green The RUN-LED indicates to the operator if the Fieldbus Coupler is
correctly initialized.
BF red The BF-LED indicates whether the communication functions via
the PROFIBUS.
DIA red The DIA-LED indicates 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
encountered.