Technical data
124 •  BACnet/IP Controller 750-830 
 LED Signaling 
 WAGO-I/O-SYSTEM 750 
BACnet/IP Controller 
3.1.9 LED Signaling 
For on-site diagnostics, the controller has several LEDs that indicate opera-
tional status for both the controller and the entire node. 
24V 0V
++
01
02
ETHERNET
C
D
B
A
C
B
A
24V 0V
++
01
02
C
D
B
A
C
B
A
LNK
ACT
BT
MS
I/O
BACnet/IP
NS
USR
A
B
Fig. 3-14:Indicators 750-830  g083002x 
Three different groups of LEDs are differentiated. 
Fieldbus status (see section 3.1.9.1) 
This LED group includes the single and two-color LEDs designated 
"LINK/ACT (green), "BT" (green), "MS" (red/green) und "NS" (red/green) 
that indicate the status of fieldbus communication and the operating mode. 
Node status (see sections 3.1.9.2 and 3.1.9.3) 
The LEDs arranged at the type "I/O" (red/green/orange) and "USR" 
(red/green/orange) indicate the status of the internal bus and of the fieldbus 
node. The USR LED can be controlled from an application program in the 
controller. 
Status of power supply (see section 
3.1.9.4) 
The LEDs A and B signal 24 V power supply (A) and the field side supply, 
i.e. to the power jumper contacts (B). 










