8 english
4.3  Display elements
Fig.4-3: 
BNI XXX-XXX-XXX-XXX
BNIXXXX
MAC-ID
POWER
OUT
IN
LK2
LK1
00-19-31-XX-XX-XX
4
0
09
08
01
00
MOD
NET
US
LK2
100
LK1
100
UA
Status LEDs
Port/Pin LEDs:  
Status of the IO-Link 
and I/O ports
Display elements
Port/Pin LEDs
LED number Assignment
Even Pin4
Odd Pin2
Tab. 4-1:  Port/Pin LEDs
Port/Pin LEDs Standard Port
Signal Meaning
Off State of input or output pins is 0
Yellow, static State of input or output pins is 1
Both LEDs 
red flashing
Short circuit of sensor supply between 
pin1 and pin3
Red, static Short circuit at output on pin2/4 against 
pin3
Red, static No high signal at diagnostic input
Red, static 24 V input signal on configured output 
(actuator warning)
Tab. 4-2:  LEDs Standard Port
Port/Pin LEDs IO-Link Port
Signal Meaning
Green, static IO-Link connection active
Green 
flashing
No IO-Link connection or incorrect 
IO-Link device
Green, fast 
flashing
IO-Link: Preoperate during data storage
Red, fast 
flashing
Validation failed / incorrect configuration 
of the IO-Link data length
Red, fast 
flashing
Data storage failed / incorrect device for 
data storage
Red, static IO-Link: Short circuit of pin 4 against pin 
3
Tab. 4-3:  LEDs IO-Link Port
Status LEDs
LED Signal Meaning
US Green, static Input voltage OK
Red flashing Input voltage low (<18V)
UA Green, static Output voltage OK
Red flashing Output voltage low (<18V)
Red, static No output voltage present 
(<11V)
MOD Green 
flashing
Incorrect or no module 
configuration
Green, static Module in progress.
Red flashing Fixed bus cycle not possible
Red/Green 
flashing
Starting sequence
NET Off Module has no IP address.
Green 
flashing
Module has an IP address, but no 
connection established.
Green, static Connection is established.
Red flashing Connection timeout
Red/Green 
flashing
Starting sequence
100 Off Transmission rate: 10Mbit/s
Yellow, static Transmission rate: 100Mbit/s
LK1/2 Green 
flashing
Data transfer
Tab. 4-4:  Status LEDs
4.4  Labeling
Fig.4-4: 
BNI XXX-XXX-XXX-XXX
BNIXXXX
MAC-ID
POWER
OUT
IN
LK2
LK1
00-19-31-XX-XX-XX
4
0
15
14
07
06
13
12
0504
11
1003
02
09
08
01
00
MOD
NET
US
LK2
100
LK1
100
UA
Order code Type
Labeling (example)
4
  Product description (continued)
BNI  EIP-508- _ 05-Z015- _  _  _
Network interface