9
Troubleshooting
The Troubleshooting table indicates measures to be taken if the sensor stops working.
Table: Fault diagnosis
Table 35: LED status indicators
LED
Indication
Meaning
Supply voltage
green
Power on
Off
Power off
Flashing green
A serious error has occurred. Please con‐
tact your SICK service partner.
BF (Bus fault)
dark
PROFINET connection ok
red
Device offline from PROFINET
red blinking
PROFINET communication start up or
invalid configuration
SF (System fault)
dark
Device ok
green blinking
Find Me
red blinking
System fault of the device
LINK ACT 1 (Link / Activity 1)
dark
No network connection on port 1
green
Network connection on port 1
LINK ACT 2 (Link / Activity 2)
dark
No network connection on port 2
green
Network connection on port 2
LED
Indication
Meaning
DI: LED for pin 2
amber
Additional DI on pin 2
off
No additional DI on pin 2
C/DI/DO LED for pin 4
green
Pin 4 - IO-Link communication active
green blinking
Pin 4 - no IO-Link communication active
9
TROUBLESHOOTING
122
O P E R A T I N G I N S T R U C T I O N | Sensor Integration Gateway - SIG200
8017853.1D0S/2021-11-04 | SICK
Subject to change without notice