![background image](http://html.mh-extra.com/html/sick/sim200/sim200_operating-instructions-manual_1264349021.webp)
8
Operation
8.1
Status LEDs
When the device is operating, the operational status of the connections is indicated
visually by status LEDs.
Using these status indicators, the operator can find out quickly and easily whether the
device and the peripherals are working properly or whether any faults or errors have
occurred.
Monitoring the visual indicators is part of the routine inspection carried out on the
device and the machine/plant area into which the device is incorporated.
Meaning of symbols
Symbol
Meaning
LED off
LED on
LED flashes
Designation
LED behavior
Description
POWER
Voltage not applied to the con‐
nection.
Voltage applied.*
AUX
User-defined, configurable with
AppSpace
S1 – S4
C/ DI/ DO
Pin 4: IO-Link communication
active
Pin 4: No IO-Link communica‐
tion active
S1 – S4
DI
Additional digital input on pin 2
No additional digital input on
pin 2
P1/P2
LINK ACT 1
LINK ACT 2
Connection not established
with Ethernet.
Connection established with
Ethernet.
Data transmission via Ethernet
*
Time delay before availability due to boot process (approx. 60 s)
OPERATION
8
8026126//2020-10-15 | SICK
O P E R A T I N G I N S T R U C T I O N S | SIM200
21
Subject to change without notice