SICK SIM1004, Operating Instructions Manual

Page: 22 / 30

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
Table 5: Explanation of characters
Symbol Meaning
LED off
LED on
LED flashes
LED goes out briefly
LED lights up briefly
8.2 Device status
Table 6: Device status
Location Designation LED behavior Description
Dev RDY Device booting
Runlevel READY, no errors
detected*
Runlevel READY, boot proc‐
ess error
Sys RDY
Result
Remote User-defined, can
be configured with
SICK AppSpace .
* Time delay before availability due to boot process (approx. 30 s)
8
OPERATION
22 O P E R A T I N G I N S T R U C T I O N S | SIM1004 8023516/1BQH/2021-07-28 | SICK
Subject to change without notice