Operating mode LED Meaning
Or
ange
Flexi Loop DIAG accessory in commissioning mode
R
ed
No valid input signal detected, critical error (restart required)
Table 45: Operating mode LED of the DIAG Flexi Loop accessory
Loop integrity LED Meaning
No operating voltage, or voltage too low
Gr
een
Flexi Loop communication is running
R
ed
Flexi Loop communication interrupted (cable break detected) The
connection has pr
obably been interrupted downstream of the Flexi
Loop node whose LED is flashing.
Or
ange
Flexi Loop communication interrupted (cable break detected) The
connection has pr
obably been interrupted upstream of the Flexi
Loop node whose LED is flashing.
Table 46: Loop integrity LED on the DIAG Flexi Loop accessory
9.4 Extended diagnostics
Usage on Flexi Soft
The sof
tware for configuring the Flexi Soft safety controller supports advanced diagnos‐
tic options. These options allow you to further isolate the problem if the error situation
is unclear or if there are availability issues. You will find detailed information in the
“Flexi Loop in the Flexi Soft Designer” operating instructions, part no. 8014522.
Usage on the MSTR2 Flexi Loop accessory
The PLC uses service data to read out parameter values or statuses of Flexi Loop
nodes.
The parameter list with all data that can be read and written is available as a separate
document (SICK part number 8017450).
9.4.1 Diagnostics using the MSTR2 Flexi Loop accessory
If you have connected the MSTR2 Flexi Loop accessory to a PLC via IO-Link, then you
can r
etrieve diagnostics information on the safe sensor cascade.
b
Login to the configuration software for the standard controller as Observer.
b
Change to Parameter on the IO-Link port used.
b
Open there the Observation Menu branch.
✓
The test options contained in the IODD are displayed.
TROUBLESHOOTING 9
8015836/YT10/2016-05-24 | SICK O P E R A T I N G I N S T R U C T I O N S | Flexi Loop
77
Subject to change without notice
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