2024-03
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ARS*-B2-IA*
Operation
4 Operation
4.1 Operating Elements
Indicators
The rail field switch provides LEDs showing status and diagnosis information about the rail field
switch itself, the Ethernet ports and the spur ports. Refer to section Product Specifications for
location of the LEDs. See chapter 2
LED identifi-
cation Description Color Status / Possible cause Troubleshooting
PWR A,
PWR B
Status of
power
supply A
and B
Green on Power available -
Off No power available
• Check power supply and
connection to the rail field
switch.
• Restart rail field switch.
If the problem persists, send
the rail field switch to Pep-
perl+Fuchs.
STATUS Status of the
rail field switch
Off Good -
Blue on Maintenance required See note
Red on Failure See note
LNK/CHK
P1 ... P4
Status of the
Ethernet ports
Off No communication link
established
-
Green on Communication link estab-
lished
-
Green flashing Communication link activity -
Red flashing Check function See note
Locating
devices
P1 ... P4:
Green simultane-
ous flashing
(1 Hz)
Loacte device function acti-
vated
-
S1 ... Sn Status of the
spurs
Off No communication link
established
Check connection to the field
device.
Green on Communication link with
Ethernet-APL field device
established
-
Green flashing Communication link activity
with Ethernet-APL field
device established
-
Yellow flashing Communication with
PROFIBUS PA field device
established.
Red flashing Check function
Overload condition
Cable is too short
Field device takes too much
current
See note
Table 4.1
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