Led indicators – Westermo ODW-641 User Manual
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6650-2291
LED Indicators
LED
Status
Description
PWR
Power
ON
Power is on.
Flashing
Unit configured as ring master
(DIP-switch S2:3 is ON).
OFF
Power is off.
BA
Bus active
ON
Data rate has been identified and
data frames are being received on
the electrical or optical interface.
OFF
Data rate has not been identified.
CH 2
Not used
CH 1
Channel 1 link status
ON
Fibre link to other unit has been
established at CH 1.
Flashing
Optical power detected but link to
other unit has not been established
at CH 1.
OFF
No optical power detected and
no link to other unit has been
established at CH 1.
DPR
Receive PROFIBUS DP
Flash
Data received on the electrical
interface and transmitted out on
the optical interface.
OFF
No data received on the electrical
interface.
FR
Receive fibre link
Flash
Data received on the optical interface
and transmitted out on the electrical
interface.
OFF
No data received on the optical
interface.
FL R
Failure link remote
ON
Remote fibre link failure. A fibre link
is out of operation at any other unit
than this one.*
Flashing
Hardware error or invalid configura-
tion.
FL L
Failure link local
ON
Local fibre link failure. A fibre link is
out of operation.
Flashing
Hardware error or invalid configura-
tion.
* N.B. Only valid if used togheter with ODW-642 units in a multidrop network.