3 indicators – Westermo FD-20 User Manual
Page 12
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6.3 Indicators
6.3.1 LED indicators
PWR
On
In service (power)
Off
Out of service
TD
On
Transmit serial (RS-232/485) data
Off
–
RD
On
Receive serial (RS-232/485) data
Off
–
RUN
On
Running, PROFIBUS DP and serial (RS-232/485)
transfer in operation. Exchanging data with all slaves.
Flashing (2 Hz)
PROFIBUS DP error,
e.g. missed data exchange with a slave
Off
–
DIAG
On
Stat_Diag (static diagnostics) set
Off
–
CONF
On
Configuration mode
Flashing (2 Hz)
Missed or invalid configuration
Flashing (once)
The received serial (RS-232/485) data length
≠
slaves output data length (as defined by configuration)
Off
–
BA
On
PROFIBUS DP in operation
Flashing (2 Hz)
Failed PROFIBUS DP master initiation
Off
–
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