Diagnosis; Diagnosis And Behaviour In Case Of An Error; Checklist - ABB DNP31.0 Technical Description

Diagnosis

Diagnosis and behaviour in case of an error

The DNP31 module provides diagnosis information about the status of the connected device (i.e. UMC100.3), its own status and
the status of the DeviceNet connection.
Diagnosis information is shown
– with the locally available LEDs and
– via DeviceNet services.
Diagnosis information is locally displayed using LEDs located on the front side of the DeviceNet interface.
NS LED (red, green)
Off
Green flashing
Red flashing
Red
Green

Checklist

In case of trouble use the following checklist to track down the problem:
DeviceNet
– Are the termination resistors placed at the end of the line?
– Is the line polarity correct?
– Are the lines by accident swapped?
– Is the maximum line length exceeded?
DeviceNet parameters
– Is the baud rate correct?
– Is the slave address correct?
– Are there two devices with the same address in the system?
– Power supply turned on?
DeviceNet master
– Is the correct EDS file used
DNP31.0 Data sheet
MS LED (red, green)
Off
Green flashing
Green
Red flashing
Red
Meaning
Power Supply missing
Online, but not yet listed in scan list
I/O connection in timeout state
Critical connection error, no communication, e.g. address used twice,
bus switched off.
Online and listed in scan list
Waiting for communication to device (UMC100.3)
Module is working correctly.
Communication timeout on link to device (UMC100.3)
Unrecoverable module error, module replacement possibly required
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Issue: 09.2015