Pepperl+Fuchs FieldConnex Segment Coupler 3 Manual page 64

PROFIBUS Power Hub Segment Coupler 3 (SK3)
Troubleshooting
Symptom
PA bus master parameters are write-
protected.
PA slaves do not take part in cyclic data
exchange.
Unusual gateway behavior and diagnostic
messages recurring at irregular intervals.
Remedy/Background
Built-in slave was addes to the cyclic data
exchange, using the PA bus configuration
module.
Remedy: Use different module to configure
cyclic data exchange.
Add built-in slave to cyclic data exchange.
Possible cause: Address collision with master
of backup gateway (address 2).
Remedy: Change address of the colliding
slave.
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