Atlas Copco Power Focus 4000 - Page 225

Fieldbus
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The following figure shows typical Data Map To/From PF for Interbus protocol.
Due to Interbus standard specification it is necessary to cycle power on PF to validate
changes in Fieldbus configuration.
Hardware
LED 1 = RBDA (Remote Bus Disable)
LED 2 = TR (Transmit/Receive)
LED 3 = CC (Cable Check)
LED 4 = BA (Bus Active)