ABB AC 800M

CI855 and TP853 – Ethernet Interface for MasterBus 300 Appendix A Hardware Units
170 3BSE 027 941 R301
Indicators
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F(ault) /Red Unit error detected. Controlled by Control
Software. Set and cleared by the Hardware during
controller Reset.
R(un) /Green Operating. Controlled by the Control Software.
Cleared by the Hardware during controller Reset.
Tx1 /Yellow flashing A yellow LED indicating transmission from the
communication unit COM1 port.
Rx1 /Yellow flashing A yellow LED flashes when data is being received
from the COM1 port.
Tx2 /Yellow flashing A yellow LED indicating transmission from the
communication unit COM2 port.
Rx2 /Yellow flashing A yellow LED flashes when data is being received
from the COM2 port.