E-bus

The power supply unit checks the connected EtherCAT Terminals. In E-bus mode the "Link/Act IO" LED is lit. When data are transferred, the "Link/Act IO" LED flashes.

Diagnostic LEDs in K-Bus mode.

Display

LED

Meaning

E-bus 1:

Us

Power supply for basic CPU module. The LED lights green if the power supply is correct.

Up

Power supply for terminal bus. The LED lights green if the power supply is correct.

Link/Act IO

off

E-bus not connected.

on

E-bus connected / no data traffic.

flashes

E-bus connected / data traffic on the E-bus.