Error handling and diagnostics
CX51x0
80
Version: 2.8
9.1.2
E-bus
The power supply unit checks the connected EtherCAT Terminals. The "L/A" LED is lit in E-bus mode. The
"L/A" LED flashes during data transfer.
Table 38: Diagnostic LEDs in K-Bus mode.
Display
LED
Meaning
Us 24 V
Power supply for basic CPU module. The LED lights
green if the power supply is correct.
Up 24 V
Power supply for terminal bus. The LED lights green if
the power supply is correct.
L / A
off
E-bus not connected.
on
E-bus connected / no data traffic.
flashes
E-bus connected / data traffic on the E-bus.
