BECKHOFF ET2000 - Manual (Page 20)

Product overview
In frame no. 4856 (A), when it returns from the field after 2 µs, all WorkingCounters have changed; these
must now correspond to the expected values from fig. "Configuration and transmitted EtherCAT datagrams".
Fig. 13: WorkingCounter in returning frame
2.5 LED Displays
Ethernet
Fig. 14: RJ45 connector
For each channel 1 LED show the current status.
LED display per channel
LED Display
Link
Act off no connection
on connection established (Link)
flashing data transmission active (Act)
Status
The Status LEDs 1 ­ 8 are intended for future diagnosis functions.
In standard operate mode the LED 3 and 4 glow permanently.
ET2000 20 Version 2.0