Error Handling And Diagnostics; Diagnostic Leds Ek1121-0010, Ek1122, Ek1122-0008 - Beckhoff EtherCAT EK112 Series Manual

4

Error handling and diagnostics

4.1

Diagnostic LEDs EK1121-0010, EK1122, EK1122-0008

Fig. 41: EK1121-0010, EK1122, EK1122-0008, LEDs
LEDs for fieldbus diagnostics
LED Display
LINK / ACT green off
(X1/X2)
on
flashing
LED diagnostics EtherCAT state machine
LED Color Meaning
RUN green This LED indicates the terminal's operating state:
off
single flash
flashing
on
flickering
EK112x, EK15xx
State Description
- no connection on the EtherCAT strand
linked EtherCAT device connected
active Communication with EtherCAT device
State of the EtherCAT State Machine: INIT = initialization of the
terminal
State of the EtherCAT State Machine: PREOP = function for
mailbox communication and different standard-settings set
State of the EtherCAT State Machine: SAFEOP = verification of
the sync manager channels and the distributed clocks.
Outputs remain in safe state
State of the EtherCAT State Machine: OP = normal operating
state; mailbox and process data communication is possible
State of the EtherCAT State Machine: BOOTSTRAP = function
for terminal firmware updates
Version: 3.6
Error handling and diagnostics
55