Error handling and diagnostics
7.3
Diagnostic LEDs EK1561
LEDs for fieldbus diagnostics
LED
Colo
Display
r
LINK / ACT
gree
off
(X1)
n
on
flashing
LED diagnostics EtherCAT state machine
LED
Color
RUN
green
68
State
Description
-
no connection on the EtherCAT strand
linked
EtherCAT device connected
active
Communication with EtherCAT device
Meaning
This LED indicates the terminal's operating state:
off
State of the EtherCAT State Machine: INIT = initialization of the
terminal
single flash
State of the EtherCAT State Machine: PREOP = function for
mailbox communication and different standard-settings set
flashing
State of the EtherCAT State Machine: SAFEOP = verification of the
sync manager channels and the distributed clocks.
Outputs remain in safe state
on
State of the EtherCAT State Machine: OP = normal operating state;
mailbox and process data communication is possible
flickering
State of the EtherCAT State Machine: BOOTSTRAP = function for
terminal firmware updates
Version: 3.4
EK1122, EK15xx