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Error handling and diagnostics
EK1122, EK15xx
67
Version: 3.4
7.2
Diagnostic LEDs EK1521, EK1521-0010
LEDs for fieldbus diagnostics
LED
Display
State
Description
LINK / ACT
(X1)
gree
n
off
-
no connection on the EtherCAT strand
on
linked
EtherCAT device connected
flashing
active
Communication with EtherCAT device
LED diagnostics EtherCAT state machine
LED
Color
Meaning
RUN
green
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