Omron TJ2-MC02 Hardware Reference Manual page 233

Hardware reference
EtherCAT Communications Status Indicators
The table below shows the LED indication status and the corresponding
conditions of the communications.
/i
Name Colour Status
L/A IN Green OFF
ON
Flickering
L/A OUT Green OFF
ON
Flickering
RUN Green OFF
Blinking
Single flash
ON
ERR Red OFF
Blinking
Single flash
Double flash
Flickering
ON
HARDWARE REFERENCE MANUAL
Description
Link not established in physical layer
Link established in physical layer
In operation after establishing link
Link not established in physical layer
Link established in physical layer
In operation after establishing link
Init state
Pre-Operational state
Safe-Operational state
Operational state
No error
Communications setting error
Synchronization error or communica-
tions data error
Application WDT timeout
Boot error
PDI WDT timeout
fig. 121
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