ACC-72EX User Manual
Diagnostics
109
EtherCAT
– Master – OPT60
The following table describes the meaning of the LEDs for the comX Real-Time Ethernet communication
modules (COMX 100CA-RE/ COMX 100CN-RE) when the firmware of the EtherCAT Master protocol
is loaded to the comX communication module:
RUN LED (COM0)
Color
State
Meaning
Green
Off
INIT: The device is in state INIT
Green
Blinking
PRE-OPERATIONAL: The device is in PREOPERATIONAL state
Green
Flickering
BOOT: Device is in BOOT state
Green
Single Flash
SAFE-OPERATIONAL: The device is in SAFE-OPERATIONAL state
Green
On
OPERATIONAL: The device is in OPERATIONAL state
ERR LED (COM1)
Color
State
Meaning
Red
Off
Master has no errors
Red
On
Master has detected a communication error. The error is indicated in the DPM
LINK LED
Green LED on ETH0 connector
Color
State
Meaning
Green
On
A link is established
Green
Off
No link established
ACT LED
Yellow LED on ETH0 connector
Color
State
Meaning
Yellow
Flashing
The device sends/receives Ethernet frames
LED State Definition for EtherCAT Master for the RUN and ERR LEDs
Color
Meaning
On
The indicator is constantly on.
Off
The indicator is constantly off.
Blinking
The indicator turns on and off with a frequency of 2,5 Hz: on for 200 ms, followed by off for 200 ms.
Flickering
The indicator turns on and off with a frequency of approximately 10 Hz: on for approximately 50 ms, followed
by off for 50 ms.
Single Flash
The indicator shows one short flash (200 ms) followed by a long off phase (1,000 ms).
Double Flash
The indicator shows a sequence of two short flashes (each 200 ms), separated by a short off phase (200 ms).
The sequence is finished by a long off phase (1,000 ms).
