ACC-72EX User Manual
Diagnostics
110
EtherCAT
– Slave – OPT61
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 Slave 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
No error: The EtherCAT communication of the device is in working condition
Red
Blinking
Invalid Configuration: General Configuration Error Possible reason: State change
commanded by master is impossible due to register or object settings.
Red
Single Flash
Local Error: Slave device application has changed the EtherCAT state
autonomously.
Possible reason 1: A host Watchdog timeout has occurred.
Possible reason 2: Synchronization Error, device enters Safe-Operational
automatically.
Red
Double Flash
Application Watchdog Timeout: An application Watchdog timeout has occurred.
Possible reason: Sync Manager Watchdog timeout.
LINK/ACT LED
Green LED on ETH0(IN) / ETH1(OUT) connectors:
Color
State
Meaning
Green
On
A link is established
Green
Flashing
The device sends/receives Ethernet frames
Green
Off
No link established
Yellow LED on ETH0 / ETH1 connectors:
Color
State
Meaning
Yellow
-
-
LED State Definition for EtherCAT Slave 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.
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).
