LED Descriptions
122/299
PC Cards cifX Compact PCI, Mini PCI, Mini PCIe, PCI-104 | Installation, Operation and Hardware Description
DOC120205UM53EN | Revision 53 | English | 2019-03 | Released | Public
© Hilscher, 2008-2019
8.8 EtherCAT
Slave
For the EtherCAT Slave protocol, the communication LEDs
RUN
and
ERR
as well as the Ethernet-LED
L/A IN
or
L/A OUT
can assume the states
described below. This description is valid from stack version V2.5 (V2).
LED
Color
State
Meaning
Duo LED red/green
(off)
Off
INIT
: The device is in state INIT.
(green)
Blinking
(2,5 Hz)
PRE-OPERATIONAL
: The device is in PRE-OPERATIONAL state.
(green)
Single flash
SAFE-OPERATIONAL
: The device is in SAFE-OPERATIONAL state.
RUN
General
name:
COM 0
(green)
On
OPERATIONAL
: The device is in OPERATIONAL state.
Duo-LED red/green
(off)
Off
No error:
The EtherCAT communication of the device is in working
condition.
(red)
Blinking
(2,5 Hz)
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.
ERR
General
name:
COM 1
(red)
Double
Flash
Application watchdog timeout:
An application watchdog timeout has
occurred.
Possible reason: Sync Manager Watchdog timeout.
LED green
(green)
On
Link:
The device is linked to the Ethernet, but does not send/receive
Ethernet frames.
(green)
Flickering
(load
dependant)
Activity:
The device is linked to the Ethernet and sends/receives
Ethernet frames.
(off)
Off
The device has no link to the Ethernet.
LED yellow
L/A IN
or
L/A OUT
(off)
Off
This LED is not used.
Table 58: LED states for the EtherCAT Slave protocol
LED State
Beschreibung
Blinking
(2,5 Hz)
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).
Flickering (load
dependant)
The indicator turns on and off with a frequency of approximately 10 Hz to indicate high Ethernet
activity: on for approximately 50 ms, followed by off for 50 ms. The indicator turns on and off in
irregular intervals to indicate low Ethernet activity.
Table 59: LED state definitions for the EtherCAT Slave protocol
