LED Descriptions
83/223
PC Cards cifX PCI, PCIe, Low Profile PCIe | Installation, Operation and Hardware Description
DOC120204UM46EN | Revision 46 | English | 2015-12 | Relelased | Public
© Hilscher, 2008-2015
8.4 EtherCAT
Master
For the EtherCAT Master protocol, the communication LEDs
RUN
and
ERR
as well as the Ethernet LEDs
LINK
and
ACT
can assume the states
described below. This description is valid from stack version V3.0.
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)
Flickering
(10 Hz)
BOOT
: Device is in Boot mode.
(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
Master has no errors.
ERR
General
name:
COM 1
(red)
On
Master has detected a communication error. The error is indicated in
the DPM.
LED green
(green)
On
The device is linked to the Ethernet.
LINK
Ch0
(off)
Off
The device has no link to the Ethernet.
LED yellow
(yellow)
Flickering
(load
dependant)
The device sends/receives Ethernet frames.
ACT
Ch0
(off)
Off
The device does not send/receive Ethernet frames.
Table 38: LED states for the EtherCAT Master protocol
LED State
Definition
On
The indicator is constantly on.
Off
The indicator is constantly off.
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.
Flickering
(10 Hz)
The indicator turns on and off with a frequency of 10 Hz: “on” for 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).
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 39: LED state definitions for the EtherCAT Master protocol
