LEDs
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10.3.5
LEDs EtherCAT Master
The subsequent table describes the meaning of the EtherCAT Master LEDs
of the NHST-T100-EN/ECM, respectively of the NHST-T100-EN with
loaded EtherCAT Master firmware.
LED
Color
State
Meaning
RUN
Position in the device
drawing:
(7)
Duo LED red/green
(off)
Off
INIT:
The device is in INIT state.
(green)
Blinking
(2.5 Hz)
PRE-OPERATIONAL:
The device is in PRE-OPERATIONAL
state.
(green)
Flickering
(10 Hz)
The device is not configured.
(green)
Single flash
SAFE-OPERATIONAL:
The device is in SAFE-OPERATIONAL
state.
(green)
On
OPERATIONAL:
The device is in the OPERATIONAL state.
ERR
Position in the device
drawing:
(8)
Duo LED red/green
(off)
Off
Master has no errors
(red)
Single flash
Bus Sync error threshold
(red)
Double flash
Internal Stop of the bus cycle
(red)
Triple Flash
DPM watchdog has expired.
(red)
Quadruple
Flash
No Master license present in the device.
(red)
Blinking
(2.5 Hz)
Error in the configuration database.
(red)
Single Flickering Channel Init was executed at the Master.
Transient state that may not be visible.
(red)
Double
Flickering
Slave is missing
Unconfigured slave
No matching mandatory slave list
No bus connected
(red)
Flickering
(10 Hz)
Boot-up was stopped due to an error.
LINK
Ch0
(9)
LED green
(green)
On
Link:
The device is linked to the Ethernet, but does not send/
receive Ethernet frames.
(green)
Flickering (load
dependent)
Activity:
The device is linked to the Ethernet and sends/receives
Ethernet frames.
(off)
Off
The device has no link to the Ethernet.
ACT
Ch0
(11)
LED yellow
(off)
Off
This LED is not used.
Table 44: LED states for the EtherCAT Master(V4) protocol
LED state
Definition
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).
Triple Flash
The indicator shows a sequence of three 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).
Quadruple
Flash
The indicator shows a sequence of four 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).
netHOST NHST-T100 | LAN controlled master devices
DOC130401UM05EN | Revision 5 | English | 2018-05 | Released | Public
© Hilscher 2013 – 2018
