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EtherCAT connection indicator (LINK/ACTIVITY)
Indicator Status Description
OFF Not connected Connection not established
ON Connected
Connection established but no data
transmission
Flickering
Network connected and data
transmitting
Data transmitting; the indicator flickers
with a frequency of 50ms ON, 50ms
OFF
EtherCAT operation indicator (RUN)
Indicator Status Description
OFF Initialization
Once power is connected, the EtherCAT
device will complete initialization but has not
yet started communication; however, the upper
device can still access the device's register.
Blinking Pre-Operation
The upper controller can exchange data
through SDO
The indicator flickers with a frequency of
200ms ON, 200ms OFF.
Single Flash Safe-Operation
The device can exchange data with the upper
device using SDO and TxPDO data packets.
The indicator flickers with a frequency of
200ms ON, 1000ms OFF, which means it
flashes once every 1s.
ON Operational
Able to transmit SDO, TxPDO and RxPDO
data packets
Flickering
SII parameters are loaded
when power is connected
Load SII parameter initialization; the indicator
flickers with a frequency of 50ms ON,50ms
OFF
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