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5 Troubleshooting
CJ-series EtherCAT Slave Units Operation Manual (W541)
5-2 Troubleshooting with Indicators
5
5-2-1 Checking for Errors and Troubleshooting with the Indicators
5-2 Troubleshooting with Indicators
Use the indicators to determine the error status of the EtherCAT Slave Unit. Refer to 2-1-2 Indicators on
page 2-3 for information on indicators.
This section provides information for checking errors and troubleshooting with the indicators on the
EtherCAT Slave Unit.
Here, the following abbreviations are used to describe the status of the indicators.
5-2-1 Checking for Errors and Troubleshooting with the Indicators
Indicators
Name Function
L/A IN The L/A IN indicator shows the link activity of the input port.
L/A OUT The L/A OUT indicator shows the link activity of the output port.
ECAT RUN The ECAT RUN indicator shows the operating status of EtherCAT communications for the
EtherCAT Slave Unit.
ECAT ERR The ECAT ERR indicator provides information on errors in the EtherCAT Slave Unit.
RUN The RUN indicator provides information on the operation of the EtherCAT Slave Unit.
ERC The ERC indicator provides information about errors of the EtherCAT Slave Unit.
ERH The ERH indicator provides information about errors of the CPU Unit.
Indicator Timing Status
Abbreviation Indicator status
Lit Lit
Not Lit Not lit
FS This abbreviation indicates a flashing pattern other than flickering, blinking, single flash, and
double flash.
FK Flickering
B Blinking
SF Single flash
DF Double flash
--- Undefined
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