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cRIO EtherCAT FAQ

Owned by Dirk Conzelmann, created

Last updated: 12.Aug 2021

1 min read

cRIO EtherCAT

Landing Page: https://www.ni.com/en-us/shop/hardware/products/c-series-ethercat-interface-module.html

Part Number: 784041-01

1 The cRIO EtherCAT enters the "Operational" state when it is without other communication participants on the bus. As soon as other bus participants are present, an error occurs
2 Related articles

The cRIO EtherCAT enters the "Operational" state when it is without other communication participants on the bus. As soon as other bus participants are present, an error occurs

Symptoms summary

Single in the network the communication between master and cRIO ECAT S works.
If more than one slave is operating in the ECAT network, the cRIO ECAT S will abort with the LED status message "Watchdog timeout".
The master is not in DC mode

Instructions

Start the Master (or TwinCAT) in DC-Mode and open the example “DC-VI”.
To start the project for cRIO ECAT S in DC mode, please open the "cRIO ECAT S Getting Started_DC(FPGA).vi" in the sample project. Please start the master with DC switched on before executing the VI.

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