Revision April, 2015
4-1
Chapter 4
EtherCAT
Troubleshooting
Q: Why my TwinCAT cannot find EtherCAT Device from all installed NIC
(Network Interface Card) and only shows RT-Ethernet devices?
A: 1. Please refer to TwinCAT setup procedure and make sure NIC is installed
properly.
2. Check if the cable is correctly connected and L/A LED is lit.
Q: The dialog shows “Unknown device type found” while using TwinCAT Scan
boxes.
A: Copy XML description of the ASDA-A2-E to TwinCAT device description folder
(usually in C:\TwinCAT\Io\EtherCAT) and restart TwinCAT System.
Q: Why does EtherCAT state machine only show INIT in Current State and blank
in DLL status when TwinCAT is in Config Mode?
Figure 30
A: 1. Set parameter P1-01 to 0x0C (EtherCAT communication mode).
2. Check the wiring from the host to EtherCAT communication port CN6A for input
and CN6B for output on servo drive. If the Link LED lit, it indicates that the
physical connection is correct and the drive is connecting.
