[Cause]
An error occurred when an attempt was made to connect to the device shown.
[Countermeasure]
Check that the device and board baud rates are the same. Check that the device is properly connected to the network. Check that the device is receiving power through the network. Check the device definition for the correct I/O type, access mode, and I/O size. Press the RESET key on the teach pendant and try connecting again.