[Cause]
The slave side of the InterBus board has not yet transmitted or received process data.
[Countermeasure]
Start transmitting and receiving data on the InterBus network connected to the slave side of the InterBus board. During system setup, if the robot must be moved before the slave has transmitted or received data, enable the error snapshot setting. For details of the setting, refer to section 5.2.2 (TP mode) or section 6.2.2 (CMD mode) of the InterBus Function (for Phoenix Contact PCI Board) operator manual.