Troubleshooting

When you create or execute NI-Industrial Communications for DeviceNet applications, you may encounter the following issues. Follow the guidelines to troubleshoot those issues.

You cannot open an interface on CompactRIO.

Ensure that you use the Open FPGA VI Reference function to load the NI 9882 module and wait for a few seconds for the loading process to complete.

The NI-IndCom for DeviceNet interfaces are not visible in NI Measurement & Automation Explorer (MAX).

Ensure that the NI-IndCom for DeviceNet interfaces and the DeviceNet driver are properly installed. The LabVIEW Real-Time Module is required when you install the NI DeviceNet interfaces on the real-time controller target.

All NI-IndCom for DeviceNet operations return failure.

Inconsistent baud rates among your DeviceNet devices may cause the failure. Ensure that you use the same baud rate for all DeviceNet devices on a DeviceNet network.

LabVIEW error (Hex 0xBFF62007) occurs when the device does not support closing Explicit Messaging Objects or I/O Objects.

Ensure that you stop the interface before closing Explicit Messaging Objects or I/O Objects.

The device does not support reading I/O Objects or reading/writing Explicit Messaging Objects before starting the interface.

Ensure that you start the interface first if you want to read I/O Objects or read/write Explicit Messaging Objects. Devices only support writing I/O Objects before starting the interface.

Change does not take effect when you change a node ID or a baud rate in LabVIEW.

Ensure that you restart the devices to apply the new node ID or baud rate.

The device does not get the current state.

Ensure that you start the interface before getting the current state. Devices do not support getting the current state in stop mode.