Using the Modbus LabVIEW Library

If you cannot or do not want to use the Modbus support for shared variables, you can use the Modbus VIs in the Modbus LabVIEW Library, available from ni.com. Go to ni.com, select Products & Services, and search for Modbus.

The Modbus LabVIEW Library uses a zero-based addressing system, as does FieldPoint. You can use the FieldPoint Modbus addresses as they appear in this help file, along with the function codes that FieldPoint supports.