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Modbus is a communications protocol that provides master-slave communication between devices. Modbus allows data exchange between programmable logic controllers (PLCs) and computers or Human Machine Interfaces (HMIs). Supervisory control and data acquisition (SCADA) systems and HMIs can integrate devices using Modbus. Refer to the Modbus Organization website at www.modbus.org for more information about Modbus.
Use the following topics to understand Modbus and establish Modbus communication in LabVIEW:
Modbus Masters and Slaves
Modbus I/O Servers