Modbus Master helps you communicate with Modbus devices in LabVIEW.
Modbus Master is a software add-on for LabVIEW that provides an open-source Modbus master library. This add-on supports the Modbus Application Protocol Specification V1.1b3 for communicating with Modbus slave devices over asynchronous serial or TCP/IP networks. Additionally, the add-on supports ASCII and remote terminal unit (RTU) modes. With Modbus Master, multiple masters can share serial ports, and a single master can communicate with multiple slave devices. You can also share a Modbus session across multiple communication loops. Plus, the add-on includes example code for verifying communication with slave devices.