There are two open-source modbus libraries available that compile fine with CVI. They both are incomplete in different ways but they work. Incidentally, both are named libmodbus.
We have a Labwindows CVI Application realized with LabWindows V6.0. This application should communicate with a Matrikon server via Modbus TCP protocol.
Is it correct, that therefore we need to implement a Modbus RTU/TCP protocol support in the LabWindows application. We have the Matrikon Server and the
LabWindows application on the same PC. There should be no problem to communicate via Modbus /TCP on the same PC between the LabWindows application