The supported Modbus API is included in the LabVIEW DSC Module and the LabVIEW Real-Time Module. Everything must be done manually when using this low-level API. The supported Modbus API provides fine control over the Modbus protocol, with high performance. Supported Modbus API (boxed in blue in the screenshot above) ![]() In exchange for ease of use, Modbus I/O Servers do not have the fine control that the supported LabIVEW Modbus API has over the Modbus protocol that can be required for some applications. Modbus I/O Servers is included in the LabVIEW DSC Module and the LabVIEW Real-Time Module. ![]() Modbus I/O Servers provide a simple way to access and write Modbus data in LabVIEW. The Modbus I/O Server allows you to easily link Modbus register values to Shared Variables that you can use in your LabVIEW VIs.
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