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Plasmionique Modbus Master by Plasmionique Inc - Toolkit for LabVIEW Download

Open source Modbus master library for LabVIEW

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ReleasedOct 17, 2022
Publisher Plasmionique Inc
License BSD-2-Clause
LabVIEW VersionLabVIEW>=12.0
Operating System Windows, Mac, and Linux
Project links Homepage   Repository  


This package contains the Plasmionique Modbus Master library for LabVIEW.

It supports RTU, ASCII and TCP modes with the following function codes:
0x01 - Read Coils
0x02 - Read Discrete Inputs
0x03 - Read Holding Registers
0x04 - Read Input Registers
0x05 - Write Single Coil
0x06 - Write Single Register
0x07 - Read Exception Status
0x0F - Write Multiple Coils
0x10 - Write Multiple Registers
0x16 - Mask Write Register
0x17 - Read/Write Multiple Registers
0x2B/0x0E - Read Device Identification

Other features include:
- Sharing a COM port across multiple Modbus sessions using VISA locks (10 second timeout).
- Sharing a Modbus session across multiple communication loops.
- TCP transaction ID handling to ensure that requests and responses are matched up correctly in case responses are received out of order.
- Modbus Comm Tester, available through the "Tools->Plasmionique" menu, for testing communication with a slave device without writing any code.
- Detailed help document available through the "Help->Plasmionique" menu.

This package requires LabVIEW 2012 (or newer) and NI-VISA 5.4 (or newer).

Release Notes (Oct 17, 2022)

Modified launcher of TCP manager in "Open TCP" to block root loop only on first call.

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