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Plasmionique Modbus Master V1.3.4

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About This File

This package contains an open source Modbus master library for LabVIEW.
It has been developed by Plasmionique Inc. as a replacement for NI Modbus V1.2.1 and provide an open source alternative to the NI Modbus Community API.
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
Additional Features:
Built-in resource locking simplifies the sharing of a serial port with multiple Modbus slaves or sharing a Modbus session across multiple threads.
Examples are included in "<LabVIEW>\examples\Plasmionique\MB Master\":
MB_Master Comm Tester.vi: Demonstrates usage of API to open/close connection and communicate with a Modbus slave device.
MB_Master Multiple Sessions.vi: Demonstrates usage of API to open concurrent Modbus sessions.
MB_Master Simple Serial.vi: Demonstrates polling of a single input register over serial line.

User guide is included in "<LabVIEW>\help\Plasmionique\MB_Master - User Guide.pdf".

Modbus COMM tester can be opened from the tools menu under "Tools -> Plasmionique -> Modbus COMM Tester..."

Download a copy of the user guide here: MB_Master - User Guide.pdf

Note that Version 1.3.4 of this library has been certified compatible with LabVIEW and has been released on the LabVIEW Tools Networkhttp://sine.ni.com/nips/cds/view/p/lang/en/nid/214230

The most recent version of this library will always be released on LAVA first before going through NI's certification process.

***This project is now available on GitHub: https://github.com/rfporter/Modbus-Master

What's New in Version V1.3.2   See changelog


Implemented transaction IDs for TCP mode

Added device ID objects to Modbus Comm Tester

Added PDU request and PDU response properties to ADU

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