Jun 19, 2012 Serial communication GUI using Labview. The Modbus message uses the register address. Free napoleon total war pack file editor software. For example, the first register of AO Holding Register has the number 40001, but its address is 0000. The difference between these two quantities is “offset”. Each table has its own offset, respectively: 1, 10001, 30001 and 40001.
A newer library, intended as a replacement for this one, was added to this page. This is not an official NI Product.
Version 1.2 (ni_modbus_1_2.zip) of the MODBUS LabVIEW Library is backward compatible with previous versions of the library. It adds a set of polymorphic VIs that make it easier to use MODBUS commands. These new VIs are also fully documented with a help file. Comments have also been added to the examples. Please follow the steps in the readme file for manual installation of the library. There is no installer available at this time.
This library is not designed for use on LabVIEW Real-Time run-time's and will not execute deterministically. Use the Modbus API available through the LabVIEW Real-Time Module or the LabVIEW Datalogging and Supervisory Control (DSC) Module instead.
Note: This is an example program and not an official NI Product. It is also not designed to execute on LabVIEW Real-time run-times. For a more complete, fully supported MODBUS solution, NI recommends the Modbus I/O Servers and Modbus API (2014 and newer) included in the LabVIEW Datalogging and Supervisory Control Module and LabVIEW Real-Time Module.