Modbus API

[SimoneMarchettiEDA]

Hi,

I'm new Labview developer. After some hours of training, I developed simple vi to communicate Modbus by serial port with external device. This is simple because I created an array and send it by rs485 (I have usb-rs485 adapter). It works!

I read that there is a modbus library (I open labview example..) and I want use it.

How can I import it in my project?

Thanks in advance.

[Lamber_86]

Hi Simone,

first of all for using the Modbus API you must have DSC module or RT Module, and you should see the Modbus palette under "Data Communication" palette.

The following KB explains how to use the library: https://www.ni.com/en/shop/labview/introduction-to-modbus-using-labview.html

[SimoneMarchettiEDA]

Thank you for your reply. I resolved it.

[arteitle]

There is a free Modbus library from NI that doesn't require the DSC module, you can read more about it here: https://forums.ni.com/t5/NI-Labs-Toolkits/LabVIEW-Modbus-API/ta-p/3524019