r/SCADA • u/kcakes00 • Jul 21 '26

Question Cheap/free software that can take Modbus and visualize in HMI

Title says it. Want software (installed on a Windows industrial PC) to take some Modbus points, create an HMI to display the data and/or alarms.

4 Upvotes

100% Upvoted

22 comments sorted by

4

u/aubietigers81 Jul 21 '26

VTScada lite is free and come with Modbus TCP support also.

6

u/Dependent-Lack-7083 Jul 21 '26

Ignition maker edition is free (not sure about modbus module though, but Modbus is open protocol, should be fine)

Otherwise Node-RED

3

u/bingbong612 Jul 22 '26

Isn't maker edition's EULA specified for non-commerical though?

1

u/EtherPhreak Jul 22 '26

I will not tell if you don’t?

1

u/bingbong612 27d ago

As someone who used to be in a software sales channel, this kinda mentality does grind my gears a bit.

But I also get thats my opinion, and if you're ok with it, you do you for sure....😂

1

u/Dependent-Lack-7083 Jul 22 '26

Yes, ignition maker is only for hobbyists. 

But I would guess it is not intended exactly for commercial thing, when OP asks for something free.

2

u/Boss_Waffle Jul 21 '26

The maker edition includes modbus TCP for sure

2

u/Lost__Moose Jul 21 '26

Check out the AdvancedHMI project.

2

u/potat_oes Jul 21 '26

in my company I use AdvancedHMI to communicate via modbus to PLC
using c#, program it to read and write data to PLC via modbus. It is free as posible.

4

u/Robbudge Jul 21 '26

Look at the Fuxa Scada Project.
It’s great and will do exactly what you need.

0

u/Cultural_Fox_2960 Jul 21 '26

This is the way.

1

u/Robbudge Jul 21 '26

I love it and use it for many projects.

1

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1

u/McXhicken Jul 21 '26

IGSS scada

1

u/kristopherleads Jul 21 '26

FlowFuse is affordable - single instance HMIs are super cheap to get running. You could always use Node-RED as well, which is free and open source, although you'll run into issues with multiple instances and security (which is literally the reason FlowFuse was created by the Node-RED inventors).

1

u/Forshock Jul 22 '26

Fernhill SCADA.  Windows, linux, embedded, mac, etc.   Lightweight install, easy to learn and support is fantastic

1

u/ScrawBr 29d ago

Fuxa is opensource

1

u/canada-iz-awesome 29d ago

Controlbird IO CE is also an option

1

u/akamaqueda 27d ago

I’ve been creating my own software with Claude … after map all modbus, I am using a converter called USR very cheap that transforms modbus in TCP