Directly setting a VENUS Variable from a Python Script

[partyparrot]

Is there a way to run a python script in VENUS and have it return a value to an existing variable in VENUS and set it during runtime?

Thanks!

[Stefan]

I think this depends on whether you have Venus 6 or not.

In Venus 6 I believe you can use the built-in REST API exactly as you described. This post has some details.

Hamilton Venus 6 COM Interface - Different from Venus 4

Venus 6 includes a REST API for method control. It is not turned on by default, there’s instructions for starting the service here. I think like @Huajiang said you can still use the old ActiveX control. The new API allows you to inject a variable value into a method. You have to load the method, inject the variable value(s), then start the method. I’m pretty sure the old API does not have the ability to set variable values. [Screenshot 2025-04-08 085858]

Venus 4 is harder, there’s different ways of doing it that I’ve seen. The easiest might be going through COM objects. Check out the post below.

Hamilton Venus 6 COM Interface - Different from Venus 4

I’m looking for information on programmatically controlling Hamilton Venus 6 software. I have working COM interface code for Venus 4 that uses objects like “Hamilton.VenusAppSrv” for method control, but these don’t work with Venus 6. My use case is straightforward - I need to: Select/load method files Start, pause, and abort method runs Read and write method variables Using COM object discovery, I found these interfaces in Venus 6: Hamilton.HxUserManager (user management functions only) Hx…

[chips-a-hoai]

easiest way is to have your python script output the data to a file and have venus ingest that file.

[Stefan]

Yes this is the way to go if the variable isn’t dependent on the actions of the robot (frankly the vast majority of cases)