Cant connect to PLC via USB or Ethernet

[JRiddington]

Hi there,

Any advice welcomed. I need to upload a program using UniLogic. I have tried connecting via USB and via Ethermet and Unilogic doesnt seem to see the controller? Any techniques or anything im missing?

The upload button at the bottom of the menu just remains greyed out.

Thank you

 

[DanT]

Hi;

One issue can be mis-matched versions  between UniLogic on your computer and the Version used to download the original program into the PLC.

  ( UniLogis is VERY  Picky  about this      The versions MUST MATCH )

 

What version of UniLogic OS  is in the PLC?  

      UniApps      -- About

 

What version of UniLogic are you using ?

    If necessary you can download older versions of UniLogic and install them - Yes you have to uninstall the current version first.

       ( To have Multiple versions of UniLogic available on your computer, see the  posts elsewhere in this forum)

 

DanT

[JRiddington]

Hi Dan, 

Thanks for getting back to me. Aha ok yes i could be something to do with this, i hadnt thought of that. I think you could be on the money with this.

I am running version 1.33.236 of Unilogic Studio. No idea what version was used previously however as it is a PLC we have acquired from an outside source. Id just like to upload the project in there now just in case we need to use it again.

Ill have a dig and see if i cant find out what version number they used. I'd imagine it will be a much older version as i have only just downloaded Unilogic and the program in this PLC is at least a few years old.