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Cannot Upload project due to "downloaded without an Upload option.".


Pat Bowen

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I am new to the Unitronics line of products.  I have a piece of equipment that is built on a Unitronics controller and PLC.  I am getting ZERO help from the machine manufacturer.  I am having an issue with the machine and need a copy of the PLC programming to further my troubleshooting.  I have downloaded the UniLogic software to a Win10 PC.  I have been able to establish a connection with the Unitronics device.  However, when I attempt to upload the existing programming, I get the following error: "The project in the controller cannot be uploaded. This is because the project was downloaded without an Upload option.". 

The UniLogic version on the PC is 1.33.  The version of UniLogic showing in UniApps on the machine is 1.28.

 Any help/tips would be greatly appreciated.  Thanks in advance for your time!

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  • MVP 2023
17 minutes ago, Pat Bowen said:

This is because the project was downloaded without an Upload option

Without the upload option enabled when the project was last downloaded you will be unable to obtain a copy of the project in this way. Most PLC software is set up this way to protect intellectual property.

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  • NoamM changed the title to Cannot Upload project due to "downloaded without an Upload option.".

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