Creating a .UDC file to download to PLC via UniDownLoader

• Open VisiLogic, with the program you want to load into the PLC via UniDownloader.

• Go to ‘Project’ > ‘Create Project File’ > Save the .vdf file in an appropriate folder with a related file name.

• In VisiLogic, go to ‘Tools’ > ‘UniDownload Designer’.

• A new pop-up window appears. In the field named ‘Application’ select the .vdf file you created previously.

• Tick the appropriate boxes as per your requirements.
• Once an application is selected you can select ‘Make File’ in the bottom right.
• You will be prompted to give this new file a name, give it an appropriate name (probably related to the original Visilogic project file name) and save.The program will build then save a new .udc file for use with UniDownloader.Open your UniDownLoader software available from http://www.unitronics.guru/i4SoftwareUtilities.html and at the top left of the screen you can select the ‘Open Runner Design’ icon. This will bring up a file explorer which you can use to locate the .udc file you saved previously.
• Creating file to download to PLC via UniDownLoader

• Once you have opened your .udc file in UniDownLoader you can download this program to your PLC by hitting the ‘Run’ icon at the top of the screen.
• You will be prompted to enter Communication setting before the download can begin, enter these as you would when communicating with a PLC in VisiLogic. Once these have been entered correctly and a communication between PC and PLC has been established the download will begin.