Step 6) When you need to verify the offline program with the online version, things get a little different.
You will be able to select the items you want to download in case you only want to download the program logic or maybe just Data Memory or Parameters. Step 5) A similar view to the Reading function is created when Writing. Similar to other windows dialog boxes, you can choose to allow it to automatically close if you check the box at the bottom of the window. Step 4) If you select Read and press Execute, you will see the Read from PLC dialog appear. This is where you can select, for instance, Device Memory or Parameters for a Read action so you can make changes, save, and then download without changing registers used for things like recipes or important parameters. Before pressing “Execute”, you will check (or uncheck) the needed checkboxes that correspond to what you would like to do.
Step 3) Some instances might require that you select options that are not the default. Once you have the action selected and everything looks right (usual defaults are typically ok), press Execute. You can select Write, Read, Verify, or Delete. Here you can change your choice if you have selected the wrong operation initially. You will then see the Online Data Operation Window. Online Write and Read Option, Image by Paul Hunt Step 1) Once connected to the PLC, you will use the Online pulldown menu or the associated quick keys to select what you would initially like to do. Note: Setting up the connection from GX Works 3 to Mitsubishi PLCs was covered in my previous write-ups here and here. The focus of this submission will be downloading, uploading, and some associated steps and tools. If you know where to look, GX Works3 will also show you ladder differences graphically as well.
Like any other popular PLC programming software, you can upload and download to the processor as well as other typical tools like compare or verify. The same setup was used in the previous Mitsubishi PLC series which includes the preceding (pre-requisite) document with step-by-step on how to connect. In this walk-thru we'll look at downloading and uploading to Mitsubishi FX5 and iQ-R controllers.
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