I have a 1769-L30ER - SER A that I am having a bit of trouble with. It is brand new out of the box today.
I can create a program from scratch & download without a problem, but I want to download an existing program to it, and for some reason it won't work. I have ensured that the program revision, and the firmware in the controller, match (20.11). However, when I attempt to download the existing program, for some reason it does not go through, and I get no error message either. The normal download screen appears, I click the button, the small pop-up appears saying "verifying routines, etc...", then that closes and the controller remains offline and the program has not transferred.
The only difference that I can see between the existing program that I want to download, and a new program that I create from scratch and download successfully, is the controller type being 1769-L30ER and 1769-L30ER/A.
Is it not possible to download a "1769-L30ER" program to a "1769-L30ER/A" controller?
Thank you very much for any advice.
I can create a program from scratch & download without a problem, but I want to download an existing program to it, and for some reason it won't work. I have ensured that the program revision, and the firmware in the controller, match (20.11). However, when I attempt to download the existing program, for some reason it does not go through, and I get no error message either. The normal download screen appears, I click the button, the small pop-up appears saying "verifying routines, etc...", then that closes and the controller remains offline and the program has not transferred.
The only difference that I can see between the existing program that I want to download, and a new program that I create from scratch and download successfully, is the controller type being 1769-L30ER and 1769-L30ER/A.
Is it not possible to download a "1769-L30ER" program to a "1769-L30ER/A" controller?
Thank you very much for any advice.