I have been using 1212s for 4 years or so now, and have never had an issue. 
Today I grab one and try to put a program in it and it gives me a "access to memory card denied" and below it " The memory card is protected from write access" however there is no memory card installed. I have used this program a few times now and never needed a card.

I then tried a new project, I only put the 1212 in it, and one line of code --/i0.0/------(Q0.0)--
And I get the same error. 

Pulled another one off the shelf, and program loads just fine in that one. 

What is going on with this one?? 

Any help is appreciated. 

Hello,

 have you tried to reset the PLC to factory setting?

Problem Solved!! 

I contacted Tech Support. If you look inside the memory card slot, there is a little pin way down inside, on the left. It gets pushed in when you put a memory card into the slot, and makes a contact letting the PLC know the card is there. I had to stick a tiny screwdriver in there and pry that pin out to the right a hair. This fixed it. 

I would have NEVER found that on my own, lol. 

tattooedblue

Problem Solved!! 

I contacted Tech Support. If you look inside the memory card slot, there is a little pin way down inside, on the left. It gets pushed in when you put a memory card into the slot, and makes a contact letting the PLC know the card is there. I had to stick a tiny screwdriver in there and pry that pin out to the right a hair. This fixed it. 

I would have NEVER found that on my own, lol. 

 Thank you very much my friend, I have done the same thing  on my CPU 1214 (214-1BE30-0XB0) and problem solved on 14/2/2019.

Congratulations for our  great forum and great members !!!!

tattooedblue

Problem Solved!! 

I contacted Tech Support. If you look inside the memory card slot, there is a little pin way down inside, on the left. It gets pushed in when you put a memory card into the slot, and makes a contact letting the PLC know the card is there. I had to stick a tiny screwdriver in there and pry that pin out to the right a hair. This fixed it. 

I would have NEVER found that on my own, lol. 

Wow, solved the problem. Thank you for sharing!