Fanuc 21i-t

I need to change something on a ladder of one the cncs but cant.
I saved the ladder to mcard
Decompiled and opened in fanuc ladder III
Made the program changes compile and save to mcard
But i cant write the new ladder to cnc.
I m trying through PMC - I/O - MCARD - READ
but it says program data error what m i missing?
Anyone can guide me through writing the new ladder process?

Once you have your edits complete then you have to go TOOLS and choose Compile. Next go to FILE and select EXPORT then select Memory Card Format File,
Then select your Memory Card for the place to save the file to. Also make sure that only the file you want to load into the controller is the only file on the card.

Quote:

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Originally Posted by drdos

Once you have your edits complete then you have to go TOOLS and choose Compile. Next go to FILE and select EXPORT then select Memory Card Format File,
Then select your Memory Card for the place to save the file to. Also make sure that only the file you want to load into the controller is the only file on the card.

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Thank you very much. Exporting for memory card was the step i was missing.