Hi,
i'm trying to upload an old program (U90Ladder) which had russian translation in cyrillic for display on PLC (JZ20-T40).
Problem is when I download it to PLC there are only many "??????" on display. (see photos)
In U90Ladder, there are also some random characters.
PHOTOS: https://imgur.com/a/aadHilu
I'm 100% sure program was ok before, because this program is already working in machine we sold few years ago- now customer need new PLC with same program as spare part.
I tried:
-changing language to Russian cyrillic in U90Ladder,
-changing language on Windows,
-tried windows XP also.
I'm really thankfull for any advice or help.