.X vs .%X

PLCnext Engineer
1

Hello,
I am a new PLCnext user. I am doing some bit level addressing, and wondering what the difference is between .X and .%X ? I am using .X and my code works the way I want, but was wondering what the difference is?? I looked through the Help and the PLCnext Info Center, but couldn’t find an explanation.

Thank you!

Adrian

2

Hi,
.X is the older format according to IEC61131-3 Version 2. .%X is the new format according to IEC61131-3 Version 3. Both do the exact same thing. The older standard is supported for compatibilty reasons and for new projects it is recommended to use the new format.

3

Thank you! Appreciate the quick response!