Why there is an error “No FFB of Type XXMIT Found” when I want to implement XXMIT Function Block from FFB Input Assistance.

This error doesn’t mean that you have not installed FFB Library Properly. Your Library is installed properly that’s you
are able to see the XXMIT Function Block in Types Library Browser.This error generally occurs when you are using
Quantum CPU which is having the Software Version less than V2.30.

In order to use XXMIT Function Block, upgrade the Quantum CPU OS version to greater than V2.30.