Question:  What Programming Languages are supported by Proficy Machine Edition (ME)? Answer:  The Proficy Machine Edition (ME) software Logic Developer PLC supports Ladder Logic, Structured Text, Function Block Diagrams, and Instruction Listing programming. Not all of these are supported by all CPUs; for example, Function Block Diagrams are only supported in Rx3i and Rx7i systems.  The standard version can program GE Fanuc Versamax, GE Fanuc Versamax Micro, and GE Fanuc 90-30 PLCs, the the Professional Version is required to program GE Fanuc 90-70, Rx3i and Rx7i systems.