[cyberaxe]

Some of these relay components are real and many more of them are logical, or, for a better word, virtual, as they only exist in the mind of the PLC.

.....ah.....

.....the dredded logic statement.....

.....(those will toss the operators a "loop").....

[Cold Heat]

.....the dredded logic statement.....Yes, most of it is virtual but on the stuff I used the virtual statements were a different color. The feedback loops from the switches and sensors and incremental generators flashed and/or had a ID#.