As a relative newcomer, I was surprised to find that i was limited to 4 "nested" output branches in RS500 ladder logic. OK, for sometime now i have worked around that without any real issues. However, in reading code from others (a great way to learn), i came across about 50+ output branches on a single rung - well, it turns out that they were "parallel" branches - like whose to know? Anyway - can someone please explain the difference between these types? I haven't gotten myself in trouble yet, but i suppose it could happen. I am guessing there might be some difference in execution sequence? I didn't find anything in the pdf manuals.
narlin
narlin