When a PLC is used primarily to replace relays, timers, and counters, it's hard to beat the simplicity and usefulness of ladder diagram programming.Their ability to accept programming ...

PROGRAMMING METHODS In previous articles, I have discussed ladder logic, which is very much a sort of electronic schematic symbolization of the control system you are designing. This makes programming ...

Next time we’ll dig deeper into the ladder logic programming and continue to tie all of these concepts together. Sloatman is the director of engineering for SummitMedia’s Richmond, Va., radio stations ...