Programmable Logic Controller (PLC) - A PLC that supports timer functions. PLC Programming Software - Software such as RSLogix, TIA Portal, or CX-Programmer. Computer System - For programming and ...

The ladder logic programs for ON-delay, OFF-delay, and Retentive timers were successfully implemented and tested. The observed outputs matched the expected behavior of each type of timer, ...

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 in ladder ...