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, ...

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 ...

In part one of this series, we looked at the PLC’s internal architecture, briefly discussed Ladder Logic programming, Human-Machine Interfaces, advantages of the PLC’s ability to react consistently ...

PLC Counters and Timers provides an overview of the functions of counter and timer instructions in a PLC ladder logic program. Counter and timer instructions are internal features of a program that ...

DirectSOFT5, 32-bit Windows certified programming software for the entire DirectLOGIC line of PLCs, contains many new features that make ladder logic programming faster and easier. The most important ...