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 ...

The PLC uses a programming language based upon readily identifiable symbols common to motor control. Hand-held programmers or PCs are the most common methods for programming the PLC. Figure 2 on page ...

When learning ladder logic, I was told that some new PLC systems were moving to scripted programming languages. My instructor assured us that we would not need to know anything other than ladder ...