PLC programming courses

// The starting point for every PLC program: combine inputs with AND, OR and XOR, then build the seal-in circuit that lets a motor keep running after you release the start button. Starts with Lamp Follow.

// Compare the current input with its previous-scan state to detect a transition, turn that edge into a one-scan pulse and make a held button act only once. Starts with One-Scan Delay.

// Timers are how a PLC waits. Start with on-delay and off-delay, combine timing with one-shots, then build retained and drift-resistant time patterns. Starts with On Delay.

// Counters track how many times something happened. Count parts off a line, count up and down against a target, and keep a count inside sensible bounds. Starts with Count Up.

// Move beyond on/off. Compare two values, work with signs and magnitudes, wrap with modulo, hold a result inside a safe range, then apply signed math to a drive reference. Starts with Sign Check.

// An analog input arrives as raw counts, not degrees or litres per minute. Scaling converts it, and the same maths drives a speed reference back out to a drive. Starts with Scale.

// Clean up noisy digital and analog signals, preserve and derive useful measurements, then apply them to tank level control and process alarms. Starts with Debounce.

// Read and build packed device registers, then use masks to keep, force, replace or remember selected bits without disturbing the rest of the word. Starts with Word Invert.

// Start with explicit states and transition conditions, then build increasingly realistic timed and interruptible machine cycles. Starts with Single-Trigger Sequencer.