Ringdale makes a network and web-managed PLC, with 16 inputs and eight outputs, flash programmable, and a power supply and battery charger that can keep the controller running fully for up to eight days.

Toshiba makes small PLCs and Micro PLCs, which are expandable and feature pulse/PWM output for stepper motor control, large memory, 8k program, 4k data registers, and 256 timers & counters, ASCII message storage, and uses a stored program cyclic scan system.

National Instruments makes programmable automation controllers for use in communication, data logging, advanced control, and signal processing with motion, rugged hardware performing motion, process control, vision, and logic functions.