Idec Corporation sets the benchmark for micro PLCs. The Micro³® combines the all-in-one convenience of an integrated controller with the features and flexibility of a modular PLC.

Whether the application is simple or complex, the Micro³'s additional built-ins add value, convenience, and security. A powerful instruction set with plenty of user memory is available (over 1000 steps) in non-volatile memory. A programmable password assures safety and security by limiting access to programs. The clock/calendar allows real-time-based controls and event monitoring. Built-in potentiometers can vary presets for timers, counters, registers, and high speed counters. The Micro³ series is UL and CE approved.

The Micro³ controller is tiny and powerful. The smallest controller in the series is just 4.13"W x 3.35"H x 2.36"D containing six inputs and four outputs (ten I/O). The Micro³ can be used in simple or complex applications up to 48 I/O.

For example, use an AC input model for basic retrofitting. While in more demanding applications, the Micro³ can be programmed to accept an encoder input, control a stepper motor, and exchange data with other Micro³s that are performing similar tasks. The Micro³'s tool kit for high-speed applications includes a high-speed scanning mode, programmable input response times, 1 msec timing increments, and catch inputs which detect input status regardless of scan.

The Micro³'s unique I/O system saves money by eliminating unnecessary I/O. The system consists of three different size modules, each with integrated CPU, I/O, memory, and power supply. Any module can either stand alone or connect with another module. Thus, with between ten and 48 I/O, nine different combinations of inputs and outputs can be built. By taking advantage of the data exchange network, up to seven modules can be connected with each executing a unique control system.

The Micro³ is also capable of processing analog input and analog output. The analog I/O modules support 0-10 VDC, 1-5 VDC, ±5 VDC, ±10 VDC and 4-20 ma. The Micro³ instruction set includes various comparison and arithmetic functions to complement analog I/O.

Automation system designers can program the Micro³ with a program loader, which uses a menu and fill-in-the-blank format on a four-line display. Up to 31 programs can be stored on an optional memory card. WindLDR (Windows based) or Cubiq (DOS based) programming software enable designers to program the Micro³ series in ladder logic using a PC. WindLDR or Cubiq can program, monitor, debug, and document all Micro³ automation projects.