Can a $20 micro-controller equal a PLC for a real-world industrial control application?
By Doug Reneker, circuit designer on http://www.controldesign.com/
The “maker” world of basement robot builders continues to grow, with companies developing hardware and software to support all sorts of interesting applications. A number of micro-controllers have emerged to perform a wide variety of functions at very low upfront hardware and software costs.A large number of boards, including micro-controllers, field programmable gate arrays (FPGAs) and single-board computers, have emerged. Among these, Arduino and Raspberry Pi are two leading names,
Some industrial users might envision these platforms as a substitute for an entry-level PLC. After all, if an Arduino can control a robot for a STEM competition entry, why can’t it control an industrial robot, or a simple machine?