Locally made embedded controller
14 October 2015
Computer/Embedded Technology
The locally manufactured MSC0108 single-board controller offers flexible, cost effective control via BASIC programming. Compared to a programmable logic controller (PLC), it provides programming flexibility over and above the use of simplistic ladder logic or statement lists, as well as speed benefits: simple I/O manipulation will run at several hundred kilohertz, enabling motion control to be effected without a separate add-on motion controller.
Measuring 130 x 130 mm, the controller features a power supply that can be driven directly from mains power; RS-232 programming/communications port; LCD display port; 8 opto-isolated digital inputs with isolated 12 V supply; and 8 Darlington NPN digital outputs. It is powered by a 40-pin 18F452 Microchip processor and provides direct access to 6 analog processor inputs (10-bit, 0 – 5 V), I²C interface for I/O extension etc, and I²C 24LC512 memory on board. All semiconductors are socketed for easy field repair.
The onboard processor is pre-programmed with a bootloader ready for the Melabs (BASIC) programming environment. Using the Melabs compiler facilitates fast, structured code development and produces fast, optimised machine-ready code which is downloaded via the RS-232 serial port. After programming, the serial port is available to enable the board to communicate with other devices.
For more information contact Glyn Craig, Techlyn, +27 (0)11 835 1174, glyn@techlyn.co.za
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