Small-scale Modular Laboratory Control System

For direct process control are most frequently used control systems based on PLCs (Programmable Logic Controllers), industrial controllers and other standard control systems. Applications based on standard industrial control systems and industrial serial networks are usually too expensive for small and very small application. For that reason has been proposed and developed small, highly modular microcontroller based control/measurement system. This project has been solved in a framework of FRVŠ G1/2002. Mentioned small control system has been realized by intensive cooperation of students and post-gradual student. System is based on individual modules like CPU modules, HMA modules, IO modules, communication interfaces etc. The main criteria for developing of that system has been minimization of total cost with regard to maximal utility value and technological abilities of system. There were implemented standard open serial buses and open protocols in the communication subsystem. License-free buses and protocols have been implemented into the system.