Proview is an Open Source Process Control System. It is modern, powerful and general and contains all functions normally required for successful sequential control, adjustment, data acquisition, communication, supervision, etc.
The configuration of a Proview system is done graphically, making the application adaptation simple, reliable, and flexible. Proview is a distributed system, which means that the system can consist of several computers, connected via a network, preferably ethernet. A typical Proview system consists of one process control system and one or more operator stations. It is easy to configure one operating station to become the HMI-system of several control systems.
Programming is possible both with a graphical PLC-editor and with high level programming languages (such as C, C++, Java or FORTRAN). The concept of Proview is based on a soft-PLC solution which runs on standard computers with Linux as operating system.
The great advantage of using standard hardware and soft-PLC is that system size, properties and performance is mainly limited by the hosting operating system and its hardware. In Proview there are no limits in number of I/O, PID loops, PLC programs, counters etc. The minimum cycle time for a PLC loop is less than 1 ms.
Proview can communicate with other computers both via ethernet network (ip) and via serial mechanisms. Proview supports several different protocols, such as UDP or TCP sockets via ethernet and Siemens 3964R on serial links.
The most common used I/O system in Proview is Profibus/DP, a robust and well-tested field bus. There are also support for Modbus TCP, an USB I/O from Motion Control and PSS9000. The Modular design of the I/O system and the fact that Proview is based on Linux and high level languages makes it easy to implement other I/O systems with available drivers or develop new ones.
Proview is the only control system on the market that can work in a truly object oriented way. Programming can be made in a traditional way with simple function blocks and simple signals. Proview though has support for creating complex objects and function objects that work upon them.
Object oriented concepts such as inheritance, methods and aggregates are supported.
Proview is probably the first Open Source system for process control in the world. Originally developed in Sweden by Mandator and SSAB Oxelösund as a process control system based on standard computers, the system has become a fully-fledged, integrated and low-cost solution that is running on standard PC's with Linux operating system.
Proview is Open Source and the license is GNU/GPL. You can download Proview, use it, modify it and redistribute it as much as you like as long as you follow the license terms.