The ABACUS4 process control system is a block based software system for the real time control of industrial and other continuous and batch processes. Also includes SCADA features, unlike most other SCADA systems price is not based on I/O count, but CPU count.

It runs on standard intel PC hardware under the Linux operating system. It is supplied by MCH Konsulting Sweden, based in Västerås Sweden. A web site exists at

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