Depending on what you want to do might be of interest to you.
From their page:
This is a project to create and distribute a PLC-like program for Linux (PLC = Programmable Logic Controller), licensed under the GNU GPL.
We take advantage of the fact that we have an underlying operating system and use its features to make the MatPLC modular. One module could be a plc5 emulator, that executes plc5 code. Another module, already written, is a PID loop. A different module handles I/O.
Currently, we are in rather early stages: we have a simple IL-style language for logic modules (or C can be used), a signal-processing module which includes a PID loop, an I/O module or two and some simple HMI modules.
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At 07:47 PM 11/4/02 -0500, wanliker@... wrote:
Does anyone on the list have a source of low cost PLC'S, Programmable Logic
Controllers, available with either free or very low cost programming
software?
I think these would be a natural for control of additional equipment in CNC
operated equipment.
thanks,
bill
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