Later, Opto 22 introduced the " mistic " controller, which had many of the same features and functionality of a modern programmable automation controller.
2.
This led to the concept and realisation of a PAC-programmable automation controller-which is programmed in a modern programming language such as C or C + +,-that is an amalgamation of these three concepts.
3.
A programmable automation controller ( PAC ) is a compact controller that combines the features and capabilities of a PC-based control system with that of a typical PLC . PACs are deployed in SCADA systems to provide RTU and PLC functions.
4.
In 2007 the company introduced the SNAP PAC System, unifying the aforementioned elements into a fully integrated platform, adding higher powered programmable automation controllers with redundant Ethernet communications, new programming and HMI development software, higher density I / O modules, database connectivity tools and software that simulated the SNAP PAC controller hardware.
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