If asked, "Is there really any difference between programmable logic controllers (PLCs) and programmable automation controllers (PACs)," the machine end user will likely answer, "No." Or that person might ask, "What is a PAC?" You may even get a few that will argue that no difference exists between the PLC and the PAC. Additionally, users may claim the PAC is just a new name and acronym created by the PLC vendor sales department to generate new sales. The fact is a PAC is very different from a PLC, and it is important for original equipment manufacturers (OEMs) and designers to educate their end users regarding the differences between a PLC and a PAC prior to purchase…Full Story
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