About Industrial automation

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Early PLCs were intended to change relay logic methods. These PLCs have been programmed in "ladder logic", which strongly resembles a schematic diagram of relay logic. RTU is a device put in in the sphere or maybe a remote locale from where it collects facts, codes and transmits processes at http://angelodhmqp.link4blogs.com/27223581/the-best-side-of-industrial-automation


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