How do MCGS and PLCs connect and work together?
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How do MCGS and PLCs connect and work together? What do upper-level and lower-level computers mean?
There is a communication protocol to support the connected hardware; the supervisor acts as the upper-level device while the workers function as the lower-level devices. The supervisor monitors and schedules the work of the lower-level devices, while the workers carry out their tasks according to the operation instructions and report back to the upper-level device