Traditional Culture Encyclopedia - Traditional virtues - What is the biggest difference from the traditional relay control system?
What is the biggest difference from the traditional relay control system?
Among them, the biggest difference from the traditional relay control system is cyclic scanning. Cyclic scanning is one of the biggest characteristics of PLC, which is essentially different from the traditional relay control system. The working mode of PLC is serial, which avoids the contact competition in relay control system to some extent.
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