Traditional Culture Encyclopedia - Traditional festivals - What is the difference between relay control and PLC control?
What is the difference between relay control and PLC control?
Plc is superior to relay control in many aspects:
1. It has high reliability, strong anti-interference ability, convenient use and easy diagnosis and troubleshooting.
2. Perfect function, convenient installation and debugging, low maintenance cost and workload.
3. Small size and low energy consumption.
4.plc adopts contactless action, with fast response.
5. The relay has poor reliability, complicated circuit design and long maintenance time.
6.plc has sequential control.
opportunity
count
electric machine control
data processing
Closed-loop control and communication networking function, relay only has sequence control.
7. High precision of 7.plc in timer.
Wide timing range and convenient time adjustment.
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