Traditional Culture Encyclopedia - Traditional festivals - What is the difference between PLC and relay control?
What is the difference between PLC and relay 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 the functions of sequence control, timing counting, motion control, data processing, closed-loop control and communication networking, and relays only have sequence control.
7. Timer PLC has high precision, wide timing range and convenient time adjustment.
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