Advantages, disadvantages, and selection of hardwired connections and bus connections
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For the transmission of instrument signals, wired connections and bus connections can be used. Typical field instruments use wired connections, while for motors, compressors, or other process units, buses are commonly used for data transmission. But it has not been very clear until now; I would like to ask everyone, what is the difference between them? Additionally, what are their respective advantages and disadvantages? What are the selection criteria? Can it be said that hardwired connections offer better security and transmission speeds compared to buses? Thank you all first!
Hardwired systems allow for accident probability analysis using determinism, whereas buses transmit data through digital technology, making it impossible to determine exact accident probabilities； On the other hand, it features high bus speed, saves cable space, and has strong interference resistance.