485總線面板接線圖

2018-09-23 22:12:44 admin
485總線面板,有時我們也簡稱為總線面板。布線的概念是“手拉手”,即將每個終端設備的:正、負、A、B等4根線分別首尾相連,直至連帶RCU主機的485通訊口即可。其優點是布線節約,缺點是終端設備成本較高、對施工人員要求較高,一旦個另設備出現問題,查找維護比較困難。除非現場無法正常布線原因,除空調控制器等設備外,不主張使用485總線開關面板。
 
485 bus panel, sometimes we also referred to as the bus panel. The concept of cabling is "hands-in-hand". That is, the four lines of positive, negative, A, and B of each terminal device are connected end to end, and they can be connected to the 485 communication port of the RCU host. The advantage is that wiring is saved. The disadvantage is that the cost of the terminal equipment is higher and the construction personnel are more demanding. If there is a problem with another equipment, it is difficult to find and maintain it. Unless the site can not be normal wiring reasons, in addition to air conditioning controllers and other equipment, it does not advocate the use of 485 bus switch panel.

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