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Wiren Board 4:Аппаратная часть/en: различия между версиями
Wiren Board 4:Аппаратная часть/en (просмотреть исходный код)
Версия 13:32, 17 июля 2015
, 8 лет назадНовая страница: «Wiren Board 4 controllers are equipped with two RS-485 ports. One of them is galvanic insulated, the other one is not. If the RS-485 network is quite large, it is…»
(Новая страница: «=== Example of device connection ===») |
(Новая страница: «Wiren Board 4 controllers are equipped with two RS-485 ports. One of them is galvanic insulated, the other one is not. If the RS-485 network is quite large, it is…») |
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Смотрите [[Special:MyLanguage/RS-485|RS-485]]. | Смотрите [[Special:MyLanguage/RS-485|RS-485]]. | ||
Wiren Board 4 controllers are equipped with two RS-485 ports. One of them is galvanic insulated, the other one is not. If the RS-485 network is quite large, it is better use the insulated port for connection. Lines A and B are connected to A and B terminals, respectively. The signal ground (if any) must be connected to the GNDiso terminal. | |||
A and B lines are often accompanied by another pair of wires used to power devices connected to the bus. In such cases it is necessary to use GND and Vout terminals. Current in power wires must not exceed 1 A. | A and B lines are often accompanied by another pair of wires used to power devices connected to the bus. In such cases it is necessary to use GND and Vout terminals. Current in power wires must not exceed 1 A. | ||