WBE2-I-CAN-ISO CAN Extension Module/en: различия между версиями
(Новая страница: «The CAN signals are output to the O1-O3 terminals of the extension module.») |
(Новая страница: «Pinouot: {| class="wikitable" !Terminal !Function |- |O1 |CAN L |- |O2 |CAN H |- |O3 |CAN GND (Isolated GND) |}») |
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The CAN signals are output to the O1-O3 terminals of the extension module. | The CAN signals are output to the O1-O3 terminals of the extension module. | ||
Pinouot: | |||
{| class="wikitable" | {| class="wikitable" | ||
! | !Terminal | ||
! | !Function | ||
|- | |- | ||
|O1 | |O1 | ||
Версия 16:41, 26 июня 2019
Hardware
The module is built on a physical layer chip TJA1051. CAN signals are galvanically isolated from the controller.
The module contains a 120 Ohm terminator between the H and L lines. To enable it, you need to close the jumper on the top side of the board.
Operation in UART-CAN mode
The WBE2-I-CAN-ISO module operates in UART-CAN mode. The UART-CAN bus (also called sometimes simply CAN or RS-CAN) uses the physical can layer for the half-duplex serial port of the UART.
The UART-CAN bus is mainly used in metering devices such as Mercury energy meters.
The module can be installed in MOD1 and MOD2 slots of the Wiren Board 6 controller.
Pinout
The CAN signals are output to the O1-O3 terminals of the extension module.
Pinouot:
| Terminal | Function |
|---|---|
| O1 | CAN L |
| O2 | CAN H |
| O3 | CAN GND (Isolated GND) |
Конфигурирование
Настройка осуществляется в веб-интерфейсе в раздел Configs => Hardware Modules Configuration.
В Internal slot 1/2 выбрать "WBE-I-CAN-ISO" и нажать Save.
Устройство определяется сразу же, перезагрузка не требуется.
Работа
В режиме UART-CAN модуль работает идентично модулю расширения RS-485, см. соответствующее описание.