WBE2-I-CAN-ISO CAN Extension Module/en: различия между версиями
(Новая страница: «Choose WBE-I-CAN-ISO in Internal slot 1/2 and click Save.») |
(Новая страница: «The device is detected immediately, no reboot is required.») |
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| Строка 45: | Строка 45: | ||
Choose WBE-I-CAN-ISO in Internal slot 1/2 and click Save. | Choose WBE-I-CAN-ISO in Internal slot 1/2 and click Save. | ||
The device is detected immediately, no reboot is required. | |||
== Работа == | == Работа == | ||
Версия 16:43, 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) |
Configuration
Configuration is set in the web interface: Configs section => Hardware Modules Configuration.
Choose WBE-I-CAN-ISO in Internal slot 1/2 and click Save.
The device is detected immediately, no reboot is required.
Работа
В режиме UART-CAN модуль работает идентично модулю расширения RS-485, см. соответствующее описание.