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{{DISPLAYTITLE:MicroSD extension module (WBE-MICROSD)}} | |||
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CAN interface signals are galvanically isolated from the controller. | CAN interface signals are galvanically isolated from the controller. | ||
Can be installed only to MOD2 extension slot. | |||
The module contains a 150 Ohm terminator between the H and L lines. To enable it, close the jumper on the top edge of the board. | |||
== Operation in UART-CAN mode == | |||
The WBE-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. | |||
In UART-CAN mode, the module can be installed in any expansion slot, so you can install two WBE-I-CAN-ISO modules | |||
== Pinout == | |||
= | |||
CAN signals are routed to the expansion module terminals O1-O3. | |||
Pinouot: | |||
{| class="wikitable" | {| class="wikitable" | ||
! | !Terminal | ||
! | !Function | ||
|- | |- | ||
|O1 | |O1 | ||
Строка 56: | Строка 43: | ||
|CAN GND (Isolated GND) | |CAN GND (Isolated GND) | ||
|} | |} | ||
== Configuration == | |||
== | [[Файл:Hwconf-can.jpg|thumb|300px|CAN extension module]] | ||
[[Файл:Hwconf-can.jpg|thumb|300px| | Configuration is set in the web interface: Configs section => Hardware Modules Configuration. | ||
For CAN mode: in Internal slot 2, select "WBE-I-CAN-ISO" and click Save. | |||
For UART-CAN mode: make sure that the corresponding slot (Internal slot 1 or Internal slot 2) is set to "None". | |||
The device is detected immediately, no reboot is required. | |||
== Operation == | |||
In CAN mode, it is defined as can1. About can on Linux, see [[CAN/en| CAN]]. | |||
Module operates in UART-CAN mode identically to the RS-485 extension module, see [[Wiren Board 5: Модуль расширения RS485-ISO/en|description]]. | |||
== Compatibility table == | |||
{| class="wikitable" | {| class="wikitable" | ||
! | !Mode | ||
! | !Controller | ||
! | !Audit | ||
!MOD1 | !MOD1 | ||
!MOD2 | !MOD2 | ||
Строка 107: | Строка 80: | ||
|<nowiki>+</nowiki> | |<nowiki>+</nowiki> | ||
|} | |} | ||