RS-485/en: различия между версиями
| (не показано 6 промежуточных версий этого же участника) | |||
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Up to 256 devices can be connected to the bus. Transmission speed is up to 115200 bit/s.Line length is up to 1200 meters. | Up to 256 devices can be connected to the bus. Transmission speed is up to 115200 bit/s.Line length is up to 1200 meters. | ||
You can connect the following devices to the Wiren Board controller Via the RS-485 bus: | |||
* [[Special:MyLanguage/Периферийные устройства с интерфейсом RS-485 серии WB-xxxx | devices of our production with the RS-485 interface | * [[Special:MyLanguage/Периферийные устройства с интерфейсом RS-485 серии WB-xxxx | devices of our production with the RS-485 interface]], | ||
* Mercuriy and Milur counters, | * Mercuriy and Milur counters, | ||
* [[ | * [[Поддерживаемые устройства/en#Connected via RS-485 | some other devices]]. | ||
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See article [[RS-485:Основы функционирования интерфейса RS-485|Basics of RS-485 interface operation]]. | See article [[RS-485:Основы функционирования интерфейса RS-485|Basics of RS-485 interface operation]]. | ||
The Wiren Board devices use the Modbus Protocol on top of the RS-485. [[ | The Wiren Board devices use the Modbus Protocol on top of the RS-485. [[Протокол Modbus/en| Modbus protocol]]. | ||
==How to lay the bus correctly== | ==How to lay the bus correctly== | ||
See article[[RS-485:Физическое подключение| RS-485:Physical connection]]. | See article[[RS-485:Физическое подключение/en| RS-485:Physical connection]]. | ||
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*As default [[Драйвер wb-mqtt-serial/en| wb-mqtt-serial driver]] manages devices connected to Wiren Board controller via RS-485(the previous driver was ''wb-homa-modbus''). It allows you to work with connected RS-485 devices via [[MQTT/en| MQTT ]]message system. | *As default [[Драйвер wb-mqtt-serial/en| wb-mqtt-serial driver]] manages devices connected to Wiren Board controller via RS-485(the previous driver was ''wb-homa-modbus''). It allows you to work with connected RS-485 devices via [[MQTT/en| MQTT ]]message system. | ||
*:If you want to work with RS-485 port directly without using this driver - disable it, otherwise it will write to RS-485 port. | *:If you want to work with RS-485 port directly without using this driver - disable it, otherwise it will write to RS-485 port. | ||
*[[Работа с последовательным портом из Linux| | *[[Работа с последовательным портом из Linux/en |Working with a serial port in Linux]] | ||
*[[Доступ к порту RS-485 контроллера Wiren Board с компьютера| | *[[Доступ к порту RS-485 контроллера Wiren Board с компьютера/en|Access to the RS-485 port of the Wiren Board controller from a computer]] | ||
*[[UART_Communication_Settings|UART Communication Settings for Modbus devices]] | *[[UART_Communication_Settings/en|UART Communication Settings for Modbus devices]] | ||
Текущая версия на 17:23, 3 июня 2019
RS-485 is two-wire bus communication standard.
Up to 256 devices can be connected to the bus. Transmission speed is up to 115200 bit/s.Line length is up to 1200 meters.
You can connect the following devices to the Wiren Board controller Via the RS-485 bus:
- devices of our production with the RS-485 interface,
- Mercuriy and Milur counters,
- some other devices.
Basics of the RS-485 interface
See article Basics of RS-485 interface operation.
The Wiren Board devices use the Modbus Protocol on top of the RS-485. Modbus protocol.
How to lay the bus correctly
See article RS-485:Physical connection.
Adding a device to the web interface
Configuration takes place via the Configs веб-интерфейса
After connecting the RS-485 device to the controller, you need to configure it to appear in the web interface. See the instructions in article RS-485:Настройка через веб-интерфейс.
Working with RS-485 port of the controller using its own software
- As default wb-mqtt-serial driver manages devices connected to Wiren Board controller via RS-485(the previous driver was wb-homa-modbus). It allows you to work with connected RS-485 devices via MQTT message system.
- If you want to work with RS-485 port directly without using this driver - disable it, otherwise it will write to RS-485 port.
- Working with a serial port in Linux
- Access to the RS-485 port of the Wiren Board controller from a computer
- UART Communication Settings for Modbus devices