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Relay Module Modbus Management/en: различия между версиями
Relay Module Modbus Management/en (просмотреть исходный код)
Версия 14:52, 16 июля 2019
, 4 года назадНовая страница: «In the external control mode, the relay is triggered by the fall of the logic level: the external inputs are connected to the pull-up resistors to the +5V line an…»
(Новая страница: «=== External input control type selection === The relay modules have two modes of relay channel control: via external inputs and via RS-485 Protocol. In relay mod…») |
(Новая страница: «In the external control mode, the relay is triggered by the fall of the logic level: the external inputs are connected to the pull-up resistors to the +5V line an…») |
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In relay modules, you can select mode 0 when a button is connected to the external input (without locking), or mode 1 when a conventional switch (with locking) is used to control. Mode 3 disables external control, but it still retains the ability to control RS-485 and read the status of external inputs. Mode 0 is enabled by default. | In relay modules, you can select mode 0 when a button is connected to the external input (without locking), or mode 1 when a conventional switch (with locking) is used to control. Mode 3 disables external control, but it still retains the ability to control RS-485 and read the status of external inputs. Mode 0 is enabled by default. | ||
In the external control mode, the relay is triggered by the fall of the logic level: the external inputs are connected to the pull-up resistors to the +5V line and the relay of the corresponding channel is triggered when the input is connected to the GND. | |||
The relay status of each channel is stored in the controller memory until reboot, by default, when power is on, all relays are off. After initialization of the module, external inputs are polled and relays of all channels are transferred to the appropriate state. | |||
Тип внешнего управления можно выбрать для каждого канала отдельно через регистры 9 — (9+x). Для этого в holding-регистре 5 должно быть записано значение 0: | Тип внешнего управления можно выбрать для каждого канала отдельно через регистры 9 — (9+x). Для этого в holding-регистре 5 должно быть записано значение 0: | ||