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Wiren Board 6: Hardware/en: различия между версиями
Новая страница: «== RS-485 line terminators == According to the RS-485 standard, the line must be terminated with 100 — 120 Ohm resistors at both ends. To simplify installation,…»
(Новая страница: «'''Attention!''' The input voltage is connected directly to the '''Vout''' terminal: make sure that the devices connected to it are rated for the appropriate volt…») |
(Новая страница: «== RS-485 line terminators == According to the RS-485 standard, the line must be terminated with 100 — 120 Ohm resistors at both ends. To simplify installation,…») |
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'''Attention!''' The input voltage is connected directly to the '''Vout''' terminal: make sure that the devices connected to it are rated for the appropriate voltage! | '''Attention!''' The input voltage is connected directly to the '''Vout''' terminal: make sure that the devices connected to it are rated for the appropriate voltage! | ||
== | == RS-485 line terminators == | ||
According to the RS-485 standard, the line must be terminated with 100 — 120 Ohm resistors at both ends. To simplify installation, the controller has built-in terminators, which can be activated by jumpers of RS-485 (1 or 2) TERM on the front terminal panel of the controller. | |||
Также на линиях стоят резисторы защитного смещения, failsafe bias,(растяжка линий A и B), по умолчанию включены. Если контроллер используется в режиме "slave", то эти резисторы необходимо отключить (делается программно управлением соответствующими GPIO: RS-485-1 failsafe bias и RS-485-2 failsafe bias ). | Также на линиях стоят резисторы защитного смещения, failsafe bias,(растяжка линий A и B), по умолчанию включены. Если контроллер используется в режиме "slave", то эти резисторы необходимо отключить (делается программно управлением соответствующими GPIO: RS-485-1 failsafe bias и RS-485-2 failsafe bias ). | ||