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Wiren Board 6: Hardware/en: различия между версиями
Новая страница: «Also there are the protective resistors of the offset on the lines, fail safe bias,(stretching of lines A and B) are enabled by default. If the controller is used…»
(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: «Also there are the protective resistors of the offset on the lines, fail safe bias,(stretching of lines A and B) are enabled by default. If the controller is used…») |
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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. | 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. | ||
Also there are the protective resistors of the offset on the lines, fail safe bias,(stretching of lines A and B) are enabled by default. If the controller is used in the "slave" mode, then these resistors must be disabled (done by software control of the corresponding GPIOs: RS-485-1 failsafe bias and RS-485-2 failsafe bias). | |||
== Питание == | == Питание == | ||