Wiren Board 5:Аппаратная часть/en

Wiren Board 4

Specifications

Wiren Board 4

General
CPU	Freescale i.MX287 454 MHz ARM9
RAM	DDR2 SDRAM 128 MB
ROM	4 ГБ eMMC
Operating System	Debian Linux 7.0. Mainline kernel 3.19.
Dimensions	6U DIN-rail mount, 106.25x90.2x57.5 mm. PCB size: 103x87x20 mm.
Operating conditions	Operating temperature- -25...+85 С (-40..+85 С by request).

Беспроводные интерфейсы
Wi-Fi	802.11 b/g/n 2.4 ГГц
GSM/GPRS	850/900/1800/1900 МГц. GPRS class 12. 85.6 kbps (downlink). SIM-карта формата microSIM
Bluetooth	4.0, Bluetooth Low Energy
Пакетное радио 433 МГц	модуль RFM69H. Для связи с устройствами Noolite, датчиками Oregon
Z-Wave	(опция)
ИК-порт	разъём для подключения внешнего приемопередатчика

Wired Interfaces
Ethernet	10/100 Mbit/s, 8P8C connector, passive PoE
USB 2.0	Single port. USB Host or USB Device mode of operation.
Audio output	S/PDIF Digital audio. TOSLINK or RCA connector
2xRS-485	Without galvanic isolation. Software support for Modbus RTU, Uniel, HDL, various EM-meters protocols included.
CAN	multiplexed with one of RS-485.
Отладочная консоль	Debug UART USB-UART adapter is used to connect to PC.
1-Wire	For digital temperature sensors

Подключение датчиков
4x АЦП	диапазон 0-28V
2xВходы для резистивных датчиков	Подключение термисторов на 10 кОм, использование как АЦП до 3.3V.
4x DI (цифровой вход)
Outputs
4x"Open collector"	28V/2A, for driving external contactors, relays, LED strip lights, etc.

Other Interfaces
2xGPIO	are multiplexed with other inputs/outputs
1xBuzzer	buzzer/beeper.
Real-time clock	RTC 1220 coin lithium cell
Watchdog timer	Separate hardware watchdog to perform full reset of the device
2x Extension module slots	internal
1xI/O module connector	Up to 8 I/O modules are connected in series

Питание
Напряжение питания	7-28В
Потребляемая мощность	<3 Вт (пиковая - до 12 Вт)
Работа от резервного аккумулятора	Модуль резервного питания (Опция)
питание по витой паре	Passsive Power over Ethernet

Terminal blocks

Input and output protection schematic

Some terminal blocks can be used to perform more than one function. See the detailed description of input/output and the Port multiplexing article.

подпись	Max. V, I	cостояние по умолчанию	Функуции
Верхний ряд, левый блок
Vin	28V		Входное напряжение
GND			"земля", минус блок питания
Верхний ряд, правый блок
O1			Входы/выходы модуля расширения
O2
O3
O1			Входы/выходы модуля расширения
O2
O3
Нижний ряд, правый блок
A1	28V , 2A	High Z	Выходы "открытый коллектор", ADC
A2
A3
A4
R1	5V	High Z	Резистивные датчики, ADC, цифровые входы (GPIO) без подтяжки
R2
GND
W1	30V	3.3V	1-Wire, GPIO
5V out	5V, 0.5A	5V	Выход 5V. Отключение при превышении тока. Программное управление.
A	30 V	0V	порт RS-485 (/dev/ttyAPP1)
B	30 V	+5V
L	30 V	0V	Порт CAN или RS-485 (/dev/ttyAPP4). Подключение RS-485: A к клемме L, B к клемме H.
H	30 V	+5V

Input protection

1. All inputs are protected from applying the power supply voltage (up to 24 V) and transient noise.
2. Wiren Board 5 is protected against reverse polarity
3. Low-side FET switches on Ax inputs are protected from negative voltage spikes from inductive loads.

Multifunctional inputs/outputs A1-A4

Equivalent circuit of A1-A4 channels

Multifunctional channels consist of input and output stages are connected in parallel, as well as protective diodes (connected to one terminal of the channel).

Output stage consists of the Tx switch. The Tx switch can connect the corresponding output with ground. The state of the switch is controlled by logic circuits inside the controller. The switch may be one of 2 states:

• Active (closed); channel output is connected to ground (0V)

• Inactive (open), high impedance.

Such outputs are called “open collectors”

Input stage of Ax channel consists of an analogue-to-digital converter ADCx and an input resistor Rx (100kOhm).

The ADC has a high input impedance, so it doesn't affect the channel operation even if the channel works as output.

In input mode the Tx switch is inactive (open) and, thus, does not affect voltage measuring at the channel terminals. Input impedance in input mode is determined by the Rx resistance.

If the channel terminal is left floating, the input voltage measured by ADCs is pulled down to zero by the Rx resistance.

Ax channels also work as discrete inputs. The logic high state is 3V or higher, the logic low is 1.5V or lower.

R1 and R2 Resistive Inputs

Rx equivalent circuit

By default each Rx terminal is connected to internal adjustable current source. By measuring the voltage drop across terminals, the Wiren Board software calculates the resistance of the sensor connected to the corresponding terminal.

Each input can also be switched to a general-purpose analog input.

In this mode, the internal current source is turned off. Voltage measurements in the range of 0-2.5V can be performed.

R1 and R2 inputs also work as discrete inputs.

While the internal current source is activated (as by default) the input is pulled high to the internal 3.3V power rail. If the input is left floating, the corresponding discrete input state is a logic high.

If the input is connected to the signal ground the input state is a logic zero.

Therefore, external buttons, sensors, etc. should be connected between the Rx and GND terminals.

In the alternate general-purpose ADC mode (with current source disabled), the input is pulled down to the ground. In this case, a logic zero corresponds to the floating input, while logic high corresponds to the voltage across terminals higher than 2.5V.

In this mode one should connect external buttons, sensors, etc. between the Rx terminal and either "5V out" or positive power supply terminal.

1-Wire and +5V output

1-Wire - шина для подключения внешних датчиков по двум (или трём) проводам. Так как это шина, можно подключить несколько устройств на один порт 1-Wire.

You may find convenient to use +5V output to power external sensors or circuits.

The output is protected against short circuit and over-current condition. The output remain fully functional while working on backup battery. It can also be switched off from the software.

I/O Modules

I/O modules are connected to Wiren Board 5 side connector on the right.

Up to 8 I/O modules can be connected in series: up to 4 input modules (type I) and up to 4 output modules (types O and IO). Attached I/O modules are automatically detected by the controller.

One can connect up to 4 modules in arbitrary order. Otherwise, one must connect "type I" modules first, then "type O" and "type IO" ones.

The detailed description of the I/O modules can be found in Special:MyLanguage/Модули ввода-вывода article.

Extension modules

Wiren Board 5 has two internal extension slots. Each extension module has 3 dedicated terminal blocks labeled O1-O3.

When inserted, the extension modules are fixed in place by plastic enclosure.

Please see the following articles for the detailed description:

Special:MyLanguage/Модули расширения

Power Supply

Wiren Board 5 power distribution diagram

External power source

Allowed supply voltage range is 7-28V. The average power consumption of the Wiren Board 5 is less than 3W. However the GSM modem can temporally consume up to 8 W. Therefore, it is recommended to use at least 10W power source.

A standard 5.5x2.1mm socket is provided for wall power supply. Input power can also be supplied to Vin and GND terminals.

Power over Ethernet

It is possible to power the device via an Ethernet cable. Ref.Power over Ethernet.

Battery

Wiren Board allows to connect internal WBMZ-BATTERY backup power supply module with Li-Ion (Li-Pol) battery.

Operation with screw terminals

Working with WAGO 250 terminals

В качестве интерфейсных клемм в контроллере применены клеммы "тип 250". Это самозажимные клипсы. При вставке очищенного одножильного провода в гнездо, он автоматически зажимается пружинной защѐлкой. Для вставки многожильных проводов, необходимо отжать пружину, нажав на кнопку клипсы. Кнопка имеет паз под шлицевую отвертку. Для извлечения провода, нужно отжать пружину, нажав на кнопку клипсы, и вытащить провод.

Антенны Wi-Fi, GSM, 433MHz

Антенны Wi-Fi, GSM и радио 315/433MHz подключаются к SMA разъемам.

При слабом сигнале GSM рекомендуется использовать выносную антенну и располагать ее вдали от контроллера.