Ambientika RS485 Shirye-shiryen Sud iska
Waya
In installations connecting several ventilation units, serial communication occurs via an RS485 interface. The connection occurs via the differential signal lines A, B and a common earth line (GND). The units are connected to each other in a bus topology. It is mandatory to connect a terminating resistor of 120 ohms between line A and line B on the last physical unit of the bus line, to ensure the signal quality.
Terminal 3: B
Terminal 4: A
Terminal 5: GND
In addition to the correct wiring of the RS485 lines, a manufacturer-specific interface module is required for integration into various automation systems: for KNX-based systems, an RS485 extension (e.g. as a KNX-TP/RS485 gateway) is available, which converts the levels and protocols between the KNX bus and the RS485 devices. In Loxone systems, the official Loxone RS485 extension is used instead, which is integrated directly into the Loxone Miniserver environment.
When selecting the appropriate interface, it is particularly important to make sure that it is not a Modbus RS485 gateway, but a transparent, serial RS485 gateway. Südwind uses proprietary protocols that do not match with the Modbus standard.
Saitunan sauya DIP
As the central control occurs via KNX or Loxone, the system completely takes over the tasks of the wall panel. The main unit is configured as a master with wall panel.
Duk sauran raka'a a cikin tsarin an saita su azaman bayi ta hanyar sauya DIP. Dangane da aikace-aikacen, don exampA matsayin tsarin samarwa da shayewar iska, ana iya sarrafa rukunin bayi ko dai tare ko a daidaita.
Master mit Fernbedienung = Master with remote control
Master mit Wandpanel = Master with wall panel
Slave gegenläufig Master = Slave – Master operate asynchronously
Slave gleichläufig Master = Slave -Master operate synchronously
Parametrization
Serial sadarwa sigogi da za a saita a cikin tsawo na RS485:
- baud rate 9600 [bit/s]
- 8 data bit
- 1 tasha bit
- babu daidaito
Ana aika saƙon daga cibiyar sarrafawa zuwa duk raka'o'in da aka haɗa a tazarar 500 ms.
These messages consist of a sequence of bytes in hexadecimal numbering (hex-numbers). Each element, such as \x02 or \x30, represents a single byte in hexadecimal format.
Status enquiry
Ana aika binciken matsayi daga kulawa ta tsakiya kuma sashin Jagora ya kimanta shi. Yayin aika wannan binciken, cibiyar kulawa ta tsakiya tana dakatar da aika saƙonni na tsawon daƙiƙa 3, don tabbatar da akwai layin.
| Matsayi | Umurni |
| Status enquiry | \x02\x30\x32\x30\x32\x03 |
If there is no active sensor or status, the Master unit replies with a 11 bytes long message in the following hexadecimal format: \x02\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x03.
The first byte \x02 sets the beginning of the message (start frame) and is followed by two bytes \x30\x30 representing the „status message“ (\x30 corresponds to “0” in ASCII-characters).
The following 8 bytes represent the single status registers. Each of these bytes corresponds to a specific message. Only the first four registers are used: The first register stands for the twilight sensor, the second and the third for the filter change alarm and the fourth one for the humidity alarm. A received byte \x30 corresponds to “0” in ASCII code. That means, that the relevant sensor or status is not active. \X31 corresponds to “1” and indicates an active status.
The message ends with the byte \x03 which is a stop bit (end frame) and sets the end of the transmission.
Ana iya sake saita ƙararrawar canjin tacewa tare da umarni.
Saƙonni
A cikin sakin layi na gaba an bayyana umarnin guda ɗaya da ayyukan da suka dace. Kamar yadda aka ambata a sama, ana buƙatar a aika umarni daga sashin kulawa na tsakiya zuwa duk raka'o'in da aka haɗa a tazarar 500 ms.
| Yanayin | Umurni |
| Motor off, panel closed | \x02\x30\x31\x30\x30\x30\x30\x30\x31\x03 |
| Motor in pause, panel open | \x02\x30\x31\x32\x30\x30\x30\x32\x31\x03 |
| Motor off, reset filter change | \x02\x30\x31\x30\x30\x30\x31\x30\x30\x03 |
Hanyar juyawa - don misaliample lokacin sauyawa daga ci zuwa hakar - ana iya canza shi kawai idan an kashe motar a baya. Idan motar tana kunne, dole ne a aiwatar da umarnin "dakatawar motar" don guje wa lalacewar wutar lantarki.
Yanayin manual: the Slave sets the direction of rotation via DIP-switches according to the predetermined configuration.
| Manual mode, humidity level 1 | Umurni |
| Extraction Master level 0 | \x02\x30\x31\x32\x34\x30\x30\x32\x35\x03 |
| Extraction Master level 1 | \x02\x30\x31\x32\x35\x30\x30\x32\x34\x03 |
| Extraction Master level 2 | \x02\x30\x31\x32\x36\x30\x30\x32\x37\x03 |
| Extraction Master level 3 | \x02\x30\x31\x32\x37\x30\x30\x32\x36\x03 |
| Intake Master level 0 | \x02\x30\x31\x32\x38\x30\x30\x32\x39\x03 |
| Intake Master level 1 | \x02\x30\x31\x32\x39\x30\x30\x32\x38\x03 |
| Intake Master level 2 | \x02\x30\x31\x32\x41\x30\x30\x32\x42\x03 |
| Intake Master level 3 | \x02\x30\x31\x32\x42\x30\x30\x32\x41\x03 |
Mode for Master and Slave intake or extraction: the Slave sets the direction of rotation via DIP-switches opposite to the predetermined configuration.
| Extraction / Intake, humidity level 1 | Umurni |
| Extraction Master & Slave level 0 | \x02\x30\x31\x33\x34\x30\x30\x33\x35\x03 |
| Extraction Master & Slave level 1 | \x02\x30\x31\x33\x35\x30\x30\x33\x34\x03 |
| Extraction Master & Slave level 2 | \x02\x30\x31\x33\x36\x30\x30\x33\x37\x03 |
| Extraction Master & Slave level 3 | \x02\x30\x31\x33\x37\x30\x30\x33\x36\x03 |
| Intake Master & Slave level 0 | \x02\x30\x31\x33\x38\x30\x30\x33\x39\x03 |
| Intake Master & Slave level 1 | \x02\x30\x31\x33\x39\x30\x30\x33\x38\x03 |
| Intake Master & Slave level 2 | \x02\x30\x31\x33\x41\x30\x30\x33\x42\x03 |
| Intake Master & Slave level 3 | \x02\x30\x31\x33\x42\x30\x30\x33\x41\x03 |
Yanayin atomatik: the Slave sets the direction of rotation via DIP-switches according to the predetermined configuration.
| Automatic Mode, humidity level 2 | Umurni |
| Extraction Master night mode | \x02\x30\x31\x36\x34\x30\x30\x36\x35\x03 |
| Extraction Master day mode | \x02\x30\x31\x36\x36\x30\x30\x36\x37\x03 |
| Intake Master night mode | \x02\x30\x31\x36\x38\x30\x30\x36\x39\x03 |
| Intake Master day mode | \x02\x30\x31\x36\x41\x30\x30\x36\x42\x03 |
| Automatic Mode, humidity level 3 | Umurni |
| Extraction Master night mode | \x02\x30\x31\x41\x34\x30\x30\x41\x35\x03 |
| Extraction Master day mode | \x02\x30\x31\x41\x36\x30\x30\x41\x37\x03 |
| Intake Master night mode | \x02\x30\x31\x41\x38\x30\x30\x41\x39\x03 |
| Intake Master day mode | \x02\x30\x31\x41\x41\x30\x30\x41\x42\x03 |
Bayanan shirye-shirye
The unit should change the direction of rotation at a specific interval, to obtain the best possible heat recovery: 60 seconds intake followed by 10 seconds pause.
Then 60 seconds extraction followed by another 10 seconds pause. This cycle guarantees an efficient air exchange along with heat recovery. At dusk the integrated twilight sensor allows to switch automatically to the night mode.
Shirya matsala
If no communication is set up, the switch of channel A and channel B (A/B lines on the RS485) can help. Moreover, check that the terminating resistor is correctly set in place, especially on the last station in the bus, in order to avoid signal reflections and communication interference
Takardu / Albarkatu
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Ambientika RS485 Shirye-shiryen Sud iska [pdf] Jagoran Shigarwa RS485-ambientika-June-25, RS485 Shirye-shirye Sud iska, RS485, Shirye-shiryen Sud iska, Sud iska |