AIRZONE KNX TP-1 Modbus Aidoo WiFi Controller Direct Relaxation Instruction Manual
- June 4, 2024
- AIRZONE
Table of Contents
AIRZONE KNX TP-1 Modbus Aidoo WiFi Controller Direct Relaxation
PRECAUTIONS AND ENVIRONMENTAL POLICY
PRECAUTIONS
- For your security, and to protect the devices, follow these instructions:
- Do not manipulate the system with wet or damp hands.
- Disconnect the power supply before making any connections.
- Take care not to cause a short circuit in any of the system connections.
ENVIRONMENTAL POLICY
- Do not dispose of this equipment in the household waste.
- Electrical and electronic equipment contain substances that may damage the environment if they are not handled appropriately.
- The symbol of a crossed-out waste bin indicates that electrical equipment should be collected separately from other urban waste.
- For correct environmental management, it must be taken to the collection centers provided for this purpose, at the end of its useful life.
- The equipment components may be recycled. Act in accordance with current regulations on environmental protection.
- If you replace it with other equipment, you must return it to the distributor or take it to a specialized collection center.
- Those breaking the law or by-laws will be subject to such fines and measures as are laid down in environmental protection legislation.
RS-485 COMMUNICATION PORT
RS-485, also known as EIA-485, is a communication standard in bus
CONNECTION
For proper operation of the system, verify that only the communication cables (greenblue) are connected to their matching domotic buses. Attach the wires with the terminal screws following the color code.
MODBUS PROTOCOL
MODBUS Protocol is a communication structure used to establish master-slave
/client-server communication between intelligent devices connected on
different types of buses or networks. Each device intended to communicate
using Modbus is given a unique address. Master devices send a command in a
frame which contains the address of the device or the end-devices (slaves).
All devices are sent the frame, but only the recipient interprets and executes
the command. Modbus commands contain checksum information, to allow the
recipient to detect transmission errors.
Note: It possible to send information to multiple devices simultaneously using
a frame called “Broadcast”. Each message includes redundant information that
ensures it is properly received. If, after a certain time, the master does not
receive a confirmation it interprets that an error has occurred and terminates
communication. The mode of transmission used is MODBUS-RTU. Each byte of data
is represented by two 4-bit characters in hexadecimal format. The format of
the frame is the following
CONFIGURATION OF THE SLAVE ADDRESS FOR THE AIDOO WI-FI/PRO CONTROLLER DEVICE
-
The Aidoo is a Modbus slave device, so it is necessary to indicate its address. To do this, associate your Aidoo via the “Airzone Aidoo” app (available for iOS and Android) by following these steps:
On the drop-down menu press the option Add device. -
Select the unit from the list of available units to get info.
Note: If your unit does not appear, confirm the Bluetooth function of your iOS or Android is activated. Verify that the Aidoo is working properly.
-
Enter the pin code located in the Aidoo if required and tap Send button.
-
You can start test actions to identify and check the operation of the unit (heating, cooling, fan and turning off).
-
Select Webserver information, configure the device’s slave address in the Modbus port parameter and press the validation icon.
Close the Webserver information window. -
It will not be necessary to continue with the Add device process to integrate it via Modbus.
You can find the “Airzone Aidoo” app here:
https://www.airzonecontrol.com/ib/es/solucionesde_control/aidoo/W-EI MODBUS FUNCTION CODES
Modbus basic commands allow the control of a device to change the value of its
registers (memory slot) or to request the content of these registers,
depending on the codes:
MODBUS COMMANDS
The format of the commands for the read/write operations is as follows (8
byte):
- Slave address Defines the system to access. A Modbus command contains the Modbus address of the device it is intended for (1 to 247). 0 address is reserved for a transmission to all devices (broadcast).
- Operation code. Specifies the operation to be performed.
- Register address. Specifies the operation to be accessed. In commands to be performed in multiple registers, defines the boot log, from which you want to operate consecutively.
- Data. Formed by 2 bytes (simple operations) or a set of 2 bytes (multiple operations) that contain the information in the command.
- CRC. Two bytes are added to the end of the stream in order to detect transmission o reception errors. This action is done using the Cyclic Redundant Code.
- Generator polynomial: CRC-16 = x16 + x15 + x2 + 1.
WRITE COMMANDS
Write a single holding register Write multiple registers
The response, as long as it is error-free, will be:
READ COMMAND
Question Response
REGISTERS
SYSTEM REGISTERS
