MBus - Instance & item setup
How to setup a MBus slave device and fetching data
The MBus Connector requires a level converter to convert the MBus data bus to RS232. Most level converters for MBus to RS232 are supported. Contact the SIA Connect team for further details
Automatic scanning of MBus slave devices
The MBus Connector will automatically scan the network and detect any MBus slave devices and their respective data items
The MBus (Meter-Bus) protocol is a European standard designed primarily for the reading of heat, gas, water and electricity meters. The protocol supports both wired and wireless implementations, making it versatile for various metering infrastructures. This guide will describe how the Wired MBus Connector is used to acquire data from these energy meters.
Instance parameters
The instance contains the following custom parameters
| Parameter | Description |
|---|---|
| Name (instance default) | The automatic generated name consists of the vendor code + address of the MBus slave device and the type of meter |
| Address (instance default) | Secondary or Primary MBus address of the slave device |
| Unique ID (instance default) | Serial number of the MBus slave device |
| Device interface | The serial port to be used for communicating with the device or where the device has been automatically scanned at. |
| Timeout | TImeout given in milliseconds to wait for a response from the device before considering it unavailable. |
| Baudrate |
Baudrate to be used for communication with the device. Default: 2400 |
Item parameters
The item parameters that is needed to read the tags in the PLC memory:
| Parameter | Description |
|---|---|
| Name (instance default) | Name of the data point consists of the unit and the entity returned by the MBus slave device |
| Unit (instance default) | Unit of the measuring returned by the device. |
Video instruction
Below shows a video on how to get started with MBus:
Approved level converts
Most level converts between MBus & RS232 will per default work.
If you have an unlisted MBus converter please contact us with the vendor and model
Here is a list of already validated and approved level converts:
| Vendor | Model | Supported MBus slaves |
|---|---|---|
| Techbase | mBus | 10 - 600 (depending on model) |
| Relay | PW | 20 - 250 (depending on model) |