BACnet Sensor Bridge
How to perform the web configuration of your BACnet Sensor Bridge
Julien Stamatakis avatar
Written by Julien Stamatakis
Updated over a week ago

Make sure you have properly installed your BACnet sensor bridge before continuing with the web configuration.


Sign in to to configure your sensor bridge. You can configure various communication settings including Parity, Bridge Address, and Baud Rate, BACnet MS/TP specific settings, as well as desired device operations, under the module configuration tab on the installations page. The default settings are as follows:

• Parity: No Parity with 1 Stop Bit
• Baud Rate: Auto-detect
• Bridge Device Address: 14

• Max Master: 127
• Device Instance: automatically & uniquely generated
• Reply Timeout: 255
• Usage Timeout: 20

You can set up conversion functions and conversion factors for each channel under the module configuration tab. The data is directly available via data forwards or the Senseware dashboard. You can also remotely reset the sensor bridge in the module information section of the system status by clicking on the 'Reset' button and selecting either 'Soft Reset' or 'Hard Reset.' A soft reset will restart the sensor and a hard reset will erase the saved configuration.

Auto Discovery:

The Auto-Discovery feature of the BACnet MS/TP sensor bridge allows you to automatically discover all of the device on a given BACnet MS/TP network including their Objects and all of the properties and values contained within those Objects. This greatly simplifies the process of selecting which data points you would like to trend. To begin the Auto-Discovery process, simply click the 'Start Auto-Discovery' button. A progress bar will indicate how far along the Discovery process is. Depending on the number of devices present, this process may take several minutes.

Read Operations:

After visiting the module configuration tab scroll down to the section label BACnet. Click the 'Read From BACnet Device' button to begin configuring your BACnet read operations.

Select a relevant Device, Object, and Property to begin trending data points. Once Auto-Discovery has completed successfully the Device Address field with automatically populate with all the Devices discovered on the network. After selecting a Device, the 'Object' field will populate with all of the BACnet Objects found in the Discovery process. You can then select the property that would like to read. Only Properties present for the specific Object will be shown. The Present Value item in the dropdown is selected by default when available. Additionally, the 'Unit' field will automatically populate with the appropriate value if one was found during Discovery.

Alternatively, select the Manual Selection tab to manually enter the Device Address, Object Identifier, and Property fields.

Click Read another Register from this Device to continue reading registers from the same BACnet device, or click Read From BACnet Device to begin adding read operations for a new BACnet device.

Once you have configured all of your read operations, click the Save button at the bottom of the page.

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