Network scheduler (Option 2) - Application Guide - CWG.BOX-EU - CWG.BOX-NA

Adapting existing BACnet network schedulers

The example below is a Connect Box (on-premise) interacting with a Siemens Desigo PXC4 BACnet controller providing pre-engineered binary, analog, and multistate variants of BACnet scheduler object type 17: Schedule to the network.

1. Connect Box must scan the network in the Configuration tab.
2. • Please refer to the technical training videos for detailed instructions on scanning the BACnet network.
     

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2. Once integrated, the objects are available in the Live data tab for viewing and re-configuration. The scheduler objects used in this example are listed in the screenshot below.
   

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3. The Set a value button changes the configuration of individual schedulers.
4. • Note: Although you can change the name, description and BACnet object parameter via the Edit the configuration button, we recommend against this. The schedulers are preset and setup on the controller and should be changes. Relevant details are described in the step 9. below.
4. Different properties can be accessed and resented in a way similar to a BACnet browser (see example below).
   

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5. The Schedule tab allows for displaying and changing object schedules. Connect Box shows binary or multistate schedules as follows:
   

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6. A graphical representation (e.g. on an HMI) of this configuration results in the following overview (similar to the graphical view for the on-board scheduler).
7. • Note: A graphical view for external schedules on the BACnet network is not included in the Connect Box itself. We recommend using products such as Desigo Control Point or Desigo Optic for this purpose noting the restrictions on the on-board scheduler outlined in this document.
     

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   • The Connect Box allows access, but can also change key parameters in the scheduler objects; e.g. influencing additional connected devices and one or multiple object properties that are accessible by the Connect Box via the network.
     
7. The example below depicts how to add and influence the Comfort-State Temperature property of another BACnet object on the network via the Target tab. All added properties are set to the defined value for the individual schedules defined for the specific object (see step 5. above).
   
8. NOTICE

   

   Important:

   The drop-down menu in the Target tab lists available properties on the network and can be filtered by device. The user must assess whether a data point is compatible with the configured schedule and this requires advanced knowledge of (BACnet) Building Automation and Control Systems.
   When writing to LoRaWAN devices, please note the restrictions outlined in Details and system restrictions.

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8. The General Settings tab changes general parameters. This is used for setting the effective period and data type applied by Connect Box to additional target properties (e.g. to effectively apply a schedule during the 2024/2025 heating period), or the default value applied outside of this period.
   

Want to learn more?

Details on schedulers that focus on BACnet are available in the Desigo Building Automation and Control documentation.

Schedulers for other protocols (LPB, KNX)

Devices supporting schedulers can take advantage of Connect Box adapting scheduler information to a connected device. We recommend only using this functionality with already decoded devices.

The example below outlines the steps for a popular Siemens RVL470 (LPB) heating controller.

1. The RVL470 and various similar models can be integrated using the Connect Box device library.
2. Once integrated, the temperature setpoints for individual operating modes and the schedules for individual weekdays can be set via the Live data tab. Each weekday can operate on an individual scheduler.
   

The general configuration logic follows similar steps as outlined for the BACnet scheduler.

The schedulers in the Synco (KNX) device, e.g. RDG260KN shown below, can also be adapted and set to the desired operating mode for each day and time period.

Details including step-by-step guidance on how a Siemens Synco Controller connects to the Connect Box are accessible here on the Wattsense Support Portal.

Schedulers for other protocols (Modbus)

This is a placeholder for information intended for later versions of this document. In the meantime, please contact Siemens customer support for instructions and help.