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BACnet Server TrendLog Example C#

A simple BACnet Server example in C# to demonstrate functionality to Import and Export data from Trend Log Objects using the CAS BACnet Stack.

Releases

Build versions of this example can be downloaded from the Releases page.

Installation

Download the latest release zip file on the Releases page. Copy CASBACnetStack_x64_Release.dll from the CAS BACnet Stack into the release folder. Please contact Chipkin Automation Systems for access to the CAS BACnet Stack. Launch client by using the following command:

dotnet BACnetServerTrendLogExampleCSharp.dll

Requires .NET Core 3.0+

Usage

Trendlog object is tied to Analog Input 1 and is updated every 30 seconds. Trendlog Multiple is tied to Analog Input 1, Analog Input 2, Binary Input 3, and Multi-State Input 4.

Pre-configured with the following example BACnet device and objects:

  • Device: 389000 (Example Trending Device)
    • analog_input: 1 (AI - Auto Increment)
    • analog_input: 2 (AI - Manual Increment)
    • binary_input: 3 (BI - Binary Input)
    • multi-state_input: 4 (MSI - Multi-State Input)
    • trend_log: 10 (TL - Trend Log (AI1))
    • trend_log_multiple: 20 (TLM - Trend Log Multiple (AI1, AI2, BI3, MSI4))

The following keyboard commands can be issued in the server window:

  • H: Display help menu
  • F1: Display Version Info
  • Up Arrow: Increment Analog Input 2 Present Value
  • Down Arrow: Decrement Analog Input 2 Present Value
  • B: Backup TrendLog to File
  • S: Backup TrendLogMultiple to file
  • Q: Quit the program

Build

A Visual Studio 2019 project is included with this project. This project also auto built using Gitlab CI on every commit.

  1. Copy CASBACnetStack_x64_Debug.dll, CASBACnetStack_x64_Debug.lib, CASBACnetStack_x64_Release.dll, and CASBACnetStack_x64_Release.lib from the CAS BACnet Stack project into the /bin/netcoreapp3.1/ folder.
  2. Use Visual Studio 2019 to build the project. The solution can be found in the /build/BACnetServerTrendLogExampleCSharp/ folder.

Example Output

Starting Windows BACnetServer TrendLog Example CSharp version: 0.0.1.0
https://github.com/chipkin/BACnetServerTrendLogExampleCSharp
FYI: BACnet Stack version: 3.16.0.1107
FYI: CAS BACnet Stack Setup, successfully
FYI: Loading initial data points to Trend Log and Trend Log Multiple objects
FYI: Initial data load complete
FYI: Starting main loop
FYI: Request for CallbackGetPropertyReal. objectType=0, objectInstance=1, propertyIdentifier=85, propertyArrayIndex=0
FYI: AnalogInput[1].value got [0]
FYI: Request for CallbackGetPropertyReal. objectType=0, objectInstance=1, propertyIdentifier=85, propertyArrayIndex=0
FYI: AnalogInput[1].value got [0]
FYI: Request for CallbackGetPropertyReal. objectType=0, objectInstance=2, propertyIdentifier=85, propertyArrayIndex=0
FYI: AnalogInput[2].value got [0]
FYI: Request for CallbackGetEnumerated. objectType=3, objectInstance=3, propertyIdentifier=85
FYI: BinaryInput[3].value got [False]
FYI: Request for CallbackGetUnsignedInteger. objectType=13, objectInstance=4, propertyIdentifier=85, propertyArrayIndex=0
        F1:      Version Info
        Up:      Increase ManualIncrement Analog Input Present Value by 0.01f
        Down:    Decrease ManualIncrement Analog Input Present Value by 0.01f
        B:       Backup TrendLog to file
        S:       Backup TrendLogMultiple to file
FYI: Recving 19 bytes from 192.168.1.18:58533
FYI: Request for CallbackGetUnsignedInteger. objectType=8, objectInstance=389000, propertyIdentifier=11, propertyArrayIndex=0