A BACnet Server Example written in TypeScript using the CAS BACnet Stack. This is a basic server example and does not include all of the functionality of the CAS BACnet Stack. See BACnetServerExampleCPP for a full featured example.

Use the Chipkin BACnet Explorer to discover this device.

This example project uses version 5.1.0.2541-21 of the CAS BACnet Stack

NPM login to Chipkin Gitlab instance for the CAS BACnet Stack.

echo @chipkin:registry=https://gitlab.com/api/v4/packages/npm/ >> .npmrc
npm i typescript --save-dev
npm install
npm run start

When discover the BACnet device should have the following object types

• Device: 389055 (CAS BACnet Stack TypeScript Example)
  • Analog Input: 0
    • Object Name: "AnalogInput Bronze"
    • Present Value: Updates every 30 seconds by 1.1
  • Analog Value: 2
    • Object Name: "AnalogValue Diamond"
    • Present Value: Writable
  • Binary Input: 3
    • Object Name: "BinaryInput Emerald"
  • Binary Value: 5
    • Object Name: "BinaryValue Gold"
    • Present Value: Writable
  • MultiState Input: 13
    • Object Name: "MultiStateInput Hot Pink"
  • MultiState Value: 19
    • Object Name: "MultiStateValue Kiwi"
    • Present Value: Writable
  • Network Port: 56
    • Object Name: "NetworkPort Vermilion"

The following services are supported in this example. Other serviecs are avalaible in the CAS BACnet Stack

• Read Property
• Read Property Multiple
• Write Property
• Write Property Multiple
• Subscribe Cov
• Device Communication Control
• Subscribe Cov Property
• Subscribe Cov Property Multiple

FYI: BACnet Server Example in TypeScript Version: 1.0.0
FYI: https://github.com/chipkin/BACnetServerExampleTypeScript
FYI: CAS BACnet Stack Version: 5.1.0.2541-21
FYI: Setting up callback functions...
FYI: Setting up bacnet device...
FYI: Setting up bacnet database with values...
FYI: Connecting UDP to port: 47808, networkPort.ip: 192.168.2.59, networkPort.broadcastAddress: 192.168.2.255
FYI: Starting main program loop...
FYI: UDP.Server listening 192.168.2.59:47808
Received message from: 192.168.2.31:47808, messageLength: 17
GetPropertyEnumerated deviceInstance: 389055, objectType: 3, objectInstance: 3, propertyIdentifier: 85, useArrayIndex: false, propertyArrayIndex: 0
Sending message to: 192.168.2.31:47808, messageLength: 20
Received message from: 192.168.2.31:47808, messageLength: 19

The CAS BACnet Stack requests a value for all requested properties using a CallBackGetProperty function. If that callback function returns a false. A default will be used. It is normal to have The value is not defined in the database warnings as the default will be used for these properties.

Example:

GetPropertyUnsignedInteger deviceInstance: 389055, objectType: 8, objectInstance: 389055, propertyIdentifier: 62, useArrayIndex: false, propertyArrayIndex: 0
The value is not defined in the database.