Paxton Net2 un KNX: integrācija ar OEM SDK un durvju notikumu automatizācija

C# Net2 SDK notikumu abonēšana (vienkāršoti)

// Install: Paxton.Net2.OemClientLibrary (COM reference)
// Install: KNXLib (NuGet) — knxdotnet KNX IP Interface

var net2 = new Paxton.Net2.OemClient();
net2.Connect("localhost", Net2Port);
net2.OnEventReceived += OnNet2Event;

void OnNet2Event(Net2Event evt) {
  switch (evt.EventType) {
    case EventType.AccessGranted:
      var mapping = config.GetKnxMapping(evt.DoorId);
      if (mapping != null) {
        knx.Action(mapping.GroupAddress, true); // DPT 1.001
        knx.Action(mapping.HvacGroupAddress, true); // HVAC occupied
      }
      break;
    case EventType.AccessDenied:
      // optional: write to security alert GA
      break;
    case EventType.AlarmActivated:
      knx.Action("8/0/1", true); // alarm relay
      break;
  }
}

// config.json mapping example:
// { "doorId": 101, "ga": "3/0/1", "hvacGa": "4/0/1" }
// { "doorId": 102, "ga": "3/1/1", "hvacGa": "4/1/1" }

RS232 seriālo notikumu formāts un parsēšana Node-RED

Net2 ACU RS232 output (9600 baud, 8N1):
  ASCII string per event: "DOOR:101,EVENT:ACCESS_GRANTED,USER:Smith
"

Node-RED serial in node:
  Port: /dev/ttyUSB0 (or COM3 on Windows)
  Baud: 9600, 8N1
  Split: on newline character

Function node — parse and route:
  const parts = msg.payload.split(",");
  const doorId = parts[0].split(":")[1];
  const event = parts[1].split(":")[1];
  if (event === "ACCESS_GRANTED" && doorId === "101") {
    msg.knxGA = "3/0/1";
    msg.knxValue = true;
  }
  return msg;

KNX write node → IP Interface → KNX bus

Limitation: RS232 event format is not officially documented
  by Paxton — verify exact format with your ACU firmware version
  before building production automation on this approach

Birojs Apvienotajā Karalistē — no piekļuves notikumiem līdz ēkas vadībai caur KNX

Morning arrival (first AccessGranted at main entrance):
  → KNX GA 3/0/0 = true (lobby lights ON)
  → KNX GA 4/0/0 = true (HVAC building occupied mode)
  → KNX GA 5/0/0 = false (disable night setback)

End of day — last user leaves after 18:00:
  C# service tracks occupancy count per door zone
  When count reaches zero after 18:00:
  → KNX GA 4/0/0 = false (HVAC setback mode)
  → KNX GA 3/0/0 = false (lights off — after 60s delay)
  → KNX GA 5/0/0 = true (night setback active)

Fire alarm integration (Net2 AlarmActivated event):
  → KNX GA 8/0/1 = true (fire alarm relay to KNX PA system)
  → KNX GA 3/0/1 = 255 (emergency lighting full brightness)
  Net2 also releases all doors to fail-safe unlocked state
  KNX door strike outputs (if any) also release via KNX GA

Beckhoff TwinCAT OSDP + KNX pieslēgums

Hardware:
  Beckhoff CX9020 controller
  EL6700 RS485 EtherCAT terminal → OSDP v2 reader (RS485 bus)
  EL6900 KNX EtherCAT terminal → KNX TP bus

TwinCAT configuration:
  Install OSDP library (Beckhoff TE6730 or third-party)
  Configure EL6700 as OSDP master, reader as slave ID 1
  Map card number data → TwinCAT PLC variable CardNumber

TwinCAT PLC logic (Structured Text):
  IF CardNumber <> 0 AND CardNumber = ValidCard1 THEN
    KNX_WriteGA(GA := '3/0/1', Value := TRUE); // lobby lights
    KNX_WriteGA(GA := '4/0/1', Value := TRUE); // HVAC occupied
  END_IF

Advantage: no Windows PC server required
  DIN-rail controller fits inside LV panel
  KNX EL6900 certified for KNX TP communication
  Single controller, single point of maintenance

No viesnīcas istabas kartes līdz KNX sagaidīšanas ainai

Card inserted into room holder (Net2 AccessGranted):
  → KNX GA 6/R/0 = true (Gira card switch 24V trigger activated)
  → KNX Scene "Room Welcome" fires:
      GA 3/R/0 = 80 (room lights 80% DPT 5.001)
      GA 4/R/0 = true (HVAC room comfort mode)
      GA 9/R/0 = 21 (room thermostat setpoint 21°C)

Card removed from holder (Net2 AccessGranted — out):
  → KNX GA 6/R/0 = false (Gira card switch deactivated)
  → KNX 60-second delay timer starts
  → After 60s:
      GA 3/R/0 = 0 (room lights off)
      GA 4/R/0 = false (HVAC setback mode)
      GA 9/R/0 = 18 (setback setpoint 18°C)

Net2 room door reader also logs entry/exit times
  — useful for housekeeping scheduling and BREEAM evidence

Note: R = room number (1-100) in the GA scheme
  Each room has its own GA sub-group for independent control

Noslogojuma un enerģijas datu korelācijas process

1. Net2 scheduled report: export occupancy_floor_hourly.csv
   Columns: date, hour, floor, user_count
   Automation: Net2 Task Scheduler exports nightly at 01:00

2. KNX energy meter data (SOCOMEC Countis E14):
   Modbus TCP → LOYTEC LROC gateway → KNX GA 6/E/1 (kWh)
   Logged to building energy management system (BEMS) database
   or InfluxDB via Node-RED

3. Python script merges datasets:
   energy_per_hour = InfluxDB query (kWh by floor, by hour)
   occupancy_per_hour = CSV import (users by floor, by hour)
   energy_per_person = energy_per_hour / occupancy_per_hour
   Output: energy_intensity.csv for BREEAM assessor

4. BREEAM Hea 04 evidence:
   Demonstrates energy reduction during low occupancy periods
   Confirms KNX setback automation is effective
   Shows energy-per-person improvement over 12-month period