{
 "manufacturer": "EBTRON",
 "manufacturer_slug": "ebtron",
 "model": "Silver Series STN104 Airflow / Temperature Transmitter (RS-485 network version)",
 "model_slug": "silver-series-stn104",
 "aliases": [
  "STN104",
  "STx104",
  "Silver Series STx104",
  "TM_STx104"
 ],
 "equipment_type": "Thermal dispersion airflow measuring station",
 "applies_to": "EBTRON Silver Series STN104 network transmitters (RS-485: BACnet MS/TP, Modbus RTU or JCI N2) for airflow, differential pressure and temperature.",
 "summary": "The STN104 is the RS-485 network version of the EBTRON Silver Series STx104 transmitter. On BACnet MS/TP it reports airflow, differential pressure and temperature as analog inputs, with writable analog values for the duct free area and the baud rate.",
 "bacnet_transport": [
  "BACnet MS/TP"
 ],
 "firmware": null,
 "default_device_instance": null,
 "access_inferred": false,
 "notes": [
  "Objects and writable properties come from Tables 5 and 6 of the manual. Units of the analog inputs are writable (Units property).",
  "Table 5 also lists a binary value \"Auto Baud Rate Detection\" but no instance is printed for it, so it is left out."
 ],
 "source": {
  "title": "Silver Series STx104 Transmitter - Installation, Operation and Maintenance Technical Manual",
  "doc_number": "TM_STx104_R3A",
  "revision_date": null,
  "url": "https://ebtron.com/wp-content/uploads/TM_STx104.pdf"
 },
 "integration": {
  "summary": "Read airflow (AI 0), temperature (AI 2) and differential pressure (AI 1). Write the duct free area to AV 0 so airflow in CFM or LPS is right.",
  "minimum_points": [
   {
    "ref": "AI 0",
    "why": "Airflow (FPM, CFM, MPS or LPS)",
    "name": "Airflow"
   },
   {
    "ref": "AI 2",
    "why": "Air temperature",
    "name": "Temperature"
   },
   {
    "ref": "AI 1",
    "why": "Differential pressure (in. H2O or Pa)",
    "name": "Pressure"
   }
  ],
  "enable": null,
  "heartbeat": null,
  "remote_sensors": null,
  "setup": [
   "Ships with network address 1. For BACnet MS/TP the ADDRESS DIP switches set the MAC (1-127); switch 1 at power-up controls whether the device instance is set to the same value and the BACnet objects reset to defaults.",
   "MS/TP ships at 76,800 baud; write the Baud Rate object (AV 1) for 9600, 19,200 or 38,400."
  ],
  "gotchas": []
 },
 "points": [
  {
   "type": "AI",
   "instance": 0,
   "name": "Airflow",
   "description": "Units FPM, CFM, MPS or LPS",
   "units": "fpm",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 1,
   "name": "Pressure",
   "description": "Differential pressure; units in. H2O or Pa",
   "units": "inH2O",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 2,
   "name": "Temperature",
   "description": "°C or °F",
   "units": "°F",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 0,
   "name": "Free Area",
   "description": "Duct free area, sq.ft.",
   "units": "ft²",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 1,
   "name": "Baud Rate",
   "description": "MS/TP baud: 9.6, 19.2, 38.4 or 76.8 kbps",
   "units": "",
   "access": "W",
   "states": ""
  }
 ],
 "page": "https://easybacnet.com/bacnet-points-lists/ebtron/silver-series-stn104",
 "note": "Provided as-is. Point availability varies by firmware and options; verify against the live device.",
 "disclaimer": "DISCLAIMER: reference only, provided AS IS with no warranty. May contain errors or be out of date. You must verify every point against the manufacturer's current documentation and the live device before use. easybacnet.com accepts no liability for its use and is not affiliated with the manufacturer. Terms: https://easybacnet.com/terms#content"
}