{
 "id": "6.08a",
 "slug": "building-management-controls-environmental-sensors-plcs",
 "url": "/parts/facility-cooling-and-hvac/building-management-controls-environmental-sensors-plcs",
 "name": "PLCs",
 "qualifiers": null,
 "layer": {
  "id": 6,
  "name": "Facility cooling & HVAC"
 },
 "parent_id": "6.08",
 "children": [],
 "summary": "Programmable logic controllers that execute the low-level control loops — chiller sequencing, valve and damper modulation — the building management system directs.",
 "description_md": null,
 "ai_delta": null,
 "bottleneck_status": null,
 "scale_tiers": [],
 "density_modes": [],
 "scale_notes": null,
 "flow": [
  "heat"
 ],
 "companies": [
  {
   "company_id": "rockwell",
   "name": "Rockwell",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "ROK",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "schneider-electric",
   "name": "Schneider Electric",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "SU.PA",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "siemens",
   "name": "Siemens",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "SIE.DE",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "beckhoff",
   "name": "Beckhoff",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "phoenix-contact",
   "name": "Phoenix Contact",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  }
 ]
}