SCADA · Example Payload

Scada Tag Reading Example

Example SCADA tag data payload representing a pressure sensor reading from an OPC-UA server

Critical InfrastructureICSIndustrial AutomationIndustrial IoTOT SecuritySCADA

Scada Tag Reading Example is an example object payload from SCADA, with 4 top-level fields. It illustrates the shape of data this provider's APIs accept or return.

Top-level fields

descriptionscenariorequestresponse

Example Payload

{
  "description": "Example SCADA tag data payload representing a pressure sensor reading from an OPC-UA server",
  "scenario": "Reading real-time tag data from an Ignition SCADA system via its REST API",
  "request": {
    "method": "GET",
    "url": "https://{ignition-host}/system/webdev/api/tags/read",
    "headers": {
      "Authorization": "Bearer {{IGNITION_API_TOKEN}}",
      "Accept": "application/json"
    },
    "queryParameters": {
      "tagPath": "Plant/Area2/Reactor/PV_101"
    }
  },
  "response": {
    "status": 200,
    "body": {
      "tagId": "PLANT1.AREA2.PV_101",
      "tagName": "Reactor Inlet Pressure",
      "tagPath": "Plant/Area2/Reactor/PV_101",
      "value": 142.7,
      "dataType": "Float",
      "timestamp": "2026-05-02T14:30:00.000Z",
      "quality": "Good",
      "engineeringUnits": "PSI",
      "description": "Differential pressure transmitter at reactor inlet header - PV-101",
      "alarmLimits": {
        "highHigh": 180.0,
        "high": 165.0,
        "low": 50.0,
        "lowLow": 30.0
      },
      "deviceSource": {
        "deviceId": "PLC_REACTOR_001",
        "deviceType": "PLC",
        "protocol": "OPC-UA"
      },
      "processArea": "Reactor Section"
    }
  }
}

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