Files
scadalink-design/infra/opcua/nodes.json
Joseph Doherty 7740a3bcf9 feat: add JoeAppEngine OPC UA nodes, fix DCL auto-reconnect and quality push
- Add JoeAppEngine folder to OPC UA nodes.json (BTCS, AlarmCntsBySeverity, Scheduler/ScanTime)
- Fix DataConnectionActor: capture Self in PreStart for use from non-actor threads,
  preventing Self.Tell failure in Disconnected event handler
- Implement InstanceActor.HandleConnectionQualityChanged to mark attributes Bad on disconnect
- Fix LmxFakeProxy TagMapper to serialize arrays as JSON instead of "System.Int32[]"
- Allow DataType and DataSourceReference updates in TemplateService.UpdateAttributeAsync
- Update test_infra_opcua.md with JoeAppEngine documentation
2026-03-19 13:27:54 -04:00

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JSON

{
"Folder": "ScadaLink",
"NodeList": [],
"FolderList": [
{
"Folder": "Motor",
"NodeList": [
{
"NodeId": "Motor.Speed",
"Name": "Speed",
"DataType": "Double",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Motor speed in RPM"
},
{
"NodeId": "Motor.Temperature",
"Name": "Temperature",
"DataType": "Double",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Motor bearing temperature in Celsius"
},
{
"NodeId": "Motor.Current",
"Name": "Current",
"DataType": "Double",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Motor current draw in Amps"
},
{
"NodeId": "Motor.Running",
"Name": "Running",
"DataType": "Boolean",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Motor running status"
},
{
"NodeId": "Motor.FaultCode",
"Name": "FaultCode",
"DataType": "UInt32",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Active fault code (0 = no fault)"
}
]
},
{
"Folder": "Pump",
"NodeList": [
{
"NodeId": "Pump.FlowRate",
"Name": "FlowRate",
"DataType": "Double",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Flow rate in liters per minute"
},
{
"NodeId": "Pump.Pressure",
"Name": "Pressure",
"DataType": "Double",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Discharge pressure in bar"
},
{
"NodeId": "Pump.Running",
"Name": "Running",
"DataType": "Boolean",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Pump running status"
}
]
},
{
"Folder": "Tank",
"NodeList": [
{
"NodeId": "Tank.Level",
"Name": "Level",
"DataType": "Double",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Tank level in percent"
},
{
"NodeId": "Tank.Temperature",
"Name": "Temperature",
"DataType": "Double",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Tank contents temperature in Celsius"
},
{
"NodeId": "Tank.HighLevel",
"Name": "HighLevel",
"DataType": "Boolean",
"ValueRank": -1,
"AccessLevel": "CurrentRead",
"Description": "High level alarm switch"
},
{
"NodeId": "Tank.LowLevel",
"Name": "LowLevel",
"DataType": "Boolean",
"ValueRank": -1,
"AccessLevel": "CurrentRead",
"Description": "Low level alarm switch"
}
]
},
{
"Folder": "Valve",
"NodeList": [
{
"NodeId": "Valve.Position",
"Name": "Position",
"DataType": "Double",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Valve position in percent open"
},
{
"NodeId": "Valve.Command",
"Name": "Command",
"DataType": "UInt32",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Valve command (0=Close, 1=Open, 2=Stop)"
}
]
},
{
"Folder": "JoeAppEngine",
"NodeList": [
{
"NodeId": "JoeAppEngine.BTCS",
"Name": "BTCS",
"DataType": "String",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "BTCS string value"
},
{
"NodeId": "JoeAppEngine.AlarmCntsBySeverity",
"Name": "AlarmCntsBySeverity",
"DataType": "Int32",
"ValueRank": 1,
"ArrayDimensions": [13],
"AccessLevel": "CurrentReadOrWrite",
"Description": "13-element alarm counts by severity level"
}
],
"FolderList": [
{
"Folder": "Scheduler",
"NodeList": [
{
"NodeId": "JoeAppEngine.Scheduler.ScanTime",
"Name": "ScanTime",
"DataType": "DateTime",
"ValueRank": -1,
"AccessLevel": "CurrentReadOrWrite",
"Description": "Current scan time (updates every second)"
}
]
}
]
}
]
}