Reference

OpcAnalogItemNodeInfo Members

Type

OpcAnalogItemNodeInfo

Namespace

Opc.UaFx.Client

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Also in

Opc.UaFx.Client

Inherits members from OpcVariableNodeInfo, OpcInstanceNodeInfo, OpcNodeInfo.

Properties

EngineeringUnit

Gets the engineering unit information which specifies the unit of the value attribute of the analog item node.

public OpcEngineeringUnitInfo EngineeringUnit { get; }

Public ReadOnly Property EngineeringUnit As OpcEngineeringUnitInfo

Property value

OpcEngineeringUnitInfo

An instance of the OpcEngineeringUnitInfo class which provides the information of the unit used to scale the value attribute of the analog item node.

EngineeringUnitRange

Gets the range information which applies to normal operation.

public OpcValueRange EngineeringUnitRange { get; }

Public ReadOnly Property EngineeringUnitRange As OpcValueRange

Property value

OpcValueRange

An instance of the OpcValueRange class which provides the range information of the value attribute in normal operation. This information is intended for such use as automatically scaling a bar graph display.

Remarks

Sensor or instrument failure or deactivation can result in a returned item value which is actually outside of this range. Clients must be prepared to deal with this possibility. Similarly a Client may attempt to write a value that is outside of this range back to the Server. The exact behaviour (accept, reject, clamp, etc.) in this case is Server-dependent. However, in general Server shall be prepared to handle this.

InstrumentRange

Gets the range information which applies to the instrumental values returned by the instrument.

public OpcValueRange InstrumentRange { get; }

Public ReadOnly Property InstrumentRange As OpcValueRange

Property value

OpcValueRange

An instance of the OpcValueRange class which provides the range information about the values provided by the unterlaying senor or instrument used to determine the value of the analog item node.