APIs

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Constructor

HistoryReadRequest

(
  • options
)

Parameters:

  • options Object
    • [requestHeader] RequestHeader optional
    • [historyReadDetails] ExtensionObject optional

      Maximum age of the value to be read in milliseconds

    • [timestampsToReturn= 3] TimestampsToReturn optional

      An enumeration that specifies the Timestamps to be returned for each requested Variable Value Attribute.

    • [releaseContinuationPoints] Boolean optional
    • [nodesToRead] HistoryReadValueId[] optional

      List of Nodes and their Attributes to read. For each entry in this list, a StatusCode is returned, and if it indicates success, the Attribute Value is also returned.

Methods

binaryStoreSize

() Number

Calculate the required size to store this object in a binary stream.

Returns:

Number:

decode

(
  • stream
  • [option]
)

decode the object from a binary stream

Parameters:

encode

(
  • stream
)

encode the object into a binary stream

Parameters:

isValid

() Boolean

verify that all object attributes values are valid according to schema

Returns:

Boolean:

toString

() String

Returns:

String:

Properties

historyReadDetails

ExtensionObject

Maximum age of the value to be read in milliseconds

nodesToRead

HistoryReadValueId[]

List of Nodes and their Attributes to read. For each entry in this list, a StatusCode is returned, and if it indicates success, the Attribute Value is also returned.

timestampsToReturn

TimestampsToReturn

An enumeration that specifies the Timestamps to be returned for each requested Variable Value Attribute.

Default: 3