StartHistoryReadReq Object

The StartHistoryReadReq object is used in:

Properties

Property SubType Read Only Description Variant

Count

Integer

No

Sets the number of values in the array.

 

TagString

Variant

No

Sets the tag string for a history point tag.

Tag strings are stored in an indexed array as HistoryTagString objects.

Example

Write to the fifth tag string: MyVhsArray.TagString(5) = myHistTagString

HistoryTagString

TimeStampEnd

Date

No

Sets the timestamp for the ending history record of a time period for a given point. This field is an array of Date subtypes. The timestamp is set in Local time without milliseconds.

 

TimeStampStart

Date

No

Sets the timestamp for the starting history record of a time period for a given point. This field is an array of Date subtypes. The timestamp is set in Local time without milliseconds.