Limit Status

The limit status is not dependent on the major quality and substatus parts of a quality value.

The following table lists the limit status values and strings used in OPC Toolbox™ software.

Value

Limit Status String

Description

0

Not Limited

The value is free to move. Note that when the limit status has this value, it is omitted from any quality string in the toolbox.

1

Low Limited

The value is fixed at some lower limit.

2

High Limited

The value is fixed at some upper limit.

3

Constant

The value is a constant and cannot change.

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