OPC DataHub™ : Version 6.4
	OPC DataHub Command Set

`read`

read — reads a complete point definition.

Syntax

(read name)

The complete point definition in a message, with this syntax:

(point name type value [conf security locked seconds nanoseconds flags quality])

where:

name: The name of the point.
type: The data type of the point, one of integer, floating point, or character string.
value: The value of the point.
conf: The confidence level of the point, 0 - 100 percent, unused by most applications.
security: The security level of the point, 0 to 32768, where higher numbers represent higher security.
locked: 0 for locked, or 1 for unlocked.
seconds: The operating system time in seconds when the point was read.
nanoseconds: The number of nanoseconds after seconds when the point was read.
flags: User-defined flags.
quality: A constant representing a quality of the connection, assigned by the DataHub for this point, such as Good, Bad, Last known, Local override, etc. The possible values are those supported by OPC in Microsoft Windows.

This command reads the current value of a point, along with all the other information it contains. See also cread.


quality		report