Learn about Location4 (scan class) (RDBMS)

Location4 (scan class) determines the frequency at which input points are scanned for new values. Set this attribute to 0 for event-based (trigger) tags, unsolicited inputs, and output points.

For auditing changes to points, set Location4 to -1 to record the short-form version of tag attribute changes or -2 to record the long-form version.