About point status
Along with a point’s value, its status is available at point
Out. Status flags indicate status, which may get set singly or in combinations.
Status flags are typed by a unique text string (for example: alarm or down), and many have associated status colors (a background and a foreground). For example, the default status colors for alarm is white text on red background. Status without any flags set is considered normal (text {ok}), and is without color indication.
NOTE: For each installed lexicon, text strings for status flags (plus associated colors), are individually adjustable by editing
default values in that host’s
baja lexicon, using
en: baja lexicon.
Status flags are set differently depending on the type of point or control object. For simple control points (NullProxyExt) the following status flags are the only ones set and cleared:
- alarm indicates that a point is currently in an alarm condition as defined by its alarm extension.
- unackedAlarm indicates that a point has an alarm extension assigned to an alarm class that requires acknowledgment, but the last alarm event has not yet been acknowledged. The point may or may not be in alarm.
- override applies to writable points only, during a user-initiated action at priority levels
In8(override) orIn1(emergency). The override flag clears when the action times out, or when a user issues an Auto action at that same priority level. - null indicates that a writable point has null or otherwise invalid value at
In1–In16, plus null configured as theFallbackvalue.
See the following image for examples of override and alarm status in simple control points.
Figure 76. Status with simple control points
