def
cur-point
Point with support to report a "real-time" current value. By real-time we typically mean freshness within the order of a few seconds or at most a few minutes. For systems with direct I/O the current value is typically driven by the I/O scan rate. For overlay systems which acquire data via a protocol such as BACnet or Modbus then the current value is typically refreshed using polling or subscription over a network. Also see Points chapter.
conjunct
meta
usage
supertypes
marker |
Marker labels a dict with typing information |
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entity |
Top-level dicts with a unique identifier |
point |
Data point such as a sensor or actuator |
tags
cur |
Supports current value |
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curErr |
Error description when |
curStatus |
Status of point's current value reading |
curVal |
Current value of a point |
dis |
Display name for an entity |
enum |
Defines an eumeration of string key names |
equipRef |
Reference to equip which contains this entity |
his |
Supports historization of data |
id |
Defines the unique identifier of an entity in system using a |
kind |
Kind name used to identity a value data type |
maxVal |
Inclusive maximum for a numeric value |
minVal |
Inclusive minimum for a numeric value |
pointFunction |
Classifies the point as a sensor, command, or setpoint |
pointQuantity |
Quantity the point senses or controls |
pointSubject |
What the point senses or controls |
siteRef |
Reference to site which contains the entity |
spaceRef |
Reference to space which contains this entity |
systemRef |
Reference to system |
tz |
Timezone identifier from standard timezone database |
unit |
Unit identifier from standard unit database |
writable |
Supports writing data |