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 |
|---|---|
| entity |
Top-level dicts with a unique identifier |
| point |
Data point such as a sensor or actuator |
tags
| cur |
Supports current value |
|---|---|
| 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 |
| vfd |
Variable-frequency drive |
| writable |
Supports writing data |