User Manual

Graphics Builder
Overview
5
A6V11604297_en--_e
61 | 196
③
point or shadowPoint
Every data point in the system has a point or shadowPoint tag.
Point or shadowPoint objects are not structured and have references to a parent equip or site object.
In this example, Valve is an analog output point and has a parent equip reference (equipRef) to
Cooling coil.
Each data point also has one of the following tags to classify its type:
● cmd, which classifies a data point as an output, AO/BO, command, or actuator.
● sensor, which classifies a data point as an input, AI/BI, or sensor.
● sp, which classifies a data point as a setpoint, soft point or process control variable.
Note
A best practice when working with binding queries is to use (point or shadowPoint) to cover both
possible cases and accommodate future enhancements.
How a point or equip is identified in the system
Relative bindings create a structure that is used to dynamically identify a point or equip. References in relative
bindings always start at lower levels of the building hierarchy and link to higher levels. That is, “parents” do not
reference their “children”. Rather, data points reference their “parent” in the building hierarchy, the “parent”
references the “grandparent”, and so forth.
The following figure outlines the information flow in the system.