Point Ids And Distributed System Architecture (Dsa); Standard Point Types - Honeywell Experion LX Client Manual

Points
Examples
Using a device name prefix. All points associated with Boiler 3:
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Boiler3Temp
Boiler3InValve
Boiler3OutValve
Using recipes. A recipe is used to control a unit called B5. (A unit is typically
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something like a chemical cracker.) The recipe includes the following ingredients (each
ingredient contains a value that is downloaded to the unit): WATER, ACID, and
START.
You need to create the following points for unit B5:
B5WATER
B5ACID
B5START

Point IDs and Distributed System Architecture (DSA)

With DSA, you can have more than one point with the same point ID (or tag name) provided
that the name is unique to a given server and that the points do not belong to the same asset.
If points with duplicate IDs (tag names) are created, then they can be distinguished by
prepending the tag name with the server alias. If, for instance, there are two points with the
duplicate tag name FIC123 on servers NorthPlantSrv and SouthPlantSrv, then the
prepended tag names of each point would be NorthPlantSrv:FIC123 and
SouthPlantSrv:FIC123. The prepended tag name can be used wherever normal tag names
are used (for example, in a HMIWeb display).
Two important restrictions for points with duplicate tag names are:
They must not belong to the same asset.
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Their prepended tag name (for example, NorthPlantSrv:FIC123) must not exceed 40
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characters.

Standard point types

Experion provides the following types of standard (SCADA) point that are used to exchange
data with controllers other than Experion Process Controllers.
Standard point type Use
Analog
Status
Honeywell 2017
Continuous values, such as temperature or pressure.
Digital values (on and off).
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