A Graphic Display is a vector-based, pictorial screen used to depict industrial equipment, manufacturing processes and building automation systems including motion animation, color changes, sounds and dynamic data. Bitmaps, JPEGS, and Gifs can also be included with the vector-based objects to produce graphical representations of the equipment, facilities and processes controlled.
The DRAW Graphic Builder is an object-oriented and vector-based graphics program similar to in concept to the popular AutoCAD® software.
Vectors are more compact than comparable Bitmaps, Gifs or Jpegs and allow better resolution on almost any display or "zoom" magnification. It is recommended to use the Vector Based objects in WebAccess whenever possible in order to build complex displays with smaller file sizes. The smaller the file size will enable a faster download to WebAccess Browser based clients. The future of the Internet is to use vector based graphics.
There are source files (typically *.DRW) and runtime version (typically *.BGR) of graphics.
The *.DRW files are edited in the Graphics Builder (DRAW).
The *.BGR files are downloaded by Clients (VIEW). The *.BGR files cannot be edited.
You can always generate new *.BGR from *.DRW files. A single *.DRW can be used to generate different *.BGR by saving different portions of the graphic. Usually *.BGR and *.DRW files have the same name (e.g. Main.bgr and Main.drw), but they can be named differently (e.g. Main.bgr and MyMain.drw)
The following Displays are generated us the Graphics Builder:
Graphic
Displays — These are user built pictorial representations of a
process and the associated dynamic information.
The extension for source files (DRAW) are: *.DRW
The extension for runtime (VIEW) files are: *.BGR
Block Detail Displays - provide access to detailed information about a multiple parameter block type tag, such as measurement, setpoint, output and tuning parameters. Block Detail Displays are commonly used to view PID controllers. A single block detail display can be used to view all tags of the same Block Type. Engineers and technicians can modify these. See "System & Template Displays” or Block Detail Display, section 9.2.3. Default Block detail displays are provided for many Web Access Device types and Drivers.
There can be multiple pages assigned to a block detail display, numbered *.BD1, *.BD2, *.BD3 etc. For example, a multiple page for a VAV Block would have VAV.BD1, VAV.BD2 and VAV.BD3.
The file extension for source (DRAW)
files are: *.DXX
The file extension for runtime (VIEW) files are: *.BDX
(where x is an integer starting with 1).
The following displays are pre-built. WebAccess uses these as a "template" and fills in the data fields with the real-time data for the selected Tag or Group. This allows one graphic template to be used to view many tags as if it where multiple copies of the same display. The for example, the Point Detail Display ensures every tag in the system can be viewed by at least one pre-built graphic. The source (DRAW) files typically have the *.dxx extensions, although *.drw files can be used. The runtime (VIEW) files usually must have the *.bxx extension to function with the pushbuttons, keymacros and menus.
Trends and X-Y Plots — present real-time and historical data in trends and x-y plots. WebAccess uses template(s) to generate all Trend Displays from user specified Trend Groups. The user can edit the default template to customize the appearance of trends. There are four trend types: Real-time trends, Data Log Trends, Real-time XY plots and Data Log X-Y plots. Real-time trends do not record data to the hard drive and are typically used for temporary data like tuning. Data Log trends access Data Log records from the hard drive of the SCADA node and update in real-time. For more information, see Data Logging & Trends, section 6 .
The default source (DRAW) files for
trends are: DLogTRD.DXX, DLogXYP.DXX, RealTRD.DXX, and
RealXYP.DXX
The runtime (VIEW) files for trends are: DLogTRD.BXX, DLogXYP.BXX, RealTRD.BXX, and RealXYP.BXX
Recipe Displays — These list the preset and current values for dynamic points listed in recipe files, which are set up using the Recipe Handler option. For more information, see Recipes, section 13.
The default source (DRAW) file for
Recipes is: Recipe.DXX
The runtime (VIEW) files for Recipes: Recipe.BXX
Overview Group Displays — summarize the information contained in faceplate groups. Web Access generates all overviews from a default template graphic. Users can modify this template in the Graphics Builder. By building a list of Tags using the Faceplate Group properties page in Project Manager, WebAccess will generate a large number of displays quickly. For more information, see "System & Template Displays” or Overview Display, section 9.3.2.
The default source (DRAW) file for
Overview is: Ovrgrp.DXX
The runtime (VIEW) files for Overview is: Ovrgrp.BXX
Faceplate Group Displays — summarizes the information for a group of 8 tags. The user specifies the tag names. WebAccess uses the same faceplate template to view all Faceplate Groups. This is a fast way to view a large number of tags, both block type and single point tags, by simply specifying the tag names in a list. Users can edit the Faceplate Template display in the Display Editor.
For more information, see "System & Template Displays” or Faceplate Group Display, section 9.3.1.
The default source (DRAW) file for
Overview is: fplgrp.dxx
The runtime (VIEW) files for Overview is: fplgrp.BXX
Point Detail Displays — provide access to detailed point information, such as alarms, alarm limits, communications status and other "fields" associated with the tag. Three default Point Detail displays are provided:
· Analog.BPD can view all analog-type tags in the system.
· Digital.BPD can view all Discrete-type tags in the system
· Text.BPD can view all Text-type Tags in the system
Engineers and technicians can modify these. See "System & Template Displays” or Point Detail Display, section 9.2.2.
The extension for source (DRAW) files are
*.DXX
(e.g. analog.dxx, discrete.dxx, and text.dxx)
The extension for runtime (VIEW) files
are *.BPD
(e.g. analog.bpd, discrete.bpd, and text.bpd)