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Design
SECTION 20 Best Practices
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SECTION 20
Best Practices
This chapter details the best practices to get the most from CX-Supervisor
including how to plan and design your application.
20-1
Design
This section covers some good design practices. There is no doubt, as with
everything in life that a good design is essential and creating a good CX-
Supervisor application is no different. Poorly designed applications may run
slower, provide slower user feedback, be difficult to maintain - increasing costs
and in some cases not fulfil all User Requirements resulting in the application
being rewritten. Never fall into the trap "code first, think later".
20-1-1 Design your page layouts and navigation flow
Traditional design works well for most applications. Providing an application
with a clear structure can make applications very easy to navigate even if they
have many pages.
•
Create a Main overview / navigation page. This can include basic
information like company logo and date/time. If the application will be
using security levels provide buttons to login.
•
Add links from the main page to detailed system areas with either buttons
or schematic diagram e.g. Process 1, Process 2.
•
Add links from the main page, if required, to pages dedicated to Alarms,
Diagnostics, Reports, Data Logging, Statistics etc
•
If the system has repeated functions e.g. 5 similar machines, instead of
creating 5 pages think about creating 1 page that can show data for any
machine. This can be achieved using indirection and/or keeping data in
arrays, and just setting the index to display the machine you require. Minor
differences (e.g. a button for Process 1 only) can be shown or hidden
depending on the index. This will speed up development and also help
when the application is maintained.
Organise the pages sensibly on screen. Make sure that only the pages that
are necessary are open. When a page is no longer needed close it. CX-
Supervisor will update all pages that are open, therefore if lots of pages are
open then it may be doing a lot of unnecessary work that will slow down the
application. For pages that are displayed in the same place, set the 'Display
Mode' property to 'Replace'. This allows pages to automatically be closed
when a new page is loaded.
20-1-2 Use Logical Point names instead of physical addresses
Logical point names (like 'Boiler_3_Pressure') provide more flexibility than
physical addresses (like 'D8319') allowing the PLC program and addresses to
be changed, without impacting the SCADA. They also make it much easier
read during development, and more importantly, during maintenance.
•
Perform all data conversion in PLC ladder
Although today's PCs have excellent maths performance consider the
format of the PLC data and how it will be used. It can be temping to scale
a point value when read e.g. to change the units of measurement, or
Note:
If the Logical symbols are created in CX-Programmer, it can link them to a CX-
Server file which CX-Supervisor can then 'Import' into the Points Editor. This is
a very quick method of creating all the required points.
Содержание CX-Supervisor
Страница 1: ...CX Supervisor Software Cat No W10E EN 01 User Manual Software Release 3 1...
Страница 3: ...Copyright Notice 2...
Страница 16: ...15...
Страница 17: ...16...
Страница 27: ...Tip of the Day SECTION 1 Graphics Editor 26...
Страница 35: ...CX Supervisor Preferences SECTION 2 Pages 34...
Страница 79: ...Responding to Events SECTION 5 ActiveX Objects 78...
Страница 115: ...Printing the Graphics Library SECTION 7 Graphics Library 114...
Страница 181: ...Data Logging SECTION 11 Data Logging 180...
Страница 201: ...Examples SECTION 12 Databases 200...
Страница 243: ...Performance Monitor SECTION 16 Application Analysis Performance Monitor 242...
Страница 253: ...Using with Omron s CX Server OPC SECTION 17 Using CX Supervisor as an OPC Cli 252...
Страница 259: ...Creating a CX Supervisor Client application SECTION 18 Connecting to a remote CX 258...
Страница 263: ...Adding a Point Linked to a Parameter SECTION 19 Connecting to Omron Industrial 262...
Страница 271: ...Data Logging SECTION 20 Best Practices 270...
Страница 275: ...Configuring a Server PC running Windows NT or 2000 Appendix A Configuring a PC 274...
Страница 277: ...Appendix B Frequently Asked Questions 276...
Страница 296: ...Appendix B Frequently Asked Questions 295...
Страница 297: ...Appendix B Frequently Asked Questions 296...
Страница 298: ...Appendix B Frequently Asked Questions 297...
Страница 299: ...Appendix B Frequently Asked Questions 298...
Страница 333: ...Revision history 332...