![background image](http://html1.mh-extra.com/html/omron/cx-supervisor/cx-supervisor_user-manual_744211266.webp)
Performance
SECTION 20 Best Practices
265
Figure 2: Bad grouping example
In Figure 2 we see the PLC Programmer has arbitrarily chosen to group data
by its format: Integers, then BCD then Floats (or even worse not at all!). When
the SCADA is written, this data is used by different pages and different update
rates. The different colours are to indicate that each block must be read
individually, totalling 9 communication requests, which could be for as few as 9
memory addresses.
Figure 3: Good grouping example
However in Figure 3 we see the PLC Programmer and SCADA developer
have reorganised the memory now there are only 3 blocks, which would be the
same for up to 3000 memory addresses. This is clearly far better than just 9
memory addresses with 9 communication requests. To achieve this, design
your application using the following rules:
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...