![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:
Summary of Contents for CX-Supervisor
Page 1: ...CX Supervisor Software Cat No W10E EN 01 User Manual Software Release 3 1...
Page 3: ...Copyright Notice 2...
Page 16: ...15...
Page 17: ...16...
Page 27: ...Tip of the Day SECTION 1 Graphics Editor 26...
Page 35: ...CX Supervisor Preferences SECTION 2 Pages 34...
Page 79: ...Responding to Events SECTION 5 ActiveX Objects 78...
Page 115: ...Printing the Graphics Library SECTION 7 Graphics Library 114...
Page 181: ...Data Logging SECTION 11 Data Logging 180...
Page 201: ...Examples SECTION 12 Databases 200...
Page 243: ...Performance Monitor SECTION 16 Application Analysis Performance Monitor 242...
Page 253: ...Using with Omron s CX Server OPC SECTION 17 Using CX Supervisor as an OPC Cli 252...
Page 259: ...Creating a CX Supervisor Client application SECTION 18 Connecting to a remote CX 258...
Page 263: ...Adding a Point Linked to a Parameter SECTION 19 Connecting to Omron Industrial 262...
Page 271: ...Data Logging SECTION 20 Best Practices 270...
Page 275: ...Configuring a Server PC running Windows NT or 2000 Appendix A Configuring a PC 274...
Page 277: ...Appendix B Frequently Asked Questions 276...
Page 296: ...Appendix B Frequently Asked Questions 295...
Page 297: ...Appendix B Frequently Asked Questions 296...
Page 298: ...Appendix B Frequently Asked Questions 297...
Page 299: ...Appendix B Frequently Asked Questions 298...
Page 333: ...Revision history 332...