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Drawing
SECTION 20 Best Practices
267
CX-Supervisor only allows update rates in standard groups, which allows
a greater chance for CX-Server to optimise reads together. Old projects
may still be using non-standard update rate and are best changed to the
standard rates.
•
Use few update rates
Even when using the standard update rates, use as few different update
rates as possible, ideally 5 or less different rates. Try to use the same
update rates for the same areas of PLC memory so optimisations can
occur.
•
Use sensible update rates
Aim to keep update rates low. 5 seconds or 1 second updates should
suffice. If faster than 1 second updates are needed always question
"Why?". If fast update rates are required pay special attention to consider
if they can be disabled when not required.
•
Use Copy/Paste to Excel for bulk editing
During development, the point editor supports Copying and Pasting in
textual format so Excel's powerful editing / formulas can be used to create
definitions for points. This can allow thousands of consecutive points to be
created in seconds.
•
Use <Shift> and <Ctrl> to select multiple points for editing
During development, using <Shift> and <Ctrl> while selecting can be
useful to apply the same changes to many points.
•
Use Hungarian notation
Improve readability and maintenance by defining and using a standard
naming convention. For example Hungarian notation where variable
names are prefixed by a type character e.g. bMyBooleanPoint,
nMyIntegerNumber, txtMyTextPoint or rMyReal.
•
Use default optimisations
Leave the default communications optimisations turned on. In nearly all
cases they really do provide the best solution. Seek advice if you are
considering turning them off.
•
Delete unused points
After a development phase and prior to deployment, delete any unused
points. These are listed in the Point Editor under the group "<Unused
Points>".
20-4
Drawing
This section covers some good practices when drawing the screens. These
can greatly speed up application development and help produce a
professional looking system.
•
Start new pages with ‘Snap to Grid’
During the creative phase of any page this helps ensure objects are
automatically aligned and sized, saving time tidying up later.
•
Use cursor keys for fine adjustments
The cursor keys move selected objects by 1 pixel, or snaps to grid if <Ctrl>
held, and vice-versa when 'Snap to grid' is active. This is a lot easier than
using the mouse.
•
Group objects
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...