![background image](http://html1.mh-extra.com/html/omron/cx-supervisor-v2-0/cx-supervisor-v2-0_user-manual_744213201.webp)
CHAPTER 11 – Data Logging
OMRON
Page 178
Release 2.0
Item Properties
These options enable an items name and associated expression to be entered. Its data type can be
selected and if required a deadband value can be applied to the measured value.
The
Item Name
field allows the Item to be given a meaningful name. The entry should be kept short
but also be logical for clarification. A maximum of 26 characters is allowed.
The
Expression
field defines the point name or expression that will be logged. The Browse button
allows easy point selection. For details on how expressions or points are formulated Refer to chapter
3, Points.
The
Data Type
field determines the type of data to be logged. Select either Boolean, Integer or Real.
For points, this is automatically picked up from the points database. For expressions, the required
type must be selected.
The
Deadband
field enables a percentage limit or ‘Deadband’ to be applied to the logging expression.
This allows the value of the expression to change within the percentage limit without being logged.
This is particularly useful when logging analogue values which are subject to noise. Each sample is
checked (when the value changes for ‘On Change’ sampling, or every log period for ‘On Interval’)
against the last logged value. While the value varies within the deadband, the values are ignored.
Immediately the value exceeds the deadband limits the new value will be logged. This may
dramatically reduce file size, and ease analysis.
Entering a value of 0%, i.e. no deadband, will cause every sample to be logged.
Summary of Contents for CX-SUPERVISOR - V2.0
Page 2: ...CX Supervisor User Manual Software Release 2 0...
Page 3: ......
Page 5: ...CX Supervisor User Manual OMRON Page ii Revision 2 0...
Page 7: ...CX Supervisor User Manual OMRON Page iv Revision 2 0...
Page 11: ...CX Supervisor User Manual OMRON Page viii Revision 2 0...
Page 13: ...CX Supervisor User Manual OMRON Page x Revision 2 0...
Page 15: ...CX Supervisor User Manual OMRON Page xii Revision 2 0...
Page 17: ...CX Supervisor User Manual OMRON Page xiv Revision 2 0...
Page 19: ...CX Supervisor User Manual OMRON Page xvi Revision 2 0...
Page 21: ...CX Supervisor User Manual OMRON Page xviii Revision 2 0...
Page 23: ......
Page 67: ......
Page 97: ......
Page 137: ...CHAPTER 7 Graphics Library OMRON Page 114 Release 2 0...
Page 183: ...CHAPTER 9 Animation OMRON Page 160 Release 2 0...
Page 215: ......
Page 263: ......
Page 269: ......
Page 274: ...OMRON CHAPTER 16 Connecting to Omron Industrial Components Release 2 0 Page 251...
Page 275: ......
Page 285: ......
Page 319: ......
Page 331: ......
Page 351: ......
Page 359: ...GLOSSARY OF TERMS CX Supervisor User Manual OMRON Page 336 Release 2 0...