423
Analog I/O Slave Unit Functions
Section 11-4
User Scaling
Analog input values (count values) are scaled to user-defined values. The
conversion values for 100% and 0% are set using the CX-Integrator.
Note
Reverse scaling, where the 0% scaling value is higher than the 100% scaling
value, is also supported.
Offset Compensation
Scaling the analog input values of linear sensors to distances produces
mounting error in the sensor. Offset compensation compensates for the error
that occurs during scaling. The offset amount is added to the scaled line
before processing, as shown in the following diagram. The offset (error) value
can be input between
–
28,000 to 28,000, but make sure that underflow or
overflow does not occur. The High Limit is 7FFE hex and the Low Limit is
8000 hex.
Note
The offset value can be set even when using default scaling.
Setting Using the CX-Integrator
1,2,3...
1.
Turn ON the power supply to the CompoNet Slave Unit.
Input
range
0 to 5 V
0 to 10 V
1 to 5 V
−
10 to 10 V
(CRT1-
AD04 only)
0 to
20 mA
4 to
20 mA
100%
Set using CX-Integrator (–28,000 to 28,000)
0%
Set using CX-Integrator (–28,000 to 28,000)
Discon-
nected
line
0000 hex
0000 hex
7FFF hex
0000 hex
0000 hex
7FFF hex
0%
100%
Scaling value
Value for 100% set by user
(Scaling point 2)
Conversion
Value for 0% set by user
(Scaling point 1)
Input signal range
Upper limit: 7FFE hex (32766)
100% scaling value
Scaled line
0% scaling
Offset value
(–28,000 to 28,000)
Input signal range
0%
100%
Lower limit: 8000 hex (
−
32768)
Summary of Contents for CRT1 - 10-2008
Page 2: ...CRT1 Series CompoNet Slave Units and Repeater Unit Operation Manual Revised October 2008...
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi...
Page 23: ...xxiv Conformance to EC Directives 6...
Page 51: ...28 Slave Unit Models Section 1 2...
Page 123: ...100 Connecting External I O for Slave Units Section 3 6...
Page 365: ...342 Temperature Input Units Section 7 5...
Page 381: ...358 Expansion Unit Specifications Section 8 2...
Page 418: ...395 Repeater Unit Section 10 2 Dimensions 42 3 50 3 1 27 5 95 mm...
Page 419: ...396 Repeater Unit Section 10 2...
Page 424: ...401 CX Integrator Section 11 1...
Page 575: ...552 Current Consumption Summary Appendix D 552...
Page 581: ...558 Index...
Page 583: ...560 Revision History...