144
Analog Output Units
Section 5-5
5-5-2
I/O Data and Allocation Methods
When the Analog Output Unit’s default settings are used, output data is allo-
cated. No special settings are required. Two words (four bytes) of output data
are allocated as two’s complement.
5-5-3
Functions and Setting Methods
Scaling
The default setting is used to perform DA conversion, converting analog out-
put values that have been scaled to a count of 0 to 6,000 into corresponding
digital values in the output signal range. Scaling can be used to change
scaled values that correspond to the output signal range into other values
required by the user (industry unit values). Scaling also eliminates the need
for ladder programming in the Master to perform math operations. The follow-
ing two methods of scaling can be used.
Default Scaling
Default scaling converts analog output values into voltage or current values.
The units used are mV or
µ
A. When default scaling is selected, scaling is per-
formed according to the output range, as shown in the following table.
User Scaling
User scaling allows analog output values to be scaled to user-defined values.
The conversion values for 100% and 0% are set using the Setting Tool.
15
8
7
0
Analog output value for Output 0
Analog output value for Output 1
Output
range
0 to 5 V
0 to 10 V
1 to 5 V
–10 to 10 V
0 to
20 mA
4 to
20 mA
100%
5,000 mV
10,000 mV 5,000 mV
10,000 mV
20,000
µ
A 20,000
µ
A
0%
0000 mV
0000 mV
1,000 mV
–10,000 mV 0000
µ
A
4,000
µ
A
Off-wire
---
---
7FFF hex
---
---
7FFF hex
Input
range
0 to 5 V
0 to 10 V
1 to 5 V
–10 to
10 V
0 to
20 mA
4 to
20 mA
100%
Set using Setting Tool (–28,000 to 28,000)
0%
Set using Setting Tool (–28,000 to 28,000)
Off-wire
---
---
7FFF hex
---
---
7FFF hex
Scaling value
100% value set by
user (scaling point 2)
Output conversion
0% value set by user
(scaling point 1)
Output signal range
0%
100%
Содержание SmartSlice GRT1-Series
Страница 1: ...Slice I O Units Cat No W455 E1 06 SmartSlice GRT1 Series OPERATION MANUAL ...
Страница 2: ...SmartSlice GRT1 Series Slice I O Units Operation Manual Revised November 2007 ...
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Страница 13: ...xiv ...
Страница 21: ...xxii EC Directives 6 ...
Страница 63: ...42 Connecting Turnback Cables Section 3 3 ...
Страница 109: ...88 Digital I O Units Section 4 6 ...
Страница 251: ...230 Maintenance Information Window Section 7 3 Maintenance Information Window ...
Страница 293: ...272 GRT1 CP1 L Positioning Unit Section 7 5 ...
Страница 301: ...280 GRT1 END End Unit Section 8 5 Dimensions 11 9 11 9 55 7 1 5 19 5 83 5 2 9 2 9 OMRON ...
Страница 323: ...302 Troubleshooting by Unit Section 9 5 ...
Страница 351: ...330 Explicit Messages Appendix A ...
Страница 355: ...334 Power Consumption and Weight Tables Appendix C ...
Страница 357: ...336 I O Current Consumption Table Appendix D ...
Страница 365: ...344 Revision History ...