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399
Analog Input Units
Section 7-2
Analog Input Signal
Ranges
Analog input data is digitally converted according to the input signal range as
shown below.
Note
When the input exceeds the specified range, the A/D conversion data will be
fixed at either the lower limit or upper limit.
Item
Voltage Input
Current Input
Number of inputs
4 inputs (4 words allocated)
Input signal range
0 to 5 VDC, 1 to 5 VDC,
0 to 10 VDC, or –10 to 10 VDC
0 to 20 mA or 4 to 20 mA
Max. rated input
±
15 V
±
30 mA
External input impedance
1 M
Ω
min.
Approx. 250
Ω
Resolution
1/6000 (full scale)
Overall accuracy
25
°
C
0.3% full scale
0.4% full scale
0 to 55
°
C
0.6% full scale
0.8% full scale
A/D conversion data
16-bit binary (4-digit hexadecimal)
Full scale for –10 to 10 V: F448 to 0BB8 Hex
Full scale for other ranges: 0000 to 1770 Hex
Averaging function
Supported (Set in output words n+1 and n+2.)
Open-circuit detection function
Supported
Conversion time
2 ms/point (8 ms/all points)
Isolation method
Photocoupler isolation between analog I/O terminals and internal circuits. No isolation
between analog I/O signals.
Current consumption
5 VDC: 100 mA max.; 24 VDC: 90 mA max.
Содержание CP1L - 12-2007
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Страница 13: ...xiv TABLE OF CONTENTS...
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Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 428: ...395 Clock Section 6 9...
Страница 429: ...396 Clock Section 6 9...
Страница 523: ...488 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...496 Replacing User serviceable Parts Section 10 2...
Страница 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...634 Index...
Страница 671: ...636 Revision History...