FP0 Hardware
Analog I/O Unit
4-18
Matsushita Electric Works (Europe) AG
4.7.2
Averaging for a Thermocouple Range
When the input range is set to a thermocouple (K, J or T type), processing like that
shown below is carried out internally in the analog I/O unit.
Operation
item
Time chart
Analog input
value ch0
(thermocouple
input)
4mV (K type thermocouple, 100
°
C)
41mV (K type thermocouple, 1000
°
C)
Reading time
(see note)
ch0
ch1
ch0
ch1
ch0
ch1
ch0
ch1
ch0
ch1
ch0
ch1
ch0
ch1
70m
sec
70m
sec
70m
sec
560msec
1000
1000
1000
100
90
100
100
1000
Internal
processing for
analog I/O unit
ch0
100
100
90
min
100
1000
max
(100+100+100)
÷
3=100
100
100
1000
1000
max
(100+100+1000)
÷
3=400
100
1000
1000
1000
max
(100+1000+1000)
÷
3=700
1000
1000
1000
max
(1000+1000+1000)
÷
3=1000
90
min
90
min
100
min
1000
Averaging of results from 3 times, with maximum/minimum
values deleted
Digital output
value (WX)
(temperature
°
C)
K1000
K700
K400
K100
560msec
Starting from the most recent data, the data from the last five times is taken. The
maximum and minimum values are deleted, and then averaging is carried out on the
remaining three items. The value obtained from the most recent averaging is normally
used as the value output at this time. (If a fraction results from the calculation, it is
rounded off.)
Note
In the read timing, the minimum and maximum values are
subtracted from the data from the last ten times, just as in
averaging processing on
remaining eight times is used for the averaging.
Содержание FP Series
Страница 12: ...Chapter 1 Overview...
Страница 21: ...FP0 Hardware Overview 1 10 Matsushita Electric Works Europe AG...
Страница 22: ...Chapter 2 Control Units...
Страница 44: ...Chapter 3 Expansion I O Units...
Страница 67: ...FP0 Hardware Expansion I O Units 3 24 Matsushita Electric Works Europe AG...
Страница 68: ...Chapter 4 Analog I O Unit...
Страница 87: ...FP0 Hardware Analog I O Unit 4 20 Matsushita Electric Works Europe AG...
Страница 88: ...Chapter 5 FP0 I O Link Unit MEWNET F...
Страница 102: ...Chapter 6 Power Supply Unit...
Страница 105: ...FP0 Hardware Power Supply Unit 6 4 Matsushita Electric Works Europe AG...
Страница 106: ...Chapter 7 I O Allocation...
Страница 112: ...Chapter 8 Installation...
Страница 122: ...Chapter 9 Wiring...
Страница 139: ...FP0 Hardware Wiring 9 18 Matsushita Electric Works Europe AG...
Страница 140: ...Chapter 10 Trial Operation...
Страница 143: ...FP0 Hardware Trial Operation 10 4 Matsushita Electric Works Europe AG...
Страница 144: ...Chapter 11 Self Diagnostic and Troubleshooting...
Страница 156: ...Appendix A System Registers...
Страница 170: ...Appendix B Special Internal Relays...
Страница 174: ...Appendix C Special Data Registers...
Страница 183: ...FP0 Hardware Special Data Registers C 10 Matsushita Electric Works Europe AG...
Страница 184: ...Appendix D Dimensions...
Страница 195: ...FP0 Hardware Dimensions D 12 Matsushita Electric Works Europe AG...