NAiS FP0-C32T User Manual

Analog I/O Unit
FP0
4-18
Matsushita Automation Controls
4.7 Averaging Function
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)
4 mV (K type thermocouple, 100
q
C)
41 mV (K type thermocouple, 1000
q
C)
Reading
time
(
*
Note)
ch0
ch1
ch0
ch1
ch0
ch1
ch0
ch1
ch0
ch1
ch0
ch1
ch0
ch1
70m
sec
70m
sec
70m
sec
560msec
10001000100010090100100 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
q
C)
K1000
K700
K400
K100
560 msec
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.)

NAiS FP0-C32T Specifications

General

Brand	NAiS
Model	FP0-C32T
Category	Controller
Language	English