3. AIAO Units
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b12 corresponds to CH1. When b12 = 1 or the scale exceeds the range, ERR LED will flash.
b13 corresponds to CH2. When b13 = 1 or the scale exceeds the range, ERR LED will flash.
b14 corresponds to CH3. When b14 = 1 or the scale exceeds the range, ERR LED will flash.
b15 corresponds to CH4. When b15 = 1 or the scale exceeds the range, ERR LED will flash.
C R # 3 4 :
Firmware version
Displaying the current firmware version in hex, e.g. version V1.00 is indicated as H’0100.
3.1.4.8 Applications
PT100 Temperature Measurement System
1. Description
•
Measuring temperature with a PT100 temperature sensor.
2. Devices
3. Addresses
•
D20 ~ D23: average Celsius temperature at CH1 ~ CH4
•
D30 ~ D33: average Fahrenheit temperature at CH1 ~ CH4
•
D40 ~ D43: present Celsius temperature at CH1 ~ CH4
•
D50 ~ D53: present Fahrenheit temperature at CH1 ~ CH4
4. Program
explanation
•
When ELC goes from STOP to RUN, set the number of samples for the average
input signals at CH1 ~ CH4 to 10.
•
Store the average Celsius temperature for CH1 ~ CH4 into D20 ~ D23.
•
Store the average Fahrenheit temperature for CH1 ~ CH4 into D30 ~ D33.
•
Store the present Celsius temperature for CH1 ~ CH4 into D40 ~ D43.
•
Store the present Fahrenheit temperature for CH1 ~ CH4 into D50 ~ D53.
5. Program
example
Ladder diagram:
Explanation:
Set the number of samples
at for CH1 ~ CH4 to 10
Read average Celsius
degrees from CH1 ~ CH4
Read average Fahrenheit
degrees from CH1 ~ CH4
Read present Celsius
temperature from CH1 ~
CH4
Read present Fahrenheit
temperature from CH1 ~
CH4
M1000
M1002
END
K0
K18
K4
K0
K24
K4
K0
K6
K4
K0
K12
K4
K0
K4
TO
K2
K10
D20
D30
D40
D50
FROM
FROM
FROM
FROM
Содержание ELCM Series
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Страница 107: ...ELC Operation Manual For more information visit www eaton com MN05003006E 2 20 MEMO...