Eaton ELCM Series, Руководство по эксплуатации

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E L C O p e r a t i o n M a n u a l
F o r m o r e i nf o r m a t i o n v i sit :
w w w. e a t o n . c o m
MN05003006E 1-154
4. Program example
Ladder diagram: Explanation:
Set CH1 to mode 0 (PT100
mode)
Set the Offset value for CH1
X0
M0
X1
K0 K40 K1
K0 K1 TOP
K0 K1
M0
TOP
TOP
X1
SET
H0
K20
H1
K2
K28
Disable CH1 configuration
changes
3.2.4.10 Applications
„
PT100 Temperature Measurement System
1. Description
y
Measuring temperature with the PT100 temperature sensor.
2. Addresses
y
M0: set the sampling range.
y
M1: switch the temperature units for average and present temperature
y
D20 ~ D23: average Celsius temperature for CH1 ~ CH4
y
D30 ~ D33: average Fahrenheit temperature for CH1 ~ CH4
y
D40 ~ D43: present Celsius temperature for CH1 ~ CH4
y
D50 ~ D53: present Fahrenheit temperature for CH1 ~ CH4
3. Program Description
y
M0=Off, set the sampling range for CH1 ~ CH4 to 10; M0=On set the number of
samples to 1.
y
M1=Off, temperature units = °C; M1=On temperature units = °F.
y
M0=Off, M1=Off, store the average Celsius temperatures for CH1 ~ CH4 into D20 ~
D23.
y
M0=Off, M1=On, store the average Fahrenheit temperatures for CH1 ~ CH4 into D30
~ D33.
y
M0=On, M1=Off, store the present Celsius temperatures for CH1 ~ CH4 into D40 ~
D43.
y
M0=On, M1=On, store the present Fahrenheit temperatures for CH1 ~ CH4 into D50
~ D53.
y
ELCM-PT04ANNN also stores the temperature values to special registers
(D9900-D9999). This allows reading the contents from these special registers to
obtain the temperature values. Units of temperature: 0.1°C or 0.1°F.