Filter
Top Products
7. Collection of Temperate
7-3
(2) Content of temperature conversion data [range : -20 to +40 °C] (Pt100)
The meaning of the each bit( b0 to b15) of temperature conversion data (in WX**) is as shown
below.
The sum of the bit “1” is the measured temperature.
<For example>
(1) HE000 = 1110 0000 0000 0000"
(HE) (H0) (H0) (H0)
-800 + 40 + 20 = - 20 °C
(2) H0600 = 0000 0110 0000 0000"
(H0) (H6) (H0) (H0)
2.5 + 1.25 = 3.75
When an input error occurs( below -25°C and over 45°C), the temperature conversion data is
H7FFF.
The following relation exits between temperature conversion data and actual temperature.
Temperature (°C) =
Note) “b0” is always “0” in normal time.
Relation between the temperature and temperature conversion data
Figure 7.4
b15 b14 b13 b12 b11 b10 b9 b8 b7 b5b6 b4 b1 b0
(°C)
-80 20
10
5
2.5
1.25
0.625
0.3125
0.15625
0.78125
0.390625
0.1953125
0.0976562
0.0488281
0.024414
Note)
H4000
H3000
H2000
H1000
H0800
-20
0
5
10
20
30
40
HE000
Temperate (°C)
b)Temperature conversion data(hexadecimal) -20 to +40 °C
Temperature conversion data(signed decimal data)
409.6