F
3--
08
T
E
M
P
8C
h.
Te
m
pe
ra
tu
re
In
pu
t
10--17
F3--08TEMP 8-Channel Temperature Input
Sometimes it is helpful to be able to quickly convert between the signal levels and the
digital values. This is especially helpful during machine startup or troubleshooting.
The following table provides formulas to make this conversion easier.
Range
If you know the digital value ... If you know the temperature ...
--55 to150
_
C
--67 to 302
_
F
For example, if you have measured the
temperature at 30
_
C, you would use the
following formula to determine the digital
value that should be stored in the register
location that contains the temperature.
D
=
4095
1000
(T
+
273.2)
D
=
4095
1000
(30
+
273.2)
D
=
(4.095) (303.2)
D
=
1241
Now you have all the necessary information to get your analog module installed and
operating correctly!
Temperature and
Digital Value
Conversions
T
=
1000D
4095
-
273.2
D
=
4095
1000
(T
+
273.2)
T
=
1000D
2276
-
459.6
D
=
2276
1000
(T
+
459.6)
