Boosting The Precision Of The Thermocouple Range - NAiS FP0 Series Hardware Manual

Analog I/O Unit
4.6

Boosting the Precision of the Thermocouple Range

4.6

Boosting the Precision of the Thermocouple Range

When a high degree of precision is required, we recommend correcting the offset using
the program (we recommend initiating correction using the offset value taken
approximately 5 minutes after power is turned ON in order to take has been supplied,
taking into consideration the heat generated by the unit itself).
Example
200
Logical
Value
100
Temperature
K100 K107 K200 K207
of terminal
Digital value (WX2)
In the above case, seven should be subtracted from the value of WX2.
Program example
R9010
F27 (- ), WX2, K7, DT100
The value with the offset value of "7" subtracted is stored at DT100.
4 - 16
Offset error
Measured value
Matsushita Automation Controls
FP0