| Input RES |
REAL (measured resistance in ohms) |
| RS |
REAL (resistance at 0°C) |
| TS |
REAL (temperature is defined in RS) |
| Output |
REAL (measured temperature) |
|
TEMP_SI calculates the temperature of a resistor sensor input values from the RES (resistance in ohms) and RS, Resistance at TS in °C. It is specified in contrast to the modules TEMP_NI and TEMP_PT with their R0 at 0°, the resistance RS is given in SI sensors at different temperatures (eg 25° C for KTY10). Therefore, the module has an input for RS and another for TS. |
| The calculation is done using the formula |
|
|
RES_SI = RS + A(T-TS) + B(T-TS)² |
|
A = 7.64E-3; B = 1.66E-5 |
|
The calculation is suitable for temperatures from -50.. +150 °C. |
