Beckhoff TwinCAT 2 TX1200, Руководство пользователя

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Programming
TX1200 64 Version: 1.1
6.3.2 NI1000_TO_INT : INT
This function calculates a temperature from the value of an NI1000 resistor.
Connect this function to iMP_Sensor_Analog . As output, you receive an INT variable that represents the
temperature with a resolution of 0.01 °C (20.5 °C, for example, is represented as 2050).
The lowest valid value of 867 ohms corresponds to -25 °C. If the value is smaller than this, 16#7FFD is
output.
The largest valid value of 1583 ohms corresponds to 95 °C. If the value is greater than this, 16#7FFE is
output.
VAR_INPUT
MP_Value : WORD;
MP_Value: input for an ohmic NI1000 sensor
NI1000_TO_INT: temperature in 0.01 °C.
6.3.3 NTC_TO_INT : INT
This function calculates a temperature from the value of an NTC resistor.
Connect this function to iMP_Sensor_Analog . As output, you receive an INT variable that represents the
temperature with a resolution of 0.01 °C (20.5 °C, for example, is represented as 2050).
The lowest valid value of 104 ohms corresponds to 145 °C. If the value is smaller than this, 16#7FFD is
output.
The largest valid value of 48555 ohms corresponds to -20 °C. If the value is greater than this, 16#7FFE is
output.
VAR_INPUT
MP_Value : WORD;
MP_Value: input for an ohmic NTC sensor.
NTC_TO_INT: temperature in 0.01 °C.
6.3.4 PT1000_TO_INT : INT
This function calculates a temperature from the value of a PT1000 resistor.
Connect this function to iMP_Sensor_Analog . As output, you receive an INT variable that represents the
temperature with a resolution of 0.01 °C (20.5 °C, for example, is represented as 2050).
The lowest valid value of 862 ohms corresponds to -35 °C. If the value is smaller than this, 16#7FFD is
output.