Beckhoff TwinCAT 2 TX1200, Руководство пользователя

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Programming
TX1200 45 Version: 1.1
iVOC : INT;
iHumidity : INT;
bFlushStatus : BOOL;
bBusy: this bit is set for as long as the function block is active.
bError: the output becomes TRUE as soon as an error occurs. This error is described via the iErrorId
variable.
iErrorId: this output outputs an error code in the event of an error (see MP_Error [
}
70] ). bError goes TRUE
at the same time.
strMPX_ERR: sensor error messages (see MP_BUS_MPX_ERROR [
}
73] ).
iU: 0...10 V UNIT 1 mV.
bDigital: DI 24 V.
iTemp: 0...50 °C Unit: 0.01 °C.
iCO2: 0...2000 ppm Unit: 1 ppm.
iVOC: 0...2000 ppm Unit: 1 ppm (pseudo).
iHumidity: 10...90 % Unit: 0.01 %.
bFlushStatus: VOC gradient threshold exceeded, FALSE = air quality OK, TRUE = air quality not OK, flush.
6.2.13 MP_PTH
This function block is used to control and monitor a PTH sensor.
MP_Address is used to specify the MP-Bus device with which the function block is to communicate. bStart
activates communication with the MP-Bus device. bBusy indicates that the function block is active. If bStart
remains TRUE, the device is addressed cyclically with a period specified by the time in TMPolling . The time
should be set longer than 1 s. bError is used to indicate an error in communication with the sensor. The type
of the error can be read with iErrorId .
If an external sensor is connected to the sensor, its type is to be indicated in iSensorTyp . If no sensor is
connected, the value "0" should be entered, or the variable left open. A digital sensor should be
parameterized with "3". The state of the sensor is output through the variable
iYSensor .
VAR_INPUT
MP_Address : USINT := 1;
bStart : BOOL;
iSensorTyp : INT;
strDataKL6771 : DataKL6771;
TMpolling : TIME := t#10s;
MP_Address: MP-Bus address of the slave.
bStart: a positive edge starts the function block. If this remains continuously TRUE, the function block will be
activated cyclically with a period specified by the time in TMPolling .