MP_TEM_Process

This function block is suitable for the Thermal Energy Meter type 22PE-.. and 22PEM-.. . For more information please visit www.belimo.com.

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 actuator. The type of the error can be read with iErrorId.

VAR_INPUT

MP_Address               : USINT := 1;
bStart                   : BOOL;
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.

strDataKL6771: the data structure with which the KL6771 function block must be linked (see DataKL6771).

TMpolling: the time for which the function block should address the actuator. Default 10 s, minimum time 1 s.

VAR_OUTPUT

bBusy                    : BOOL;
bError                   : BOOL;
iErrorId                 : MP_Error;
strMP_Serial_Number      : MP_Serial_Number;
rSensor1Value            : LREAL;
rRelativeVolumetricFlow  : LREAL;
rAbsoluteVolumetricFlow  : LREAL;
rGlycolConcentration     : LREAL;
rTemperature1_Remote     : LREAL;
rTemperature2_Integrated : LREAL;
rDeltaTemperature        : LREAL;
rAbsoluteCoolingPower    : LREAL;
rAbsoluteHeatingPower    : LREAL;
rTotalVolume             : LREAL;
nCoolingEnergy           : DINT;
nHeatingEnergy           : DINT;

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). bError goes TRUE at the same time.

strMP_Serial_Number: structure for the serial number. (see MP_Serial_Number).

rSensor1Value: sensor 1 value in mV/Ohm (0...65535).

rRelativeVolumetricFlow: relative volume flow rate in % (0...100).

rAbsoluteVolumetricFlow: absolute volume flow rate in l/s (0...100).

rGlycolConcentration: glycol concentration in % (0...100).

rTemperature1_Remote: temperature1 remote in °C (-20...12).

rTemperature2_Integrated: temperature2 integrated in °C (-20...12).

rDeltaTemperature: temperature delta in K (0...14).

rAbsoluteCoolingPower: absolute cooling power in kW (0...21.5).

rAbsoluteHeatingPower: absolute heating power in kW (0...21.5).

rTotalVolume: total volume in m³ (0...214748.36).

nCoolingEnergy: cooling energy in kWh (0...21474836).

nHeatingEnergy: heating energy in kWh (0...21474836).