MP_FlowMeter_Process
This function block is suitable for the flow meters (FM). 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 second. bError is used to indicate an error in communication with the actuator. The type of the error can be read with iErrorId.
Inputs
VAR_INPUT
MP_Address : USINT := 1;
bStart : BOOL;
strDataKL6771 : DataKL6771;
TMpolling : TIME := t#10s;
END_VAR
Name | Type | Description |
---|---|---|
MP_Address | USINT | MP-Bus address of the slave. |
bStart | BOOL | 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. | |
TMpolling | TIME | The time for which the function block should address the actuator. Default 10 s, minimum time 1 s. |
Outputs
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
iErrorId : MP_Error;
strMP_Serial_Number : MP_Serial_Number;
nSensor1Value : DINT;
rRelativeVolumetricFlow : LREAL;
rAbsoluteVolumetricFlow : LREAL;
rGlycolConcentration : LREAL;
rTemperature : LREAL;
rTotalVolume : LREAL;
END_VAR
Name | Type | Description |
---|---|---|
bBusy | BOOL | This bit is set for as long as the function block is active. |
bError | BOOL | This output goes 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. bError goes TRUE at the same time. | |
strMP_Serial_Number |
Structure for the serial number | |
nSensor1Value |
DINT |
Sensor 1 Value in mV/ohm (0...65535). |
rRelativeVolumetricFlow |
LREAL |
Relative volume flow rate in % (0...150). |
rAbsoluteVolumetricFlow |
LREAL |
Absolute volume flow rate in l/s (0...100). |
rGlycolConcentration |
LREAL |
Glycol concentration in % (0...100). |
rTemperature |
LREAL |
Temperature in °C (-20...120). |
rTotalVolume |
LREAL |
Total volume in m³ (0...214748.36). |
Requirements
Development environment | required TC3 PLC library |
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TwinCAT from v3.1.4024.46 | Tc2_MPBus from 3.6.1.0 |