MP_EnergyValveV4_Process

This function block is suitable for Energy Valve actuators EV..R2+.. (V4). 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;
rSetpoint                : LREAL;
nOverrideControl         : E_MP_EV_V4_OverrideControl;
nCommand                 : E_MP_EV_V4_Command;
nDataRead                : WORD := 16#FFFF;

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.

rSetpoint: setpoint in % (0...100).

nOverrideControl: override the setpoint with defined values (see E_MP_EV_V4_OverrideControl).

nCommand: command for service and test functions of the actuator (see E_MP_EV_V4_Command).

nDataRead: 0xFFFF - read all data; bit 0 - read relative position; bit 1 - read absolute position; bit 2 - read value sensor 1; bit 3 - read analog setpoint; bit 4 - read relative volume flow rate; bit 5 - read absolute volume flow rate; bit 6 - read glycol concentration; bit 7 - read temperature1 remote; bit 8 - read temperature2 integrated; bit 9 - read temperature delta; bit 10 - read relative power; bit 11 - read absolute cooling power; bit 12 - read absolute heating power; bit 13 - total volume; bit 14 - cooling energy; bit 15 - heating energy

VAR_OUTPUT

bBusy                    : BOOL;
bError                   : BOOL;
iErrorId                 : MP_Error;
strMP_Serial_Number      : MP_Serial_Number;
rSetpoint_Read           : LREAL;
nOverrideControl_Read    : E_MP_EV_V4_OverrideControl;
nCommand_Read            : E_MP_EV_V4_Command;
rRelativePosition        : LREAL;
rAbsolutePosition        : LREAL;
nSensor1Value            : DINT;
rSetpointAnalog          : LREAL;
rRelativeVolumetricFlow  : LREAL;
rAbsoluteVolumetricFlow  : LREAL;
rGlycolConcentration     : LREAL;
rTemperature1_Remote     : LREAL;
rTemperature2_Integrated : LREAL;
rDeltaTemperature        : LREAL;
rRelativePower           : 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).

rSetpoint_Read: setpoint in % (0...100).

nOverrideControl_Read: overridden setpoint (see E_MP_EV_V4_OverrideControl).

nCommand_Read: command (see E_MP_EV_V4_Command).

rRelativePosition: relative position in % (0...100). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.0 = TRUE).

rAbsolutePosition: absolute position in ° (0...96). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.1 = TRUE).

nSensor1Value: sensor 1 value in mV/Ohm (0...65535). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.2 = TRUE).

rSetpointAnalog: analog setpoint in % (0...100). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.3 = TRUE).

rRelativeVolumetricFlow: relative volume flow rate in % (0...100). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.4 = TRUE).

rAbsoluteVolumetricFlow: absolute volume flow rate in l/s (0...100). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.5 = TRUE).

rGlycolConcentration: glycol concentration in % (0...100). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.6 = TRUE).

rTemperature1_Remote: temperature1 remote in °C (-20...12). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.7 = TRUE).

rTemperature2_Integrated: temperature2 integrated in °C (-20...12). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.8 = TRUE).

rDeltaTemperature: temperature delta in K (0...14). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.9 = TRUE).

rRelativePower: relative power in % (0...100). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.10 = TRUE).

rAbsoluteCoolingPower: absolute cooling power in kW (0...21.5). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.11 = TRUE).

rAbsoluteHeatingPower: absolute heating power in kW (0...21.5). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.12 = TRUE).

rTotalVolume: total volume in m³ (0...214748.36). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.13 = TRUE).

nCoolingEnergy: cooling energy in kWh (0...21474836). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.14 = TRUE).

nHeatingEnergy: heating energy in kWh (0...21474836). A value of -1 means that the data is disabled (see VAR_INPUT nDataRead.15 = TRUE).