TROX_BM0

TROX_BM0 (FB)

FUNCTION_BLOCK TROX_BM0

Representation

InOut:

Scope	Name	Type	Initial	Comment
Input	xEn	BOOL	TRUE	Enable / disable of communication ( TRUE = enabled )
Input	byUnitId	BYTE	0	Address of the device
Input	xUpdateActual	BOOL	FALSE	Update of actual values (on every rising edge )
Input	xUpdateSetp	BOOL	FALSE	Update of setpoint values (on every rising edge )
Input	xResError	BOOL	FALSE	Reinitialization of the outputs ‘eErrorCodeCom’ and/or ‘stErrorCodeDev’ to the error-free state (on every rising edge )
Input	rSetpVolFlowPerc	REAL	0.0	Setpoint - volume flow in % ( 0.0 - 100.0 % ) ( 0.0 % = Vmin, 100.0 % = Vmax )
Input	xEnDevice	BOOL	FALSE	Enable / disable of the volume flow controller ( FALSE = forced control CLOSED, TRUE = forced control NONE )
Inout	ModbusClient	ModbusClientBase		Client of the device
Output	rVminUnit	REAL		Minimum value - volume flow in the selected volume flow unit
Output	rVmaxUnit	REAL		Maximum value - volume flow in the selected volume flow unit
Output	rVnomUnit	REAL		Nominal volume flow in the selected volume flow unit
Output	rDamperPosPerc	REAL		Absolute position of the damper in percent ( 0.0% = Closed, 100.0% = Open )
Output	rDamperPosDegree	REAL		Absolute position of the damper in degrees
Output	rVolFlowPerc	REAL		Actual value of the volume flow in percent of the nominal volume flow
Output	rVolFlowUnit	REAL		Actual value of the volume flow in the selected volume flow unit
Output	rSetpVolFlowPercFb	REAL		Feedback of the setpoint - volume flow in % ( 0.0 - 100.0 % ) ( 0.0 % = Vmin, 100.0 % = Vmax )
Output	eCommandFb	TROX_BM0_COMMAND		Feedback of the triggering of test functions ( 0 = none )
Output	eOverrideConFb	TROX_BM0_OVERRIDE_CON		Feedback of the forced override of the damper ( 0 = none )
Output	eActuatorType	TROX_BM0_ACTUATOR_TYPE		Type of the actuator
Output	eVolumeFlowUnitFb	TROX_BM0_VOLUMEFLOW_UNIT		Feedback of the unit for the absolute volume flow values ( 1 = m3/h )
Output	eSetpSourceFb	TROX_BM0_SETP_SOURCE		Feedback of the source for the setpoint ( 0 = Analog, 1 = Bus )
Output	eBusTermin	TROX_BM0_BUS_TERMINATION		State of the Modbus termination resistor ( 1 = Active )
Output	eSensorTypeFb	TROX_BM0_SENSOR_TYPE		Feedback of the type of the connected sensor ( 0 = none )
Output	sSerialNum	STRING		Serial number of the device
Output	wFirmwareVer	WORD		Firmware version of the device
Output	rSensorValue	REAL		Current actual value of the sensor in mV
Output	xSensorOffsetInDevice	BOOL		Indication whether sensor calibration must be performed in the device ( TRUE = calibration in device required, FALSE = calibration in FB required )
Output	rSetpAnalog	REAL		Setpoint in XXX.X % ( 0.0 - 100.0 % ) based on the sensor
Output	xAlarm	BOOL	FALSE	Collective fault ( TRUE = fault )
Output	xAlarmCom	BOOL	FALSE	Collective fault - communication ( TRUE = fault )
Output	eErrorCodeCom	ModbusErrorCode		Error code - communication ( 0 = no error )
Output	stErrorCodeDev	STRING		String with the numbers of the active device errors
Output	xBusy	BOOL		Communication indicator ( TRUE = communication )
Input Const	rSensorValueOffset	REAL	0.0	Constant measurement offset for the transmitted voltage actual value
Input Const	eSensorType	TROX_BM0_SENSOR_TYPE	TROX_BM0_SENSOR_TYPE.NO_SENSOR	Influence: Outputs: rSensorValue Type of the connected sensor ( 0 = none )
Input Const	eSetpSource	TROX_BM0_SETP_SOURCE	TROX_BM0_SETP_SOURCE.BUS	Source for the setpoint ( 0 = Analog, 1 = Bus )
Input Const	eControlMode	TROX_BM0_CONTROL_MODE	TROX_BM0_CONTROL_MODE.CLOSED_LOOP	Type of control / regulation ( 0 = Open Loop = Position control, 1 = Closed Loop = Volume flow control )
Input Const	eCommand	TROX_BM0_COMMAND	TROX_BM0_COMMAND.NO_COMMAND	Triggering of test functions ( 0 = none )
Input Const	eVolumeFlowUnit	TROX_BM0_VOLUMEFLOW_UNIT	TROX_BM0_VOLUMEFLOW_UNIT.M3_PER_H	Unit for the absolute volume flow values ( 1 = m3/h )
Input Const	xSetpVolumeFlowMinMax	BOOL	FALSE	Triggering of the transmission of the parameters ‘rSetpVolumeFlowMin’ or ‘rSetpVolumeFlowMax’ ( on every rising edge )
Input Const	rSetpVolumeFlowMax	REAL	180.0	Setpoint for the maximum volume flow in the selected volume flow unit ( when rSetpVolFlowPerc = 100.0 % )
Input Const	rSetpVolumeFlowMin	REAL	0.0	Setpoint for the minimum volume flow in the selected volume flow unit ( when rSetpVolFlowPerc = 0.0 % )
Input Const	tTimeOut	TIME	TIME#10s0ms	Duration for the activation of the state ‘communication error’ ( t = 0s = disabled, for t > 0s ( at least 10 s ) the parameter ‘rSetpVolFlowPerc’ must be transmitted cyclically with a time period < t )
Input Const	eBusFailureCommand	TROX_BM0_BUS_FAILURE	TROX_BM0_BUS_FAILURE.LAST_SETPOINT	Definition of the behavior in case of a bus failure ( 0 = last setpoint )
Input Const	tTimeUpdateSetp	TIME	TIME#45s0ms	Update interval for the processes influenced by the input ‘xUpdateSetp’
Input Const	tTimeUpdateActual	TIME	TIME#3s0ms	Update interval for the processes influenced by the input ‘xUpdateActual’