TROX_XM0

TROX_XM0 (FB)

FUNCTION_BLOCK TROX_XM0

InOut:

Scope	Name	Type	Initial	Comment
Input	xEn	BOOL	TRUE	Enable / disable 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 'xErrorCodeDev' to the error-free state (on each rising edge)
Input	rSetpVolFlowPerc	REAL	0.0	Setpoint - volumetric flow in % (0.0 - 100.0 %) (0.0 % = Vmin, 100.0 % = Vmax)
Inout	ModbusClient	ModbusClientBase		Client of the device
Output	rVnomUnit	REAL		Nominal volumetric flow in the selected volumetric flow unit
Output	rVminUnit	REAL		Minimum value - volumetric flow in the selected volumetric flow unit
Output	rVmaxUnit	REAL		Maximum value - volumetric flow in the selected volumetric 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 volumetric flow in percent of the nominal volumetric flow
Output	rVolFlowUnit	REAL		Actual value of the volumetric flow in the selected volumetric flow unit
Output	eSetpSourceFb	TROX_XM0_SETP_SOURCE		Feedback of the source for the setpoint (2 = bus)
Output	rSensorValue	REAL		Current actual value of the sensor in mV
Output	xSensorOffsetInDevice	BOOL		Indicator whether the calibration of the sensors must be performed in the device (TRUE = calibration in device required, FALSE = calibration in FB required)
Output	xAlarm	BOOL	FALSE	General fault ( TRUE = fault )
Output	xAlarmCom	BOOL	FALSE	General 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	eSetpSource	TROX_XM0_SETP_SOURCE	TROX_XM0_SETP_SOURCE.BUS_IN_BUS_OUT	Influence: Outputs: rSensorValue Source for the setpoint (2 = bus)
Input Const	eOverrideCon	TROX_XM0_OVERRIDE_CON	TROX_XM0_OVERRIDE_CON.NO_OVERRIDE	Forced override of the air damper (0 = none)
Input Const	eCommand	TROX_XM0_COMMAND	TROX_XM0_COMMAND.NO_COMMAND	Triggering of test functions (0 = none)
Input Const	eVolumeFlowUnit	TROX_XM0_VOLUMEFLOW_UNIT	TROX_XM0_VOLUMEFLOW_UNIT.M3_PER_H	Unit for the absolute volumetric flow values (1 = m3/h)
Input Const	xSetpVolumeFlowMinMax	BOOL	FALSE	Triggering the transmission of the parameters ‘rSetpVolumeFlowMin’ and ‘rSetpVolumeFlowMax’ (on every rising edge)
Input Const	rSetpVolumeFlowMax	REAL	300.0	Setpoint for the maximum volumetric flow in the selected volumetric flow unit (when rSetpVolFlowPerc = 100.0 %)
Input Const	rSetpVolumeFlowMin	REAL	100.0	Setpoint for the minimum volumetric flow in the selected volumetric flow unit (when rSetpVolFlowPerc = 0.0 %)
Input Const	tTimeOut	TIME	TIME#10s0ms	Duration for activating the state 'communication failure'
Input Const	eBusFailureCommand	TROX_XM0_BUS_FAILURE	TROX_XM0_BUS_FAILURE.NO_FAILURE	Specification of behavior in case of a bus failure (0 = no action)
Input Const	tTimeUpdateSetp	TIME	TIME#45s0ms	Update interval for operations influenced by the input 'xUpdateSetp'
Input Const	tTimeUpdateActual	TIME	TIME#3s0ms	Update interval for operations influenced by the input 'xUpdateActual'