BELIMO_VRU_D3_BAC_EASY

BELIMO_VRU_D3_BAC_EASY (FB)

FUNCTION_BLOCK BELIMO_VRU_D3_BAC_EASY

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/or ‘stErrorCodeDev’ to the no-error state (on every rising edge)
Input	rSetpPerc	REAL	0.0	Setpoint in % ( 0.0 - 100.0 % ) depending on application
Input	eOverrideCon	BELIMO_VRU_D3_BAC_OVERRIDE_CON	BELIMO_VRU_D3_BAC_OVERRIDE_CON.NO_OVERRIDE	Volume flow control: setpoint - volume flow in % ( 0.0 - 100.0 % ) ( 0.0 % = Vmin, 100.0 % = Vmax ) Forced override of the air damper ( 0 = none )
Inout	ModbusClient	ModbusClientBase		Client of the device
Output	rVminM3H	REAL		Minimum value - volume flow in m3/h
Output	rVmaxM3H	REAL		Maximum value - volume flow in m3/h
Output	rVnomM3H	REAL		Nominal volume flow in m3/h
Output	rVolFlowM3H	REAL		Actual value of the volume flow in m3/h
Output	rSetpPercFb	REAL		Feedback of the setpoint in % ( 0.0 - 100.0 % )
Output	eCommandFb	BELIMO_VRU_D3_BAC_COMMAND		Feedback of the triggering of test functions (0 = none)
Output	eOverrideConFb	BELIMO_VRU_D3_BAC_OVERRIDE_CON		Feedback of the forced override of the damper (0 = none)
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	eCommand	BELIMO_VRU_D3_BAC_COMMAND	BELIMO_VRU_D3_BAC_COMMAND.NO_COMMAND	Triggering of test functions (0 = none)
Input Const	xSetpVolumeFlowMinMax	BOOL	FALSE	Triggering the transmission of the parameters ‘rSetpVolumeFlowMin’ and ‘rSetpVolumeFlowMax’ (on every rising edge)
Input Const	rSetpVolumeFlowMax	REAL	2000.0	Setpoint for the maximum volumetric flow in the selected volumetric flow unit (when rSetpVolFlowPerc = 100.0 %)
Input Const	rSetpVolumeFlowMin	REAL	500.0	Setpoint for the minimum volumetric flow in the selected volumetric flow unit (when rSetpVolFlowPerc = 0.0 %)
Input Const	tBusFailureTimeOut	TIME	TIME#10s0ms	Duration for the activation of the state 'communication failure' ( t = 0s = disabled, for t >= 10s ( minimum 10 s ) the parameter 'rSetpVolFlowPerc' must be transmitted cyclically with a time interval < t )
Input Const	rBusFailurePos	REAL	100.0	Position of the damper in case of a bus failure ( in %, 100% = open )
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'