OPPERMANN_HT_MOD_I_XXX

OPPERMANN_HT_MOD_I_XXX (FB)

FUNCTION_BLOCK OPPERMANN_HT_MOD_I_XXX

General

This is a temperature-humidity transmitter for ventilation ducts and for mounting outdoors

XXX = 150: 150mm XXX = 400: 400mm

The configuration of the Modbus interface and other parameters is performed via NFC and app when a display is present (variant 1) The configuration of the Modbus interface and other parameters is performed via buttons when a display is present (variant 2)

The measurement value offsets can each be set in 10 steps using a rotary switch on the device. A termination resistor (120 Ohm) can be enabled/disabled.

The Modbus interface is parameterized as follows without further settings:

RTU 9600 baud 8 data bits even parity 1 stop bit device address = 1

InOut:

Scope	Name	Type	Initial	Comment
Input	xEn	BOOL	TRUE	Enable / disable communication ( TRUE = enabled )
Input	byUnitId	BYTE	0	Device address (1 .. 127)
Input	xUpdateActual	BOOL	FALSE	Update of actual values (on each rising edge ) (Range: operation)
Input	xResError	BOOL	FALSE	Reinitialization of the output 'eErrorCodeCom' (on each rising edge)
Inout	ModbusClient	ModbusClientBase		Client of the device
Output	rTempCelsius	REAL		Temperature in XX.X degrees Celsius
Output	rTempFahrenheit	REAL		Temperature in XX.X degrees Fahrenheit
Output	rRelHumidity	REAL		Relative humidity in XXX.X percent
Output	rDewPointCelsius	REAL		Dew point temperature in XX.X degrees Celsius
Output	rDewPointFahrenheit	REAL		Dew point temperature in XX.X degrees Fahrenheit
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		General fault ( TRUE = fault )
Output	xAlarmCom	BOOL		General fault - communication ( TRUE = fault )
Output	eErrorCodeCom	ModbusErrorCode		Error code - communication ( 0 = no error )
Output	xBusy	BOOL		Communication indicator ( TRUE = communication )
Input Const	tTimeUpdateActual	TIME	TIME#3s0ms	Update interval for operations influenced by the input 'xUpdateActual'