BELIMO_P_22RTX_1U00X_2_EASY

BELIMO_P_22RTX_1U00X_2_EASY (FB)

FUNCTION_BLOCK BELIMO_P_22RTX_1U00X_2_EASY

Representation

Short description

Control of device series P-22RT..-1U00..-2 from Belimo

Typical application: room operating unit in one zone

Guidelines - software creation

Supported Modbus function codes: 2, 3, 4, 6 and 16. For addressing, the address values are to be used, not the register addresses. Registers from 111 onward are persistent in the device and must not be written cyclically. Unused registers contain the value 65535 (unsigned)(FFFF - hex) or -1 (signed). Unused registers within the defined ranges may be read/written.

In the constellation eEcoBoostOnOffIconMode = BELIMO_P_22RTX_1U00X_2_FULL_ICON_MODE.OPERATION_MODE in ECO mode with the first rising edge at input xBoostIcon switched to On/Comfort mode. With the second rising edge, BOOST mode is then activated. When operated on the room operating unit, switching from ECO to BOOST takes place immediately.

Remedy: write address 30 with FC06 !!! with the desired value; do not write address 22 at the same time.

Measured values - calibration: Class 4

Interfaces

Inputs

Name	Data type	Value range	Initial value	Function
xEn	BOOL		TRUE	Enable / disable communication (TRUE = enable)
byUnitId	BYTE		0	Device address (0 .. 255)
xUpdateActual	BOOL		FALSE	Update of the actual values (on every rising edge)
xUpdateSetp	BOOL		FALSE	Update of setpoints (on every rising edge)
xUpdateConfig	BOOL		FALSE	Update of the configuration (on every rising edge) (read access)
xUpdateStates	BOOL		FALSE	Update of the states (on every rising edge)
xUpdateInfo	BOOL		FALSE	Update of the information (on every rising edge)
rSetpTempAbsNight	REAL		18.0	Absolute room setpoint temperature in night mode (unit depends on register address 122)
rSetpTempAbsBaseDay	REAL		22.0	Absolute base room setpoint temperature in day mode (unit depends on register address 120)
rSetpTempRelNight	REAL		0.0	Relative room setpoint temperature in night mode (unit depends on register address 122)
rSetpTempRelBaseDay	REAL		0.0	Relative base room setpoint temperature in day mode (unit depends on register address 122)
xMode	BOOL		FALSE	Input for operating mode/the On/Off icon (function depending on register addresses 139 - 141)
xEcoIcon	BOOL		FALSE	Input for operating mode/the Eco icon (function depending on register addresses 139 - 141)
xBoostIcon	BOOL		FALSE	Input for operating mode/the Boost icon (function depending on register addresses 139 - 141)
eSetpFanLevel	BELIMO_P_22RTX_1U00X_2_FAN_LEVEL		BELIMO_P_22RTX_1U00X_2_FAN_LEVEL.STAGE_0	Set fan stage
eIconsHeatCool	BELIMO_P_22RTX_1U00X_2_MODE_HEAT_COOL		BELIMO_P_22RTX_1U00X_2_MODE_HEAT_COOL.NONE	Selection of the icon display for heating or cooling operation
xDsplIconWarn	BOOL		FALSE	Input for displaying the warning icon (TRUE = enabled)
xDsplIconWind	BOOL		FALSE	Input for displaying the window icon (TRUE = enabled)
xEnLocalAdj	BOOL		FALSE	Input for displaying the controls on the room operating unit (TRUE = display)
xResError	BOOL		FALSE	Input for resetting the output eErrorCodeCom (on every rising edge)

Outputs

Name	Data type	Value range	Initial value	Function
eOperationMode	BELIMO_P_22RTX_1U00X_2_OPERATION_MODE			Display of the current operating mode on the room operating unit (register address 30)
eEcoBoostOnOffIconMode	BELIMO_P_22RTX_1U00X_2_ICON_MODE			Display of the current operating mode
xModeDev	BOOL			Operating mode of zone control on the room operating unit (FALSE = night mode, TRUE = day mode)
xButtonPresence	BOOL			Actuation of the presence button (pulse with duration tTimeButtonPulse) (RBG and/or VISU)
rSetpTempAbs	REAL			Current absolute setpoint temperature depending on the parameter eTemperatureUnit (e.g. +23.5 degrees Celsius) (register address 34) (unit depends on register address 120)
rOffset	REAL			Current difference between rSetpTempAbs and rAdjCenterSetpTemp (range: +/- rAdjOffsetSetpTemp) in day mode (unit depends on register address 120)
rSetpTempRel	REAL			Current relative setpoint temperature depending on the parameter eOffsetUnit (e.g. -2.0 Kelvin) (range: +/- rAdjOffsetSetpTemp) (register address 36) (unit depends on register address 122)
rTemp	REAL			Room temperature (unit depends on register address 120)
rRelHumidity	REAL			Relative room humidity in percent
rCO2	REAL			CO2 concentration (ppm)
eCO2Status	BELIMO_P_22RTX_1U00X_2_CO2_STATUS			Current status of the CO2 actual-value monitoring
xSensorOffsetInDevice	BOOL			Indication whether the sensor calibration must be performed in the device (TRUE = calibration required in the device, FALSE = calibration required in the FB)
rDewPointTemp	REAL			Dew point temperature (unit depends on register address 120 in degrees Celsius or Fahrenheit)
eFanLevel	BELIMO_P_22RTX_1U00X_2_FAN_LEVEL			Current fan stage depending on the parameter eFanLevelConfig (register address 22)
xDI1	BOOL			State of digital input 1 depending on the parameter eDI1OutpMode (RAW: FALSE = open, TRUE = closed with +24VDC, PULSE: pulse with duration tTimeDIPulse on every rising edge at input DI1)
xEnLocalAdjFb	BOOL			Indication whether local operation is possible (TRUE = local operation possible) — feedback
eBusTermin	BELIMO_P_22RTX_1U00X_2_BUS_TERMINATION			Status of the Modbus termination resistor (Active = Enabled)
sSerialNum	STRING			Serial number of the device
wFirmwareVer	WORD			Firmware version of the device
xAlarmCom	BOOL			Collective fault - communication (TRUE = fault)
eErrorCodeCom	ModbusErrorCode			Error code - communication (0 = no error)
eErrorCodeDev	SPLUSS_ERROR_CODE_TYPE_2			Error code - device (0 = no error)
xBusy	BOOL			Communication display (TRUE = communication)

Inputs and outputs

Name	Data type	Value range	Initial value	Function
ModbusClient	ModbusClientBase			Client of the device

General information on setpoints / parameters (addresses 110 - 149)

The following setpoints / parameters (addresses 110 - 149) are common to the function blocks with index _EASY and _FULL . In the function block with index _FULL additional setpoints / parameters can also be defined, which are shown in the table after next. These additional setpoints / parameters are only read in the function block with index _EASY and stored in internal variables. These setpoints / parameters are defined externally there, e.g. using the 'Belimo Assistant' app.

Setpoints / parameters EASY / FULL

Name	Data type	Value range	Initial value	Address	Function
tTimeUpdateActual	TIME		T#3s		Update interval for the processes influenced by the input xUpdateActual can be influenced (0 = no automatic update, > 0 cyclic update)
tTimeUpdateSetp	TIME		T#0s		Update interval for the processes influenced by the input xUpdateSetp can be influenced (0 = no automatic update, > 0 cyclic update)
tTimeUpdateConfig	TIME		T#0s		Update interval for the processes influenced by the input xUpdateConfig can be influenced (0 = no automatic update, > 0 cyclic update)
tTimeUpdateStates	TIME		T#500ms		Update interval for the processes influenced by the input xUpdateStates can be influenced (0 = no automatic update, > 0 cyclic update)
tTimeUpdateInfo	TIME		T#0s		Update interval for the processes influenced by the input xUpdateInfo can be influenced (0 = no automatic update, > 0 cyclic update)
eDI1OutpMode	BELIMO_P_22RTX_1U00X_2_DIGITAL_INPUT_OUTP_MODE		BELIMO_P_22RTX_1U00X_2_DIGITAL_INPUT_OUTP_MODE.RAW		Operating mode of the output xDI1 (RAW, PULSE)
tTimeDIPulse	TIME		T#1s		Duration of the pulse at the output xDI1, if a rising edge is detected at the digital input (eDI1OutpMode = BELIMO_P_22RTX_1U00X_2_FULL_DIGITAL_INPUT_OUTP_MODE.PULSE)
eFanStageControlMode	BELIMO_P_22RTX_1U00X_2_FAN_STAGES_CONTROL_MODE		BELIMO_P_22RTX_1U00X_2_FAN_STAGES_CONTROL_MODE.AUTOMATIC_STAGES_CONTROL	31	Definition of the operating mode for controlling the fan stages
xVisuPresence	BOOL		FALSE		Actuation of the presence button in the visualization (affects the output xButtonPresence)
tTimeButtonPulse	TIME		T#1s		Duration of the pulse at the output 'xButton Presence'

Additional setpoints / parameters FULL

Name	Data type	Value range	Initial value	Address	Function
rTempOffset	REAL	+/- 15.0 K	0.0	110	Room temperature offset (for calibration of the temperature sensor) in K
rHumidityOffset	REAL	+/- 20.0 %	0.0	111	Room humidity offset (for calibration of the humidity sensor) in percent
rCO2Offset	REAL	+/- 500 ppm	0.0	112	Offset of the CO2 sensor (for calibration of the CO2 sensor) in ppm
rCO2_LED_ThresholdGreenYellow	REAL	600.0 - 1249.0 ppm, integer values only	1000.0	115	Threshold for switching the LED color from green to yellow
rCO2_LED_ThresholdYellowRed	REAL	1250.0 - 2000.0 ppm, integer values only	1500.0	116	Threshold for switching the LED color from yellow to red
xCO2_LED_Enable	BOOL		TRUE	117	Enable / disable the CO2 LED (TRUE = enable)
eTemperatureUnit	BELIMO_P_22RTX_1U00X_2_UNIT_TEMPERATURE		BELIMO_P_22RTX_1U00X_2_UNIT_TEMPERATURE.DEGREES_CELSIUS	120	Definition of the unit for the temperature (influence: rTemp (address 1), rDewPointTemp (address 5) and rSetpTemp (address 34))
eTemperatureUnitDisplay	BELIMO_P_22RTX_1U00X_2_UNIT_TEMPERATURE_DISPLAY		BELIMO_P_22RTX_1U00X_2_UNIT_TEMPERATURE_DISPLAY.DEGREES_CELSIUS	121	Definition of the unit for the temperature display on the display (influence: display)
eOffsetUnit	BELIMO_P_22RTX_1U00X_2_UNIT_TEMPERATURE		BELIMO_P_22RTX_1U00X_2_UNIT_TEMPERATURE.DEGREES_CELSIUS	122	Definition of the unit for the relative setpoint temperature (influence: rSetpTempRel (address 36))
eColorScheme	BELIMO_P_22RTX_1U00X_2_COLOR_SCHEME		BELIMO_P_22RTX_1U00X_2_COLOR_SCHEME.WHITE_BACKGROUND	130	Definition of the color scheme of the display
eDsplIconsHeatCool	BELIMO_P_22RTX_1U00X_2_SYMBOL_VISIBILITY		BELIMO_P_22RTX_1U00X_2_SYMBOL_VISIBILITY.INVISIBLE	134	Display of the visibility of the icons for heating and cooling operation
eWarningIconFunct	BELIMO_P_22RTX_1U00X_2_WARNING_ICON_FUNCTION		BELIMO_P_22RTX_1U00X_2_WARNING_ICON_FUNCTION.DEVICE_ERROR_STATUS	135	Definition of the function of the icon Warning
eWindowIconFunct	BELIMO_P_22RTX_1U00X_2_WINDOW_ICON_FUNCTION		BELIMO_P_22RTX_1U00X_2_WINDOW_ICON_FUNCTION.INPUT_xDsplIconWind	136	Definition of the function of the icon Window
eEcoBoostOnOffIconMode	BELIMO_P_22RTX_1U00X_2_ICON_MODE		BELIMO_P_22RTX_1U00X_2_ICON_MODE.PRESENCE_BUTTON	139 - 141	Central definition of the icon functions Eco, Boost and OnOff
tBoostModeDuration	TIME		T#900s	142	Duration of the operating mode Boost
eSetpTempMode	BELIMO_P_22RTX_1U00X_2_SETP_TEMP_MODE		BELIMO_P_22RTX_1U00X_2_SETP_TEMP_MODE.ABSOLUTE_SETPOINT	145	Definition of the operating mode of the setpoint display (absolute / relative)
rAdjCenterSetpTempAbs	REAL	+15.0 … +35.0 degrees Celsius	22.0	146	Definition of the absolute base setpoint temperature (center value) for adjusting the setpoint temperature (+15.00 - 35.00 degrees Celsius) (automatic, internal conversion to other temperature units in the RBG) Affects the absolute setpoint temperature.
rAdjOffsetSetpTempAbs	REAL	-5.0 … +5.0 Kelvin	3.0	147	Definition of the adjustment range around the absolute base setpoint temperature (center value) (+/- 5.0 K) (automatic, internal conversion to other temperature units in the RBG). Affects the adjustment ranges of the absolute and relative setpoint temperature
eFanLevelConfig	BELIMO_P_22RTX_1U00X_2_FAN_LEVEL_CONFIG		BELIMO_P_22RTX_1U00X_2_FAN_LEVEL_CONFIG.SEVEN_STAGES	148	Definition of the number of fan stages
eFanControlMode	BELIMO_P_22RTX_1U00X_2_FAN_CONTROL_MODE		BELIMO_P_22RTX_1U00X_2_FAN_CONTROL_MODE.MANUAL_MODE_ONLY	1498	Definition of the operating mode for controlling the fan

Function description

General

This function block controls room operating units of the device series P-22RT..-1U00..-2 from Belimo via Modbus communication. Configuration (addresses 110 - 149) is carried out in the function block with index _FULL internally, in the function block with index _EASY externally.

Operating modes - room operating unit (address 30) — outputs eOperationMode and xModeDev

Four operating modes are distinguished:

0: Off/Protection (xModeDev = FALSE) 1: On/Comfort (xModeDev = TRUE) 2: Eco Mode (xModeDev = TRUE) 3: Boost Mode (xModeDev = TRUE)

Operating modes 2 and 3 can only be selected in addition to operating mode 1. Operating mode 3 is active for a limited time and requires enablement of the highest fan stage for correct operation. The operating modes are automatically determined depending on the operating mode (see below).

Central definition of the functions of the icons / controls OnOff, Eco and Boost (operating modes)

A total of four operating modes are distinguished, which are defined via addresses 139 - 141: (FULL: parameter eEcoBoostOnOffIconMode, EASY: define the contents of addresses 139 - 141 externally according to the following list.)

Operating mode INVISIBLE

Visibility	Operability	Function
Eco: NO	Eco: NO	Icons not visible or operable
Boost: NO	Boost: NO	Icons not visible or operable
OnOff: NO	OnOff: NO	Icons not visible or operable

Operating mode DISPLAY_MODE

Visibility	Operability	Function
Eco: YES	Eco: NO	Display of the Eco and OnOff modes
Boost: NO	Boost: NO	Display of the Eco and OnOff modes
OnOff: YES	OnOff: NO	Display of the Eco and OnOff modes

Operating mode OPERATION_MODE

Visibility	Operability	Function
Eco: YES	Eco: YES	Switching of the functions on the RBG as well as through rising edges at the icon inputs
Boost: YES	Boost: YES	Switching of the functions on the RBG as well as through rising edges at the icon inputs
OnOff: YES	OnOff: YES	Switching of the functions on the RBG as well as through rising edges at the icon inputs

Operating mode PRESENCE_BUTTON

Visibility	Operability	Function
Eco: NO	Eco: NO	Usage time extension with external HVAC.Button1 FB
Boost: NO	Boost: NO	Usage time extension with external HVAC.Button1 FB
OnOff: YES	OnOff: YES	Usage time extension with external HVAC.Button1 FB

In DISPLAY mode, the operating modes Eco Mode and On/Comfort are defined by the inputs xEcoIcon and xMode (TRUE = On). If none of the inputs is active, operating mode Off/Protection is selected automatically.

In OPERATION mode, the operating modes ECO, Boost and OnOff are defined by the corresponding inputs (rising edges) and by operation on the room operating unit.

In PRESENCE_BUTTON mode, the operating modes Off/Protection and On/Comfort are defined by the input xMode (rising edges: On / Comfort, falling edge: Off/Protection) and in parallel by operation on the room operating unit. With every change from night mode to day mode and vice versa triggered by the room operating unit, an impulse of duration xButtonPresence is generated at output tTimeButtonPulse .

Day mode / night mode (output xModeDev)

At output xModeDev the current state of day mode on the room operating unit is displayed (TRUE = day mode).

Room setpoint temperatures

The room setpoint temperatures are defined in different ways depending on the parameter eSetpTempMode (address 145):

1. Absolute setpoint (e.g. +23.5 degrees Celsius) (index Abs) (inputs rSetpTempAbsNight, rSetpTempAbsBaseDay) (output rSetpTempAbs)
2. Relative setpoint (e.g. +1.0 Kelvin) (index Rel) (inputs rSetpTempRelNight, rSetpTempRelBaseDay) (output rSetpTempRel)

Changes to the associated inputs are transferred immediately in the corresponding state, otherwise at the next transition to this state. Example: A change at input rSetpTempAbsNight is transferred and becomes effective immediately in night mode. Example: A change at input rSetpTempBaseDay does not take effect immediately in night mode, but only at the next transition to day mode.

Changes to the parameters rAdjCenterSetpTempAbs (address 146) or rAdjOffsetSetpTempAbs (address 147) are transferred immediately in the appropriate state, otherwise with a delay. (FULL). Changes to addresses 146 and 147 are recorded after the configuration has been read again and transferred accordingly (EASY). Changes to the content of address 146 affect only the absolute setpoint temperature; changes to the content of address 147 affect the absolute and relative setpoint temperature.

The current values at inputs rSetpTempAbsNight and rSetpTempAbsBaseDay are to be specified depending on the parameter eTemperatureUnit (address 120). At output output rSetpTempAbs the current setpoint value is then available in the selected unit. The current values at inputs rSetpTempRelNight and rSetpTempRelBaseDay are to be specified depending on the parameter eOffsetUnit (address 122). At output output rSetpTempRel the current setpoint value is then available in the selected unit.

Night mode - room setpoint temperature

When switching from day mode to night mode, the state at input rSetpTempAbsNight is transferred to the room operating unit and displayed there (eSetpTempMode = absolute setpoint temperature). When switching from day mode to night mode, the state at input rSetpTempRelNight is transferred to the room operating unit and displayed there (eSetpTempMode = relative setpoint temperature). Any change of state at input rSetpTempXXXNight is transferred to the room operating unit during night mode.

Day mode - room setpoint temperature

Case 1 - There is not yet a valid room setpoint temperature in day mode

When switching from night mode to day mode, the state at input rSetpTempAbsBaseDay is transferred to the room operating unit and displayed there. On the room operating unit, adjustment is possible in the symmetrical range defined by address 147. The step size is 0.5K.

Case 2 - There is already a valid room setpoint temperature in day mode

When switching from night mode to day mode, the previous valid room setpoint temperature is transferred to the room operating unit and displayed there. On the room operating unit, adjustment is possible in the symmetrical range defined by address 147. The step size is 0.5K.

Output xDI1

At output xDI1 the state at input DI1 of the room operating unit is available in different ways (parameter xDI1OutpMode).

Operating modes

RAW

The output immediately adopts the state at input DI1 (FALSE: contact open, TRUE: contact closed with +24VDC)

PULSE

Each rising edge at input DI1 triggers a pulse of duration tTimeDIPulse (default: 1s) at the corresponding output xDI1.

Specification / display of the fan stage

The preselection of the number of fan stages is made via the parameter eFanLevelConfig (address 148). In Boost Mode, the maximum fan stage is specified (independent of input eSetpFanLevel). The fan stage is selected and transferred via input eSetpFanLevel within the permissible limits. The current fan stage is output via output eFanLevel within the permissible limits. The display of the current fan stage and the setting options are additionally defined by the parameters eFanStagesControlMode (address 31) eFanControlMode (address 149), eFanLevelConfig (address 148) and xDsplFanStages (address 138).

Assessment of the current CO2 content using a multicolor LED

The assessment of the current CO2 content is performed using a multicolor LED (off / green / yellow / red) and output eCO2Status . The threshold for the transition of the LED color from green to yellow is defined by the parameter rCO2_LED_ThresholdwGreenYellow (address 115). The threshold for the transition of the LED color from yellow to red is defined by the parameter rCO2_LED_ThresholdYellowRed (address 116). The assessment and the LED display can be defined by the parameter xCO2_LED_Enable (address 117) (TRUE = display).

Display of symbols / actual values

The display of the desired symbols in the room operating unit display is triggered by the TRUE state of the associated inputs. These inputs are identified with the index Dspl . Example: xDsplTemp = TRUE causes the current room temperature to be displayed on the screen.

Display of faults

Faults are displayed at the collective output xAlarm (= TRUE). It includes communication faults (time delay: gc_Parameters.gc_tOnDelayxAlarmCom, default = 60s) and device faults (direct). The collective error message, the collective warning message and the CO2 level that is too high (LED = red) are output here as device fault. At output eErrorCodeCom an explanatory text for the cause is available in the event of a communication error. The cause of the last communication error is always displayed there.

Codesys

InOut:

Scope	Name	Type	Initial	Comment
Input	xEn	BOOL	TRUE	Enable / disable communication (TRUE = enable)
Input	byUnitId	BYTE	0	Device address (1 .. 247) (via Belimo Assistant app via NFC)
Input	xUpdateActual	BOOL	FALSE	Update of actual values (on every rising edge )
Input	xUpdateSetp	BOOL	FALSE	Update of setpoints (on every rising edge )
Input	xUpdateConfig	BOOL	FALSE	Update of the configuration (on every rising edge) (read access)
Input	xUpdateStates	BOOL	FALSE	Update of the states (on every rising edge)
Input	xUpdateInfo	BOOL	FALSE	Update of the information (on every rising edge)
Input	rSetpTempAbsNight	REAL	18.0	Absolute setpoint temperature - night mode (unit depending on eTemperatureUnit)
Input	rSetpTempAbsBaseDay	REAL	22.0	Absolute base setpoint temperature - day mode (unit depending on eTemperatureUnit)
Input	rSetpTempRelNight	REAL	0.0	Relative setpoint temperature - night mode (unit depending on eTemperatureUnit)
Input	rSetpTempRelBaseDay	REAL	0.0	Relative base setpoint temperature - day mode (unit depending on eTemperatureUnit)
Input	xMode	BOOL	FALSE	Display of the icon OnOff (eOnOffIconMode = BELIMO_P_22RTX_1U00X_2_FULL_ICON_MODE.DISPLAY_MODE)
Input	xEcoIcon	BOOL	FALSE	Display of the icon Eco (eEcoIconMode = BELIMO_P_22RTX_1U00X_2_FULL_ICON_MODE.DISPLAY_MODE)
Input	xBoostIcon	BOOL	FALSE	Operation of the icon Boost (eBoostIconMode = BELIMO_P_22RTX_1U00X_2_FULL_ICON_MODE.OPERATION_MODE)
Input	eSetpFanLevel	BELIMO_P_22RTX_1U00X_2_FAN_LEVEL	BELIMO_P_22RTX_1U00X_2_FAN_LEVEL.STAGE_0	(each rising edge toggles Boost mode) Setpoint - current fan stage depending on the parameter eFanLevelConfig Depending on the parameters eFanStagesControlMode (register 31 - setpoints_0) and eFanControlMode (register 149 - configuration_0), the following operating options are available: Register 31 = Automatic // Register 149 = Hybrid: If stage 0 is selected on the RBG, the display of the current stage is deactivated and an automatic symbol is shown. If a stage greater than 0 is selected on the RBG, the display of the current stage is activated and the automatic symbol is hidden. Stage selection is possible on the RBG and via register 22. In all other constellations, the following applies: The display of the current stage is active, it can be changed on the RBG and via register 22, and the last change made remains in effect.
Input	eIconsHeatCool	BELIMO_P_22RTX_1U00X_2_MODE_HEAT_COOL	BELIMO_P_22RTX_1U00X_2_MODE_HEAT_COOL.NONE	0.0 = stage 0 1.0 = stage 1 2.0 = stage 2 3.0 = stage 3 4.0 = stage 4 5.0 = stage 5 6.0 = stage 6 Selection of heating or cooling operation
Input	xDsplIconWarn	BOOL	FALSE	Display of the symbol Warning (TRUE = display)
Input	xDsplIconWind	BOOL	FALSE	Display of the symbol Window (TRUE = display)
Input	xEnLocalAdj	BOOL	TRUE	Definition of whether local operation is possible (TRUE = enable)
Input	xResError	BOOL	FALSE	Reinitialization of the output eErrorCodeCom (on every rising edge)
Inout	ModbusClient	ModbusClientBase		Client of the device
Output	eOperationMode	BELIMO_P_22RTX_1U00X_2_OPERATION_MODE		Current operating mode 0 = OFF_PROTECTION: night mode 1 = ON_COMFORT: day mode 2 = ECO_MODE: day mode — eco mode 3 = BOOST_MODE: day mode — boost mode
Output	eEcoBoostOnOffIconMode	BELIMO_P_22RTX_1U00X_2_ICON_MODE		Central definition of the icon functions Eco, Boost and OnOff INVISIBLE (icons not visible or operable) > Visibility Operability on the RBG Eco: no no Boost: no no OnOff: no no DISPLAY_MODE (display of the Eco and OnOff modes) > Visibility Operability on the RBG Eco: yes no Boost: no no OnOff: yes no OPERATION_MODE (switching of the functions on the RBG as well as by rising edges at the icon inputs) > Visibility Operability on the RBG Eco: yes yes Boost: yes yes OnOff: yes yes PRESENCE_BUTTON (usage time extension with external HVAC.Button1 FB) > Visibility Operability on the RBG Eco: no no Boost: no no OnOff: yes yes Address 139 Address 140 Address 141 Operating mode 0 0 0 INVISIBLE 1 0 1 DISPLAY_MODE 2 1 2 OPERATION_MODE 0 0 2 PRESENCE_BUTTON
Output	xModeDev	BOOL		Operating mode of zone control from the device (FALSE = night mode, TRUE = day mode)
Output	xButtonPresence	BOOL		Actuation of the presence button (pulse with duration tTimeButtonPulse) (RBG and/or VISU)
Output	rSetpTempAbs	REAL		Current absolute setpoint temperature depending on the parameter eTemperatureUnit (e.g. +23.5 degrees Celsius) ( register 34)
Output	rOffset	REAL		Current difference between rSetpTempAbs and rAdjCenterSetpTemp (range: +/- rAdjOffsetSetpTemp) in day mode
Output	rSetpTempRel	REAL		Current relative setpoint temperature depending on the parameter eOffsetUnit (e.g. -2.0 Kelvin) (range: +/- rAdjOffsetSetpTemp) (register 36)
Output	rTemp	REAL		Current room temperature depending on the parameter eUnitTemperature
Output	rRelHumidity	REAL		Relative room humidity in percent
Output	rCO2	REAL		Current CO2 level in ppm
Output	eCO2Status	BELIMO_P_22RTX_1U00X_2_CO2_STATUS		Current status of the CO2 actual-value monitoring
Output	xSensorOffsetInDevice	BOOL		Indication whether the sensor calibration must be carried out in the device (TRUE = calibration required in the device, FALSE = calibration required in the FB)
Output	rDewPointTemp	REAL		Dew point temperature in degrees Celsius or Fahrenheit
Output	eFanLevel	BELIMO_P_22RTX_1U00X_2_FAN_LEVEL		Current fan stage depending on the parameter eFanLevelConfig
Output	xDI1	BOOL		State of digital input 1 depending on the parameter eDI1OutpMode:
Output	xEnLocalAdjFb	BOOL		Indication whether local operation is possible (TRUE = local operation possible) — feedback
Output	eBusTermin	BELIMO_P_22RTX_1U00X_2_BUS_TERMINATION		Status of the Modbus termination resistor (Active = Enabled)
Output	sSerialNum	STRING		Serial number of the device
Output	wFirmwareVer	WORD		Firmware version of the device
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	xBusy	BOOL		Communication display (TRUE = communication)
Input Const	tTimeButtonPulse	TIME	TIME#1s0ms	Duration of the pulse at the output 'xButton Presence'
Input Const	xVisuPresence	BOOL	FALSE	Actuation of the presence button in the visualization
Input Const	eFanStageControlMode	BELIMO_P_22RTX_1U00X_2_FAN_STAGES_CONTROL_MODE	BELIMO_P_22RTX_1U00X_2_FAN_STAGES_CONTROL_MODE.AUTOMATIC_STAGES_CONTROL	Definition of the operating mode for controlling the fan stages of the fan
Input Const	tTimeDIPulse	TIME	TIME#1s0ms	Duration of the pulse at the output xDI1, if a rising edge is detected at the digital input ( eDI1OutpMode = BELIMO_P_22RTX_1U00X_2_FULL_DIGITAL_INPUT_OUTP_MODE.PULSE)