Function Blocks ¶ PoolExtender AsyncProperty (Folder) GetInstancePointer (Method) RSMClass (FunctionBlock) Extend (Method) Reset (Method)

Function Blocks ¶ Actuator Fan3Stage (FunctionBlock) Fan3StageState (Enum) HVAC_Coil (FunctionBlock) Functionality SetError (Method) HVAC_RotaryHeatExchanger (FunctionBlock) Functionality optional cleaning operation malfunction detection malfunction locking SetError (Method) HeatCool2Linear (FunctionBlock) IActuatorContinuous (Interface) DateTimeProvider (Property) Enable (Property) ErrorIdOut (Property) ErrorOut (Property) Reset (Property) Setpoint (Property) IActuatorOnOff (Interface) DateTimeProvider (Property) ErrorIdOut (Property) ErrorOut (Property) IsOn (Property) RequestOn (Property) Reset (Property) IValveContinuous (Interface) PumpOnOff (FunctionBlock) Application example Device examples Functionality on / off delay blocking protection command execution monitoring malfunction detection malfunction locking DateTimeProvider (Property) ErrorIdOut (Property) ErrorOut (Property) IsOn (Property) RequestOn (Property) Reset (Property) ValveContinuous (FunctionBlock) Functionality Blocking protection DateTimeProvider (Property) Enable (Property) ErrorIdOut (Property) ErrorOut (Property) Reset (Property) Setpoint (Property) ValveSixWay (FunctionBlock) Application example Device examples Functionality ValveThermo (FunctionBlock) Application example Device examples Functionality Normally closed valves and warmup: Blocking protection DateTimeProvider (Property) Enable (Property) ErrorIdOut (Property) ErrorOut (Property) Reset (Property) Setpoint (Property) ValveThermoWarmupState (Enum) WindowActuator (FunctionBlock) Application example Device examples Functionality WindowActuatorState (Enum) Aggregates Examples ExampleFancoil3StageAggregate (FunctionBlock) Fancoil3Stage (FunctionBlock) Functionality Control of fan speed dependent on valve position or control deviation FancoilContinuous (FunctionBlock) Application example Device examples Why does CODESYS Building Automation library contain a fan coil unit control strategy, even if some fan coil units come with integrated controller? Functionality Characteristic curve of fan speed Assemblies FourToTwoPipes (FunctionBlock) Application example Functionality Control CommandExecutionMonitoring (FunctionBlock) CommandVariable (FunctionBlock) HVAC_AntiFreezeControlMonitor (FunctionBlock) Application example Functionality HVAC_AntiFreezeControlSensor (FunctionBlock) Application example Functionality HVAC_AntiFreezeControlStartup (FunctionBlock) Application example Functionality RedundantPlantControl8 (FunctionBlock) SequenceControl (FB) Sequence combinations: Sequence relations: Control algorithm inputs: Relation between setpoints sequences: Other control characteristics: Integrator dynamics Reset “Anti windup” (integration limit) “Soft set” SequenceControlSequences (Enum) SequenceSwitch (FunctionBlock) Examples ExampleAirConditioning1 (FB) Air types Sequence control heater coil / cooler coil Hints Caveats ExampleAirConditioning2 (FB) Air types Sequence control damper / heater coil / cooler coil Recirculation air admixing and energy selection Minimum outdoor air ratio Water side anti-freeze for heater coil Air side anti-freeze Hints Caveats ExampleHeating (FunctionBlock) Heating circuit operation Night time setpoint reduction vs. switching off heating circuit operation Economy mode Optional anti-freeze Caveats ExampleHotWater (FunctionBlock) 2 point control of boiler temperature Legionella prevention Optional unload protection Caveats ExampleRoomAutomation (FB) Air types Presence controlled energy level Night cooling Energy lock Sommer compensation Fast heat / cool Window alarm Manual fan control Hints Caveats ExampleVariantsRoomControlFCUSimple (FunctionBlock) Examples_ImagePool (ImagePool) Misc DailyMeanTemperature (FunctionBlock) When does the daily mean temperature gets valid? “Warp clock”-enabled HeatingCharacteristicCurve (FunctionBlock) Application example Functionality HysteresisReal (FunctionBlock) LogBoolChange (FunctionBlock) RoomSetpoint (FunctionBlock) “effective comfort setpoint” Setpoint outputs - whats the difference Optimization EnergyLevelSetpoint (FunctionBlock) VDI 3814 reference HeatCoolUsingOutdoorAir (FB) Functionality Cooling mode Heating mode Time related DateTimeSplit (FunctionBlock) MaxOnTime (FunctionBlock) “Warp clock”-enabled MinOnOffTime (FunctionBlock) “Warp clock”-enabled OnOffDelay (FunctionBlock) “Warp clock”-enabled OperationalTime (FunctionBlock) “Warp clock”-enabled PeriodicTimer (FunctionBlock) “Warp clock”-enabled WarpClock (FunctionBlock) AddTime (Method) ComputeWarpFactor (Method) GetDateTime (Method) GetLocalSystemTime (Method) GetUtcSystemTime (Method)

PoolExtender ¶ AsyncProperty (Folder) GetInstancePointer (Method)

AsyncProperty (FB) ¶ FUNCTION_BLOCK PUBLIC FINAL AsyncProperty IMPLEMENTS IAsyncProperty Structure for defining the properties of a background task InOut: Scope Name Type Initial Comment Input Const tgTaskGroup TASK_GROUP ‘IEC-Tasks’ anAppName APP_NAME ‘Application’ tnTaskName TASK_NAME usiTaskPrio USINT udiTaskInterval UDINT Taskinterval in µs Methods: GetInstancePointer Structure: GetInstancePointer (Method)

RSMClass (FB) ¶ FUNCTION_BLOCK ABSTRACT RSMClass InOut: Scope Name Type Initial Comment Input Const udiInitialPoolSize UDINT (20 * SIZEOF(__XWORD)) Initial size of Memory available for RSM_HANDLES inside the pool udiNumExtensionBlocks UDINT 10 Set udiNumExtensionBlocks to UDINT#16#FFFFFFFF for the possibility of using SetInitialValue itfPoolExtender IPoolExtender g_PoolExtender Methods: Extend Reset Structure: Extend (Method) Reset (Method)

RSMClass.Extend (METH) ¶ METHOD FINAL Extend : ERROR InOut: Scope Name Type Return Extend ERROR Input udiNumBlocks UDINT

Actuator ¶ Function blocks for building automation specific actuators are collected in this folder. Fan3Stage (FunctionBlock) Fan3StageState (Enum) HVAC_Coil (FunctionBlock) Functionality SetError (Method) HVAC_RotaryHeatExchanger (FunctionBlock) Functionality optional cleaning operation malfunction detection malfunction locking SetError (Method) HeatCool2Linear (FunctionBlock) IActuatorContinuous (Interface) DateTimeProvider (Property) Enable (Property) ErrorIdOut (Property) ErrorOut (Property) Reset (Property) Setpoint (Property) IActuatorOnOff (Interface) DateTimeProvider (Property) ErrorIdOut (Property) ErrorOut (Property) IsOn (Property) RequestOn (Property) Reset (Property) IValveContinuous (Interface) PumpOnOff (FunctionBlock) Application example Device examples Functionality on / off delay blocking protection command execution monitoring malfunction detection malfunction locking DateTimeProvider (Property) ErrorIdOut (Property) ErrorOut (Property) IsOn (Property) RequestOn (Property) Reset (Property) ValveContinuous (FunctionBlock) Functionality Blocking protection DateTimeProvider (Property) Enable (Property) ErrorIdOut (Property) ErrorOut (Property) Reset (Property) Setpoint (Property) ValveSixWay (FunctionBlock) Application example Device examples Functionality ValveThermo (FunctionBlock) Application example Device examples Functionality Normally closed valves and warmup: Blocking protection DateTimeProvider (Property) Enable (Property) ErrorIdOut (Property) ErrorOut (Property) Reset (Property) Setpoint (Property) ValveThermoWarmupState (Enum) WindowActuator (FunctionBlock) Application example Device examples Functionality WindowActuatorState (Enum)

RSMClass.Reset (METH) ¶ METHOD FINAL Reset : ERROR InOut: Scope Name Type Initial Return Reset ERROR Input udiInitialPoolSize UDINT udiNumExtensionBlocks UDINT itfPoolExtender IPoolExtender 0

Globals ¶ PoolHandling (GVL)

PoolHandling (GVL) ¶ InOut: Name Type Initial g_AsyncProperty AsyncProperty STRUCT(tnTaskName := ‘PoolExtender’, usiTaskPrio := 30, udiTaskInterval := 10000) g_PoolExtender PoolExtender STRUCT(itfAsyncProperty := g_AsyncProperty)