en:mervis-ide:35-help:035-software_basic:060-libraries:060-lib-mervis:020-measurement-and-control:025-sources:005-boilers:020-modulatedstage

Block used for controlling the performance of a general modulated source.

program test
    var
        modulatedStage: lib.mervis.v1_0.ModulatedStage;
    end_var

    modulatedStage();
end_program

Inputs	Name	Data Type	Retain	Required Connection	Meaning
OperatingMode	Lib.Mervis.v1_0.OperatingModeType	Yes	No	Source operating mode
ManualPower	real	Yes	No	Source power in manual mode
StageDemand	Lib.Mervis.v1_1.StageControlType	No	Yes	Combined demand from the cascade controller
Running	bool	No	No	Feedback signal of source operation
Failure	bool	No	No	Feedback signal of source failure
ResetRuntime	bool	No	No	Reset runtime hours
Xp	real	No	No	PI controller - proportional band
Ti	real	No	No	PI controller - integral time
FailureDelay	time	No	No	Interval waiting for active source operation feedback
FailureCountLimit	uint	No	No	Number of consecutive source errors before it is permanently marked as non-functional
FailureTimeout	time	No	No	Time after an unsuccessful source start before retrying
LimitingXp	real	No	No	PI controller for limiting the maximum output temperature - proportional band
LimitingTi	real	No	No	PI controller for limiting the maximum output temperature - integral time
RunTimeSource	Lib.Mervis.v1_0.RunTimeSourceType	No	No	Determines how the source runtime hours are counted

Outputs	Name	Data Type	Meaning
State	Lib.Mervis.v1_1.StageInfoType	Combined source state to the cascade controller
Demand	real	Required source power
RunTimeInHours	udint	Source runtime in whole hours
FailureOutput	bool	Source fault
AlarmsStatus	Lib.Mervis.v1_0.AlarmsStatus	Combined interface for alarm indication
RunTime	time	Source runtime

Blocks	Name	Data Type	Meaning
FailureFb	Lib.Mervis.v1_0.FailureDetector	Block for evaluating source failure
Alarms	Lib.Mervis.v1_0.AlarmsExtender1	Alarm function block	Alarm Input	Priority	Meaning	Alarm1	32/33	Source fault

TODO

Modulated Source (v1.0)