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Commissioning

5.3 TwinCATPLCUPSinterface

5.3.1 FUNCTION_BLOCKFB_GetUPSStatus

Fig.1:FB_GetUpsStatus

RequirementsunderNT4,Win2K,WinXP,WinXPembedded:

• TheBeckhoffUPSsoftwarecomponentsareinstalled(additionaltabunderControlPanel>Energy

Options>BeckhoffUPSConfiguration);.

• TheUPShasbeenconfiguratedwiththeWindowsUPSservice(ControlPanel>EnergyOptions

>UPS)ortheBeckhoffShellextension(ControlPanel>EnergyOptions>BeckhoffUPS

Configuration).FurtherinformationabouttheUPSconfigurationcanbefoundintheconsidering

documentation.

RequirementsunderWindowsCE:

• BeckhoffCEdeviceswith24VUPSservicearedeliveredwithaspecialBeckhoffBatteryDriverfor

WindowsCE.ThedriverisincludedinthestandardCEImage.Nofurtherconfigurationsettingsare

required.

WiththeFB_GetUPSStatusfunctionblockthePLCcanreadthestatusofaUPShardware.Theblockis

leveltriggered,whichmeansthatthestatusinformationisonlycyclicallyreadwhilethebEnableinputisset.

Tomaintainsystemloadingatalowlevel,thestatusinformationisonlyreadapproximatelyevery4.5s.

WhenthebValidoutputisset,themostrecentlyreaddataisvalid.Themostrecentreadcyclewas,inother

words,executedwithouterror.Ifanerroroccurs,thereadcycleisrepeated,andtheerrorsignalis

automaticallyresetassoonasthecauseoftheerror(e.g.nocommunicationwiththeUPS)hasbeen

corrected.

VAR_INPUT

sNetId:T_AmsNetId;

nPort:T_AmsPort;(*0=WindowsUPSservice/WindowsBatterydriver*)

bEnable:BOOL;

END_VAR

sNetId:ItispossibleheretoprovidetheAmsNetIdoftheTwinCATcomputeronwhichthefunctiontobe

executed.Ifitistoberunonthelocalcomputer,anemptystringcanbeentered.

nPort:ADSportnumber.Setthisvaluetozero.Otherportnumbersarereservedforapplicationsinfuture.

bEnable:Iftheinputisset,theUPSstatusisreadcyclically.

VAR_OUTPUT

bValid:BOOL;

bError:BOOL;

nErrId:UDINT;

stStatus:ST_UPSStatus;

END_VAR

ST_UPSStatus [}70]

CX210009x468 Version1.1

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Beckhoff CX2100­09x4 Bedienungsanleitung Seite 68