Beckhoff CX210000x4 Manuel d'utilisateur télécharger pdf (Page 23)

Productoverview

2.7 ExampleProgram

ThefollowingPLCprogramshowsbywayofanexamplehowthethreefunctionblocksareusedforthe

powersupplyunit.

PROGRAMMAIN

VAR

nCounterAT%Q*:USINT;

(*naviswitch*)

bUpAT%I*:BOOL;

bDownAT%I*:BOOL;

bLeftAT%I*:BOOL;

bRightAT%I*:BOOL;

bEnterAT%I*:BOOL;

bToggleAT%I*:BOOL;

nIn:USINT;

eNaviSwitchCx2:E_CX2100_NaviSwitch;

(*getdisplay*)

fbGetDisplayText:FB_CXGetTextDisplayUSB;

bExecuteRead:BOOL;

eModeRead:E_CX2100_DisplayModesRd;

nCursorMode:USINT;

nBacklight:USINT;

bReadCursorInfoReq:BOOL:=TRUE;

bReadBacklightReq:BOOL:=TRUE;

bReadLine1Req:BOOL;

bReadLine2Req:BOOL;

bReadLinesReq:BOOL:=TRUE;

(*setdisplay*)

fbSetDisplayText:FB_CXSetTextDisplayUSB;

bExecuteWrite:BOOL;

eModeWrite:E_CX2100_DisplayModesWr;

bCursorOnReq:BOOL;

bCursorOffReq:BOOL;

bBlinkCursorOnReq:BOOL;

bBlinkCursorOffReq:BOOL;

bBacklightOnReq:BOOL;

bBacklightOffReq:BOOL;

bClearDisplayReq:BOOL;

bWriteLine1Req:BOOL;

bWriteLine2Req:BOOL;

bWriteLinesReq:BOOL;

bSetCursorPosXReq:BOOL;

bSetCursorPosYReq:BOOL;

bSetCursorPosXYReq:BOOL;

(*common*)

nCursorPosX:USINT;

nCursorPosY:USINT;

sLine1:STRING;

sLine2:STRING;

bBusy:BOOL;

bError:BOOL;

nErrorID:UDINT;

END_VAR

nCounter:=nCounter+1;

nIn.2:=bUp;

nIn.3:=bDown;

nIn.4:=bLeft;

nIn.5:=bRight;

nIn.6:=bEnter;

(*getnaviswitch*)

eNaviSwitchCx2:=F_CXNaviSwitchUSB(nIn);

(*preparegetdisplaymode*)

IF(eModeRead=eCX2100_DisplayNoActionRd)AND(eModeWrite=eCX2100_DisplayNoActionWr)THEN

IFbReadCursorInfoReqTHEN

eModeRead:=eCX2100_ReadCursorInfo;

bExecuteRead:=TRUE;

ELSIFbReadBacklightReqTHEN

eModeRead:=eCX2100_ReadBackLight;

bExecuteRead:=TRUE;

CX210000x4 23Version1.0

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Beckhoff CX2100­00x4 Manuel d'utilisateur Page 23

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