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2.8 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;

CX2100-09x426 Version: 1.3

Brand	Beckhoff
Model	CX2100-0904
Category	Power Supply
Language	English

Beckhoff CX2100-0904 User Manual

Table of Contents

Questions and Answers:

Beckhoff CX2100-0904 Specifications

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