FP_SD_CREATE_DIR

Create directory on SD card

This FP instruction creates a directory on the SD card with the name specified by s1_FullDirName.

Parameters

Input

s1_FullDirName (STRING): Directory name: specifies the name of the directory.

Remarks

The SD memory access active flag (sys_bIsSDMemoryAccessActive) turns to TRUE after the trigger EN of the SD card instruction has turned to TRUE and remains TRUE until execution has completed. During this time, other SD card instructions cannot be executed.
A subdirectory can only be created directly under its parent directory with one instruction. For directories in lower hierarchy levels, parent directories must be created first.
If the directory to be created already exists, no error occurs.

Error flags

sys_bIsOperationErrorHold (turns to TRUE and remains TRUE)

if the area specified using the index modifier exceeds the limit.

sys_bIsOperationErrorNonHold (turns to TRUE for one scan)

if the area specified using the index modifier exceeds the limit.

Example

POU header

All input and output variables used for programming this function have been declared in the POU header.The same POU header is used for all programming languages.

	VAR
		bStart: BOOL:=FALSE;
			(*activates the instruction*)
	END_VAR

POU body

When the variable bStart changes from FALSE to TRUE and the system variable sys_bIsSDMemoryAccessActive is not TRUE, the function is carried out. It creates the directory 'Test' in the root directory of the SD card.

LD body

BODY
    WORKSPACE
        NETWORK_LIST_TYPE := NWTYPELD ;
        ACTIVE_NETWORK := 0 ;
    END_WORKSPACE
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 6 ;
        NETWORK_BODY
B(B_VARIN,,'\Test\',21,2,23,4,);
B(B_CONTACT,,bStart,3,1,5,3,R);
B(B_CONTACT,,sys_bIsSDMemoryAccessActive,11,1,13,3,N);
B(B_F,FP_SD_CREATE_DIR!,,23,0,33,4,,?DEN?Ds1_FullDirName?AENO);
L(1,2,3,2);
L(13,2,23,2);
L(5,2,11,2);
L(1,0,1,6);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

ST body

IF DF(bStart)AND not sys_bIsSDMemoryAccessActive then
    FP_SD_CREATE_DIR('\Test');
END_IF;