FP_SD_GET_FILE_STATUS

Return the properties of a specified file on the SD card

This FP instruction returns the properties of the file on the SD card specified by s_FullFileName and stores the result in d_dutStatus.

Parameters

Input

s1_FullFileName (STRING): File name

Output

d_dutStatus (FP_SD_FILE_STATUS_DUT): Contains the file properties

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.
The SD memory access done flag (sys_blsSDMemoryAccessDone) is FALSE when the instruction is executed and turns to TRUE and remains TRUE when the instruction is completed.

Error flags

sys_bIsSDMemoryAccessError

FALSE: when the instruction has completed without error
TRUE: when the instruction has completed with an error
Use sys_iSDMemoryAccessErrorCode to evaluate the error code.

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*)
		dutFileStatus: FP_SD_FILE_STATUS_DUT;
	END_VAR

POU body

When the variable bStart changes from FALSE to TRUE, the function is carried out.

LD body

BODY
    WORKSPACE
        NETWORK_LIST_TYPE := NWTYPELD ;
        ACTIVE_NETWORK := 0 ;
    END_WORKSPACE
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 4 ;
        NETWORK_BODY
B(B_F,FP_SD_GET_FILE_STATUS!,,20,0,33,4,,?DEN?Ds_FullFileName?AENO?Cd_dutStatus);
B(B_CONTACT,,bStart,3,1,5,3,R);
B(B_CONTACT,,sys_bIsSDMemoryAccessActive,11,1,13,3,N);
B(B_VARIN,,'\Test\TestString1.csv',18,2,20,4,);
B(B_VAROUT,,dutFileStatus,33,2,35,4,);
L(1,2,3,2);
L(13,2,20,2);
L(5,2,11,2);
L(1,0,1,4);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

ST body

IF DF(bStart)AND not sys_bIsSDMemoryAccessActive then
    FP_SD_GET_FILE_STATUS(s_FullFileName := '\Test\TestString1.csv', d_dutStatus => dutFileStatus);
END_IF;