Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario descargar pdf (Pagina 57)

OC_ClearFault Library of Routines 6–3

Publication 1747-6.5.3 June 1998

OC_ClearFault OC_ClearFault clears any fault condition of the scanner.

Syntax:

int OC_ClearFault(HANDLE handle);

Parameters:

Description:

All extended error information must be retrieved before the fault can be cleared.

If the scanner encounters an error condition, it generates an extended error and faults. The fault forces the

scanner into Idle mode. The scanner cannot be placed into Scan mode until the fault is cleared.

Return Value:

Considerations:

Supported in the DOS API library and the Windows NT API library

Example:

HANDLE Handle;

int retcode;

retcode = OC_ClearFault( Handle );

Parameter: Description:

handle

Must be a valid handle returned from OC_OpenScanner

Name: Value: Description:

SUCCESS

fault was cleared successfully

ERR_OCACCESS

handle does not have access to the scanner

ERR_OCEXTERR

scanner extended error message, see OC_GetExtendedError

ERR_OCINIT

scanner has not been initialized, see OC_InitScanner

ERR_OCRESPONSE

scanner did not respond to request

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Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario Pagina 57