Rockwell Automation 1747-PCIS API Software - Open Controller - Manual (Page 62)

Publication 1747-UM002A-US-P - June 2000
6-2 Library of Routines
Example:
BYTE buffer[100];
WORD buffer_crc;
int retcode;
retcode = OC_CalculateCRC( buffer, 100, &buffer_crc );
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 0 fault was cleared successfully
ERR_OCACCESS 2 handle does not have access to the scanner
ERR_OCEXTERR 11 scanner extended error message, see OC_GetExtendedError
ERR_OCINIT 5 scanner has not been initialized, see OC_InitScanner
ERR_OCRESPONSE 10 scanner did not respond to request