Description, Return value: considerations, Example – Rockwell Automation 1747-PCIS API Software - Open Controller User Manual
Page 83
Publication 1747-UM002A-US-P - June 2000
Library of Routines 6-23
Description:
When the scanner faults, an extended error is generated. The error
code and slot number of the most recent fault is retained and returned
by this function. The fault cause is a duplicate of the most recent
extended error.
The OC_ClearFault function clears the fault in the scanner but does
not clear the cause of the last fault.
See Appendix A for error codes.
Return Value:
Considerations:
Supported in the DOS API library and the Windows NT API library
Example:
HANDLE
Handle;
BYTE
status, FaultCause;
int
FaultSlot;
int
retcode;
OC_GetScannerStatus ( Handle, &status );
if ( status = SCANSTS_FAULT )
{
retcode = OC_GetLastFaultCause ( Handle,
&FaultCause, &FaultSlot );
}
Name:
Value:
Description:
SUCCESS
0
fault was cleared successfully
ERR_OCACCESS
2
handle
does not have access to scanner
ERR_OCINIT
5
scanner has not been initialized, see OC_InitScanner