Rockwell Automation 1747-PCINT API Software for 1746 I/O - Manual (Page 130)

6–76 Library of Routines OC_SetupPowerFail Action
Publication 1747-6.5.3 June 1998
Return Value:
Considerations:
Supported in the DOS API library only.
Example:
This example is for DOS only.
HANDLE Handle;
BYTE buffer1[100];
BYTE buffer2[100];
int retcode;
void PowerFailSave( void ) /* power fail callback routine */
{
len = 100;
OC_WriteRtcSRAM( buffer2, 0, &len );
/* Put data in protected area */
}
retcode = OC_SetupPowerFailAction( Handle, buffer1, 0, 100, PowerFailSave );
Name: Value: Description:
SUCCESS 0 power fail action was registered successfully
ERR_OCACCESS 2
handle does not have access to scanner
ERR_OCINIT 5 scanner has not been initialized, see OC_InitScanner
ERR_OCPARAM
8
parameter contains invalid value