Rockwell-automation 1747-PCIS API Software - Open Controller Manual de usuario descargar pdf (Pagina 114)

Publication 1747-UM002A-US-P - June 2000

6-54 Library of Routines

OC_ResetScanner

OC_ResetScanner generates a hard or soft reset to the scanner.

Syntax:

int OC_ResetScanner(HANDLE handle, int mode);

Parameters:

Description:

After the reset is generated, the scanner begins to execute its POST.

Return Value:

Considerations:

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

Example:

HANDLE Handle;

int retcode;

retcode = OC_ResetScanner( Handle, OCWAIT );

ATTENTION

This call stops scanning and resets outputs.

Parameter: Description:

handle Must be a valid handle returned from OC_OpenScanner

mode If

mode is:

OCNOWAIT OC_ResetScanner returns after releasing the

reset signal to the scanner.

OCWAIT OC_ResetScanner returns after POST is completed.

OCSOFTRESET OC_ResetScanner reinitializes while avoiding the

7-second POST delay. In this mode, the scanner performs

a warm-boot and bypasses the POST. The dual-port RAM

can be epartitioned quickly.

The scanner stops scanning, resets all outputs, and

returns to the power-on condition. After the reset is

complete, you must call OC_InitScanner to initialize the

shared memory interface.

Name: Value: Description:

SUCCESS 0 scanner was reset successfully

ERR_OCACCESS 2

handle does not have access to the scanner

ERR_OCPOST 7 scanner POST failed

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Rockwell-automation 1747-PCIS API Software - Open Controller Manual de usuario Pagina 114