Rockwell-automation 1747-PCIS API Software - Open Controller Manual de usuario descargar pdf (Pagina 137)

Publication 1747-UM002A-US-P - June 2000

Library of Routines 6-77

Considerations:

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

Example:

OCIOCFG ‘iocfg

int retcode;

/* Either OC_CreateIOConfiguration() or

OC_GetIOConfiguration() were */

/* called previously to fill in ’iocfg’ structure */

retcode = OC_WriteIOConfigFile( &iocfg, ”RACK1.CFG” );

OC_WriteModuleFile

OC_WriteModuleFile writes a data file to a module.

Syntax:

int OC_WriteModuleFile(HANDLE handle, BYTE ftype,

WORD *mfile, int slotnum, WORD offset, WORD len);

Parameters:

Description:

This function accesses an internal data file of the selected module. I/O

scanning is blocked while this access takes place.

Parameter: Description:

handle Must be a valid handle returned from OC_OpenScanner

ftype Defines the module type as:

FILTYP_M0 M0 file

FILTYP_M1 M1 file

FILTYP_G G file

mfile Buffer file that contains data read from the module at

slotnum

The data in mfile is written to the module starting at word

offset. This function does not write data past the end of the

module file for the slot.

slotnum Must be a valid slot number

offset Must be valid word number within module file

len Number of words written from the module located at

slotnum on

the scanner into the buffer

mfile

1 2 ... 132 133 134 135 136 137 138 139 140 141 142 ... 173 174

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Rockwell-automation 1747-PCIS API Software - Open Controller Manual de usuario Pagina 137