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