Rockwell Automation 6001-F2E AB STANDARD DRIVER SFTW - Manual (Page 23)

Appendix
A
A-1
Application Program Examples
The following program is an application that shows how to write
information to Data File 9 of an SLC-500 processor using the Application
Library and the PLC-2 (Unprotected Write) function symbol. If you are
communicating to an SLC-500 using the unprotected read or unprotected
write commands, you must first create Data File 9 in the SLC-500. The
SLC-500 uses this file for DH-485 communication. The data table
address (defined as dt_addr in the Appl_StdDrv() function) will be
interpretted by the SLC-500 as a logical offset (in words) into Data File 9.
See the SLC-500 Advanced Programming Software Manual, chapter A3,
for more information on the SLC-500 memory organization
/* ––––––––––––––––––––––––––––––––––––––––––––––––––– */
/* A typical 6001-F2E Application */
/* Calling the Application Library via the APPL function dispatcher */
/* Write 2 integers to a remote SLC-500 */
/* include <stdio.h> */
/* 6001-F2E linkable driver include files: */
#include “krdefs.h”
#include “stddrv.h”
/* Define the communication device */
char device[] = “KR:0”
main()
{
#define NORMAL 1 /* Normal F2E status */
int i
size, /* Data qty in bytes */
d_buff[4], /* Integer data buffer */
PLC_FCT;
char err_msg[80];
unsigned char DST=2, /* Byte wide destination */
unsigned int io_stat[2], /* Status variables */
fct_stat,
/* dt_addr[2]={0,0}, */
timeout=5; /* 5 second timeout */
Sample Program