P40vrbp.c, B-70, Appendix b – Rockwell Automation 1785-Vx0B, D17856.5.9 PLC-5 VME VMEbus Programmable Controllers User Manual User Manual
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Sample API Modules
Appendix B
B-70
#include <stdio.h>
#include <stdlib.h>
#include <mem.h>
#include ”epc_obm.h”
#include ”epc_err.h”
#include ”busmgr.h”
#include ”p40vrbp.h”
/***************************************************************************/
/************************* PRIVATE DEFINITIONS ****************************/
/***************************************************************************/
#define kPLC540V_PCCC_RBP_CMD 0x0F
#define kPLC540V_PCCC_RBP_FNC 0x17
/***************************************************************************/
/************************* PRIVATE TYPE DEFINITIONS ************************/
/***************************************************************************/
/***************************************************************************/
/*************************** PRIVATE FUNCTIONS *****************************/
/***************************************************************************/
/*****************************************************************************
*
* PURPOSE: This function sends the PCCC Read Bytes Physical command to the
* PLC–5/40V.
*
* INPUT: ULONG vmeCmdBlkAddr contains the VME address where the
* command block will be copied to so the PLC–5/40V can
* access its information.
*
* UWORD baseAddress contains the base address of the
* PLC–5/40V.
*
* VME_DATA_WIDTH_TYPE width contains the data width that
* should be used for the copy operations. It can be D16
* or D08.
*
* VME_ADDRESS_MODIFIER_TYPE addrMod defines the address space
* in which the VME data is accessed. It can be A16 or A24.
*
*
ULONG plcAddress contains the physical address to write to
*
in the processor.
*
*
UBYTE dataLength contains the number of bytes to write.
*
* PLC540V_PCCC_RBP_RPY_TYPE reply contains PCCC’s Read Bytes
* Physical command specific reply packet.
*
* OUTPUT: PLC540V_STATUS_TYPE *status will contain the final status
* of requesting this function. This status could be and EPC
* or PLC–5/40V value.
*
* RETURNS: Nothing.
*
P40VRBP.C