Rockwell Automation 1785-Vx0B, D17856.5.9 PLC-5 VME VMEbus Programmable Controllers User Manual - Manual (Page 216)

Sample API Modules
Appendix B
B-58
#ifndef P40VECHO_H
#define P40VECHO_H 1
///////////////////////////////////////////////////////////////////////////////
// Definitions for the PCCC ECHO COMMAND AND REPLY PACKETS //
///////////////////////////////////////////////////////////////////////////////
#include ”p40vspcc.h”
#pragma pack(1)
/***************************************************************************/
/************************ INTEL VERSION OF DEFINITIONS *********************/
/***************************************************************************/
/* The PCCC Echo command packet structure. */
typedef struct
{
UBYTE reserved[4];
UBYTE cmd;
UBYTE sts;
UWORD tns;
UBYTE fnc;
PLC540V_PCCC_DATA_TYPE data;
} PLC540V_PCCC_ECHO_CMD_TYPE;
#define kPLC540V_PCCC_ECHO_CMD_SIZE (sizeof(PLC540V_PCCC_ECHO_CMD_TYPE))
/* The PCCC Echo reply packet structure. */
typedef struct
{
UBYTE lnhHi;
UBYTE lnhLo;
UBYTE reserved[4];
UBYTE cmd;
UBYTE sts;
UWORD tns;
PLC540V_PCCC_DATA_TYPE data;
} PLC540V_PCCC_ECHO_RPY_TYPE;
#define kPLC540V_PCCC_ECHO_RPY_SIZE (sizeof(PLC540V_PCCC_ECHO_RPY_TYPE))
#pragma pack()
void plc540v_pccc_echo(
ULONG vmeCmdBlkAddr,
UWORD baseAddress,
VME_DATA_WIDTH_TYPE width,
VME_ADDRESS_MODIFIER_TYPE addrMod,
PLC540V_PCCC_DATA_TYPE data,
UBYTE dataLength,
PLC540V_PCCC_ECHO_RPY_TYPE *reply,
PLC540V_STATUS_TYPE *status);
#endif
P40VECHO.H