#include?
#ifndef?_MSC_VER
#include?
#endif
#include?
#include?
#include?

#include?“modbus.h“????????????//引用libmodbus庫

/*The?goal?of?this?program?is?to?check?all?major?functions?of?libmodbus:
-write_coil
-read_bits
-write_coils
-write_register
-read_register
-write_registers
-read_registers

All?these?functions?are?called?with?random?values?on?a?address?range?
defined?by?the?following?defines.
*/
#define?LOOP				1
#define?SERVER_ID			17
#define?ADDRESS_START???????0
#define?ADDRESS_END			99

/*?At?each?loop?the?program?works?in?the?range?ADDRESS_START?to?*ADDRESS_END
then?ADDRESS_START?+?1?to?ADDRESS_END?and?so?on.
*/
int?main（void）
{
	modbus_t?*ctx;
	int?rc;
	int?nb_fail;
	int?nb_loop;
	int?addr;
	int?nb;
	uint8_t??*tab_rq_bits;????????????????//用于保存發送或接收的數據（下同）
	uint8_t??*tab_rp_bits;
	uint16_t?*tab_rq_registers;
	uint16_t?*tab_rw_rq_registers;
	uint16_t?*tab_rp_registers;
	
	/*RTU*/
	ctx?=?modbus_new_rtu（“COM3“?19200?‘N‘?8?1）;???//創建一個RTU類型的容器
	modbus_set_slave（ctx?SERVER_ID）;?????????????????//設置從端地址
	
	modbus_set_debug（ctx?TRUE）;??????????????????????//設置debug模式
	
	if（modbus_connect（ctx）?==?-1）
	{
		fprintf（stderr?“Connection?failed:?%s\n“
				modbus_strerror（errno））;
		modbus_free（ctx）;
		return?-1;
	}
	
	/*Allocate?and?initialize?the?different?memory?spaces*/
	nb?=?ADDRESS_END?-?ADDRESS_START;???????????	??//計算需測試的寄存器個數
	
	//以下申請內存塊用以保存和接收各數據
	tab_rq_bits?=?（uint8_t?*）malloc（nb?*?sizeof（uint8_t））;
	memset（tab_rq_bits?0?nb?*?sizeof（uint8_t））;
	
	tab_rp_bits?=?（uint8_t?*）malloc（nb?*?sizeof（uint8_t））;
	memset（tab_rp_bits?0?nb?*?sizeof（uint8_t））;
	
	tab_rq_registers?=?（uint16_t?*）malloc（nb?*?sizeof（uint16_t））;
	memset（tab_rq_registers?0?nb?*?sizeof（uint16_t））;
	
	tab_rp_registers?=?（uint16_t?*）malloc（nb?*?sizeof（uint16_t））;
	memset（tab_rp_registers?0?nb?*?sizeof（uint16_t））;
	
	tab_rw_rq_registers?=?（uint16_t?*）malloc（nb?*?sizeof（uint16_t））;
	memset（tab_rw_rq_registers?0?nb?*?sizeof（uint16_t））;
	
	nb_loop?=?nb_fail?=?0;
	while（nb_loop++?	{
		//從起始地址開始順序測試
		for（addr?=?ADDRESS_START;?addr?		{
			int?i;
			
			//生成隨機數用于測試
			for（i?=?0;?i?			{
				tab_rq_registers[i]?=
					（uint16_t）（65535.0?*?rand（）?/?（RAND_MAX?+?1.0））;
				tab_rw_rq_registers[i]?=?~?tab_rq_registers[i];
				tab_rq_bits[i]?=?tab_rq_registers[i]?%?2;
			}
			nb?=?ADDRESS_END?-?addr;
			
			/*測試線圈寄存器的單個讀寫*/
			rc?=?modbus_write_bit（ctx?addr?tab_rq_bits[0]）;???//寫線圈寄存器
			if（rc?!=?1?）
			{
				printf（“ERROR?modbus_write_bit?（%d）\n“?rc）;
				printf（“Address?=%d?value?=%d\n“?addr?tab_rq_bits[0]）;
				nb_fail++;
			}
			else
			{
				//寫入之后再讀取比較
				rc?=?modbus_read_bits（ctx?addr?1?tab_rp_bits）;
				if（rc?!=?1?||?tab_rq_bits[0]?!=?tab_rp_bits[0]）
				{
					printf（“ERROR?modbus_read_bits?single?（%d）\n“?rc）;
					printf（“adress?=?%d\n“?addr）;
					nb_fai

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????97503924??2018-10-11?17:08??ModBus軟件開發實戰指南\ModBus軟件開發實戰指南.pdf
?????目錄???????????0??2018-10-11?17:18??ModBus軟件開發實戰指南\RTU模式源碼（純手打）\
?????文件????????7725??2018-10-11?16:35??ModBus軟件開發實戰指南\RTU模式源碼（純手打）\TestRtuMaster.c
?????文件????????1549??2018-10-11?17:00??ModBus軟件開發實戰指南\RTU模式源碼（純手打）\TestRtuSlave.c
?????目錄???????????0??2018-10-11?17:19??ModBus軟件開發實戰指南\