libMbopll动态库是面向linux平台设计的modbus主机协议栈，可以运行在x86平台以及各种嵌入式linux平台；协议栈提供了简单明了的API接口提供给程序员进行应用层modbus主机程序开发，对modbus协议通信与底层操作进行了封装，开发人员不需要了解modbus协议及进行底层程序开发；

    libMbopll库支持modbus协议所有功能码操作，兼容modbus tcp及modbus rtu;

#ifndef _Mbpoll_H

#define _Mbpoll_H

#include <stdint.h>

class cMbpoll

{

private:

void *mp;

unsigned int gettickcount();

unsigned int limittime;

void checklimit(void);

protected:

public:

void pollnewrtu(const char *device, int baud, char parity,int data_bit, int stop_bit);//Function modbus rtu new

void pollnewtcp(const char *ip_address, int port);//Function modbus tcp new

void poll_set_response_timeout(const struct timeval *timeout);//Function set response timeout

int poll_set_slave(int slave);//Function set slave id

int read_bits(int addr, int nb, uint8_t *dest);//Function 01 (01hex) Read Coils

int read_input_bits(int addr, int nb, uint8_t *dest);//Function 02 (02hex) Read Discrete Inputs

int read_registers(int addr, int nb, uint16_t *dest);//Function 03 (03hex) Read Holding Registers

int read_input_registers(int addr, int nb, uint16_t *dest);//Function 04 (04hex) Read Input Registers

int write_bit(int coil_addr, int status);//Function 05 (05hex) Write Single Coil

int write_register(int reg_addr, int value);//Function 06 (06hex) Write Single Register

int write_bits(int addr, int nb, const uint8_t *data);//Function 15 (0Fhex) Write Multiple Coils

int write_registers(int addr, int nb, const uint16_t *data);//Function 16 (10hex) Write Multiple Registers

int write_and_read_registers(int write_addr, int write_nb,const uint16_t *src, int read_addr, int read_nb,uint16_t *dest);//Function 23 (17hex) Read/Write multiple registers

cMbpoll();

~cMbpoll();

};

#endif

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