Arduino class library for communicating with Modbus devices over USB/RS232/485 (via RTU protocol). More...

#include <ModbusRtu.h>

Public Member Functions
	Modbus ()
	Default Constructor for Master through Serial. More...

	Modbus (uint8_t u8id, uint8_t u8serno)

	Modbus (uint8_t u8id, uint8_t u8serno, uint8_t u8txenpin)

void	begin (long u32speed)
	Initialize class object. More...

void	begin ()

void	setTimeOut (uint16_t u16timeout)
	write communication watch-dog timer More...

uint16_t	getTimeOut ()
	get communication watch-dog timer value More...

boolean	getTimeOutState ()
	get communication watch-dog timer state More...

int8_t	query (modbus_t telegram)
	only for master More...

int8_t	poll ()
	cyclic poll for master More...

int8_t	poll (uint16_t *regs, uint8_t u8size)
	cyclic poll for slave More...

uint16_t	getInCnt ()
	number of incoming messages More...

uint16_t	getOutCnt ()
	number of outcoming messages More...

uint16_t	getErrCnt ()
	error counter More...

uint8_t	getID ()
	get slave ID between 1 and 247 More...

uint8_t	getState ()

uint8_t	getLastError ()
	get last error message More...

void	setID (uint8_t u8id)
	write new ID for the slave More...

void	end ()
	finish any communication and release serial communication port More...

Detailed Description

Arduino class library for communicating with Modbus devices over USB/RS232/485 (via RTU protocol).

Definition at line 141 of file ModbusRtu.h.

Constructor & Destructor Documentation

Definition at line 218 of file ModbusRtu.h.

Definition at line 234 of file ModbusRtu.h.

void Modbus::begin ( )

Definition at line 299 of file ModbusRtu.h.

void Modbus::end ( )

finish any communication and release serial communication port

uint16_t Modbus::getTimeOut ( )

get communication watch-dog timer value

The documentation for this class was generated from the following file: