Modbus Object Instantiation/Initialization

Functions
	Modbus::Modbus ()
	Default Constructor for Master through Serial. More...
void	Modbus::begin (long u32speed)
	Initialize class object. More...
void	Modbus::setID (uint8_t u8id)
	write new ID for the slave More...
uint8_t	Modbus::getID ()
	get slave ID between 1 and 247 More...
void	Modbus::setTimeOut (uint16_t u16timeout)
	write communication watch-dog timer More...

Detailed Description

Function Documentation

void Modbus::begin

(

long

u32speed)

Initialize class object.

Sets up the serial port using specified baud rate. Call once class has been instantiated, typically within setup().

See Also

http://arduino.cc/en/Serial/Begin#.Uy4CJ6aKlHY

Parameters

speed	baud rate, in standard increments (300..115200)
config	data frame settings (data length, parity and stop bits)

Definition at line 250 of file ModbusRtu.h.

uint8_t Modbus::getID

(

)

get slave ID between 1 and 247

Method to read current slave ID address.

Returns

u8id current slave address between 1 and 247

Definition at line 323 of file ModbusRtu.h.

Modbus::Modbus

(

)

Default Constructor for Master through Serial.

Definition at line 204 of file ModbusRtu.h.

void Modbus::setID

(

uint8_t

u8id)

write new ID for the slave

Method to write a new slave ID address.

Parameters

u8id	new slave address between 1 and 247

Definition at line 310 of file ModbusRtu.h.

void Modbus::setTimeOut

(

uint16_t

u16timeOut)

write communication watch-dog timer

Initialize time-out parameter.

Call once class has been instantiated, typically within setup(). The time-out timer is reset each time that there is a successful communication between Master and Slave. It works for both.

Parameters

time-out

value (ms)

Definition at line 338 of file ModbusRtu.h.