com.ghgande.j2mod.modbus.facade

Class ModbusUDPMaster

java.lang.Object

com.ghgande.j2mod.modbus.facade.AbstractModbusMaster

com.ghgande.j2mod.modbus.facade.ModbusUDPMaster

public class ModbusUDPMaster
extends AbstractModbusMaster

Modbus/UDP Master facade.

Version:

2.0 (March 2016)

Author:

Dieter Wimberger, Steve O'Hara (4NG)

Constructor Summary

Constructors

Constructor and Description
ModbusUDPMaster(String addr) Constructs a new master facade instance for communication with a given slave.
ModbusUDPMaster(String addr, int port) Constructs a new master facade instance for communication with a given slave.
ModbusUDPMaster(String addr, int port, int timeout) Constructs a new master facade instance for communication with a given slave.

Method Summary

Modifier and Type	Method and Description
void	connect() Connects this ModbusTCPMaster with the slave.
void	disconnect() Disconnects this ModbusTCPMaster from the slave.
AbstractModbusTransport	getTransport() Returns the transport being used by the
boolean	isConnected() Returns true if the master is connected
void	setTimeout(int timeout) Sets the receive timeout

Methods inherited from class com.ghgande.j2mod.modbus.facade.AbstractModbusMaster

getTimeout, maskWriteRegister, maskWriteRegister, readCoils, readCoils, readInputDiscretes, readInputDiscretes, readInputRegisters, readInputRegisters, readMultipleRegisters, readMultipleRegisters, setCheckingValidity, setRetries, writeCoil, writeCoil, writeMultipleCoils, writeMultipleCoils, writeMultipleRegisters, writeMultipleRegisters, writeSingleRegister, writeSingleRegister

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ModbusUDPMaster

public ModbusUDPMaster(String addr)

Constructs a new master facade instance for communication with a given slave.

Parameters:

addr - an internet address as resolvable IP name or IP number, specifying the slave to communicate with.

ModbusUDPMaster

public ModbusUDPMaster(String addr,
                       int port)

Constructs a new master facade instance for communication with a given slave.

Parameters:

addr - an internet address as resolvable IP name or IP number, specifying the slave to communicate with.

port - the port the slave is listening to.

ModbusUDPMaster

public ModbusUDPMaster(String addr,
                       int port,
                       int timeout)

Constructs a new master facade instance for communication with a given slave.

Parameters:

addr - an internet address as resolvable IP name or IP number, specifying the slave to communicate with.

port - the port the slave is listening to.

timeout - Socket timeout in milliseconds

Method Detail

connect

public void connect()
             throws Exception

Connects this ModbusTCPMaster with the slave.

Specified by:

connect in class AbstractModbusMaster

Throws:

Exception - if the connection cannot be established.

disconnect

public void disconnect()

Disconnects this ModbusTCPMaster from the slave.

Specified by:

disconnect in class AbstractModbusMaster

setTimeout

public void setTimeout(int timeout)

Description copied from class: AbstractModbusMaster

Sets the receive timeout

Overrides:

setTimeout in class AbstractModbusMaster

Parameters:

timeout - Timeout in milliseconds

getTransport

public AbstractModbusTransport getTransport()

Description copied from class: AbstractModbusMaster

Returns the transport being used by the

Specified by:

getTransport in class AbstractModbusMaster

Returns:

ModbusTransport

isConnected

public boolean isConnected()

Description copied from class: AbstractModbusMaster

Returns true if the master is connected

Specified by:

isConnected in class AbstractModbusMaster

Returns:

True if connected