com.langner.jmatic2
Class FetchWriteTCPSettings

java.lang.Object
  com.langner.jmatic2.FetchWriteTCPSettings

public final class FetchWriteTCPSettings

extends java.lang.Object

This class is used to preparing the settings for a new FetchWrite object for a PC/PLC communication using a TCP connection.

Version:

2.0

Author:

Langner Communications AG

Copyright:

Langner (c) 2001-2005

Field Summary

static int

PORT_NOT_USED Use this value for portfetch or portwrite if one of these connections is not needed.

Constructor Summary

FetchWriteTCPSettings(java.net.InetAddress address, int port)
Constructs an initialized object.

FetchWriteTCPSettings(java.net.InetAddress address, int portfetch, int portwrite)
Constructs an initialized object.

Method Summary

java.net.InetAddress	getInetAddress() Returns the network address for connecting the PLC.
int	getPortFetch() Returns the TCP/IP port (FETCH commands) for connecting the remote PLC.
int	getPortWrite() Returns the TCP/IP port (WRITE commands) for connecting the remote PLC.

Methods inherited from class java.lang.Object

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

Field Detail

PORT_NOT_USED

public static final int PORT_NOT_USED

Use this value for portfetch or portwrite if one of these connections is not needed.

See Also:

Constant Field Values

Constructor Detail

FetchWriteTCPSettings

public FetchWriteTCPSettings(java.net.InetAddress address,
                             int portfetch,
                             int portwrite)
                      throws JMaticException

Constructs an initialized object. This constructor initializes the properties with the supplied values. The initalized FetchWriteTCPSettings object will be used to construct and initialize a new FetchWrite object. Note: You may use the Fetch/Write protocol for accessing either a Siemens S5 via the CP1430 or a Siemens S7 via the CP343/443. If you want read and write data from the plc please note that two connections must be configured in the Simatic manager (NetPro), one for the Fetch connection and one for the Write connection.

Parameters:

address - The internet address of the remote PLC. You can obtain a valid address for a given hostname by calling InetAddress.getByName()

portfetch - The TCP port for a Fetch connection. If you don't want a fetch connection use the predefined value

portwrite - The TCP port for a Write connection.

Throws:

JMaticException - if portfetch and portwrite are equal.

See Also:

PORT_NOT_USED.

FetchWriteTCPSettings

public FetchWriteTCPSettings(java.net.InetAddress address,
                             int port)
                      throws JMaticException

Constructs an initialized object. This constructor initializes the properties with the supplied values. The initalized FetchWriteTCPSettings object will be used to construct and initialize a new FetchWrite object. Note: You may use the Fetch/Write protocol for accessing either a Siemens S5 via the CP1430 or a Siemens S7 via the CP343/443. If you want read and write data from the plc please note that two connections must be configured in the Simatic manager (NetPro), one for the Fetch connection and one for the Write connection.

Parameters:

address - The internet address of the remote PLC. You can obtain a valid address for a given hostname by calling InetAddress.getByName()

port - The TCP port for a connection.

Throws:

JMaticException

Method Detail

getInetAddress

public java.net.InetAddress getInetAddress()

Returns the network address for connecting the PLC.

Returns:

InetAddress

getPortFetch

public int getPortFetch()

Returns the TCP/IP port (FETCH commands) for connecting the remote PLC.

Returns:

Port number

getPortWrite

public int getPortWrite()

Returns the TCP/IP port (WRITE commands) for connecting the remote PLC.

Returns:

Port number