### Start Simulator with Template and Serial Number Increment

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.simulator.java/README.md

This command starts the simulator with a template, specifying a TCP/IP port and detailed output. The '-N 10000' parameter sets a high number of simulated devices, and '-X' enables serial number incrementing for meters using the same TCP/IP port.

```bash
java -jar target/gurux.dlms.simulator.java-0.0.1-SNAPSHOT.jar -p 1000 -x simulator_template.xml -t Verbose -N 10000 -X
```

--------------------------------

### Handle Action Requests

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.server.example.java/README.md

Implement the action method to handle client-initiated actions, such as resets. This example provides an empty implementation.

```java
@Override
public void action(ValueEventArgs e)
{
        
}
```

--------------------------------

### Initialize Server Objects

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.server.example.java/README.md

Initialize the objects that the meter will offer. This example adds a data object for the device name and sets its access rights to read-only.

```java
public void Initialize(int port) throws IOException
{
    ///////////////////////////////////////////////////////////////////////
    //Add Logical Device Name. 123456 is meter serial number.
    GXDLMSData d = new GXDLMSData("0.0.42.0.0.255");
    d.setValue("Gurux123456");
    //Set access right. Client can't change Device name.
    d.setAccess(2, AccessMode.READ);
    getItems().add(d);
}
```

--------------------------------

### Start Simulator with Template

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.simulator.java/README.md

Launch the simulator using a previously created template file. '-p 1000' sets the TCP/IP port, '-x simulator_template.xml' specifies the template, '-t Verbose' enables detailed output, and '-N 10' sets the number of simulated devices.

```bash
java -jar target/gurux.dlms.simulator.java-0.0.1-SNAPSHOT.jar -p 1000 -x simulator_template.xml -t Verbose -N 10
```

--------------------------------

### Handle Write Requests

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.server.example.java/README.md

Implement the write method to handle client requests to write data. This example simply prints the new value and the target object's name to the console.

```java
@Override
public void write(ValueEventArgs e)
{
    System.out.println(String.format("Client Write new value %1$s to object: %2$s.", 
        e.getValue(), e.getTarget().getName()));
}
```

--------------------------------

### Create Simulator Template

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.simulator.java/README.md

Use this command to create a simulator template XML file by reading values from a real meter connected to a serial port. The '-t Verbose' option provides detailed output.

```bash
java -jar target/gurux.dlms.simulator.java-0.0.1-SNAPSHOT.jar -S COM8 -o simulator_template.xml -t Verbose
```

--------------------------------

### Handle Media Errors

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.server.example.java/README.md

The onError method is called when the media component encounters an error. This example provides an empty implementation.

```java
@Override
```

--------------------------------

### Read Association View and Objects

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.client.example.java/README.md

Retrieve the Association View from the meter to discover available objects. This involves reading a data block and then parsing the response to get a collection of GXDLMSObject.

```Java
/// Read Association View from the meter.
byte[] reply = readDataBlock(client.getObjects());
GXDLMSObjectCollection objects = client.parseObjects(reply, true);
```

--------------------------------

### Configure GXDLMSClient Parameters

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.client.example.java/README.md

Set up essential parameters for the GXDLMSClient, including referencing type, interface type, client ID, and server ID. These parameters are manufacturer-specific.

```Java
GXDLMSClient client = new GXDLMSClient();

// Is used Logical Name or Short Name referencing.
client.setUseLogicalNameReferencing(true);

// Is used HDLC or COSEM transport layers for IPv4 networks (WRAPPER).
client.setInterfaceType(InterfaceType.HDLC);

// Read http://www.gurux.org/dlmsAddress
// to find out how Client and Server addresses are counted.
// Some manufacturers might use own Server and Client addresses.

client.setClientID(16);
client.setServerID(1);
```

--------------------------------

### Update and Write Complex Data Type (Object Property)

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.client.example.java/README.md

To write complex data types like arrays, first update the object's property in memory, then use the write method. This example updates the listening window of a GXDLMSAutoAnswer object.

```Java
//Read Association view and find GXDLMSAutoAnswer object first.
GXDLMSAutoAnswer item = Client.Object.findByLN("0.0.2.2.0.255", ObjectType.AUTOANSWER);
//Window time is from 6am to 8am.
item.getListeningWindow().add(new AbstractMap.SimpleEntry<GXDateTime, 
    GXDateTime>(new GXDateTime(-1, -1, -1, 6, -1, -1, -1), 
    new GXDateTime(-1, -1, -1, 8, -1, -1, -1)));
readDLMSPacket(Client.write(item, 3));
```

--------------------------------

### Server Class Declaration

Source: https://github.com/gurux/gurux.dlms.java/blob/master/gurux.dlms.server.example.java/README.md

Declare your server class by extending GXDLMSServerBase and implementing IGXMediaListener and gurux.net.yourself to support the DLMS/COSEM protocol and network communication.

```java
public class GXDLMSExampleServer extends GXDLMS ServerBase implements IGXMediaListener,
        gurux.net.yourself
```