Nexto XF #64 – Changing the XF IP Address

The purpose of this tutorial is to explain how to change the PLC's IP address.

Components

Equipment: 1 computer/laptop.

                           1 XF300/315/325/325-W

Software:  MasterTool X

Tutorial Sections

1. ARCHITECTURE
2. DEVELOPMENT

1. ARCHITECTURE

A computer/laptop is required to use Mastertool X.

Figure 1. Computer running Mastertool X

2.DEVELOPMENT

The PLC IP address change can be done directly through MasterTool IEC XE, a common procedure during commissioning, maintenance, or network standardization. There are two main ways to perform this change.

Method 1: Change via Easy Connection

This method is used to configure the IP directly on the network, without needing a loaded project.

Prerequisite:

• The CPU must be in STOP mode

Step by step

1.  Access the Communication menu
2. Click on Easy Connection
3. Scan the network
4. Locate and select the desired PLC

After selecting:

1. At the bottom of the window, locate the option for New device configuration
2. Enter the new parameters:
3. IP Address
4. Subnet Mask
5. Gateway
6. Click Apply

Figure 2. IP change via Easy Connection

Operation

• The PLC will receive the new configurations
• The device will automatically restart
• After restarting, it will be operating with the new IP

Important note

• The CPU must be in STOP, otherwise the change will not be allowed

Figure 3. Confirmation of the PLC IP change

Method 2: Change via project (Configuration)

This method is used during project development, configuring the IP directly in the application.

Step by step

1. In the project tree, access:
   CPU (XF325) → NET1
2. Configure the network parameters:
3. IP Address
4. Subnet Mask
5. Gateway
6. Save the project
7. Perform the application download

Figure 4. IP change via NET1

Operation

• During the download, the PLC will receive the defined settings
• The current IP will be replaced by the new configured IP
• The device will respond at the new address

Important note

• During the download, communication may be interrupted due to the IP change
• It may be necessary to reconnect using the new address

Applications in automation

• Initial network configuration
• Address standardization
• Device maintenance
• Integration in industrial systems

General notes

• Always ensure the computer is on the same network
• Be careful not to lose communication after changing the IP
• Confirm parameters before applying

Figure 5. Downloading code to the PLC

Putting the CPU in RUN

After logging in:

1. Access the Debug menu
2. Click Restart (Run)

With this:

• The CPU will enter RUN mode
• The logic will start executing

Figure 6. Putting the PLC into RUN mode

Expected result

After these steps:

• The PLC will be running the program
• The user will be able to monitor variables in real time
• It will be possible to perform tests and logic validations

Important notes

• The computer and PLC IPs must be on the same network
• The Gateway must be configured correctly
• Mapping is essential before login
• The CPU may enter STOP during the process
• It is necessary to manually put it in RUN after login

In summary, the download and login process involves correctly configuring the network, creating the Gateway, mapping the device, and then establishing the connection, allowing the program to run and be monitored on the PLC.