Fieldbus Controller 750-841 • 83

Starting up an ETHERNET TCP/IP fieldbus node

10. Now it is important to restart the controller by resetting the hardware. To do this, cycle power to the fieldbus controller for approximately 2 seconds or press the operating mode switch down, which is located behind the configuration interface flap on the front of the controller.

Following this, you should see a reply from the PFC stating that the IP address has been accepted (no errors). The IP address is now temporarily stored in the controller. Do not cycle power on the controller until the BootP protocol has been disabled in the PFC.

11.Click on the Stop button, and then on the Exit button to close the BootP Server .

3.1.6.5Testing the Function of the Fieldbus Node

1.To test the controller’s newly assigned I/P address, start a DOS window by clicking on the Start menu item Programs/MS-DOS Prompt

2.In the DOS window, enter the command: "ping " followed by the PFC’s IP address in the following format:

ping [space] XXXX . XXXX . XXXX . XXXX (=IP address). Example: ping 10.1.254.202

3.When the Enter key has been pressed, your PC will receive a query from the controller, which will then be displayed in the DOS window.

If the error message: "Timeout" appears, please compare your entries again to the allocated IP address and check all connections. Verify that the TXD/RXD LEDs flash when the ping command is issued.

4.When the test has been performed successfully, you can close the DOS prompt.

5.Since the IP address is still temporarily stored in the controller. Do not cycle power on the controller until the BootP protocol has been disabled in the PFC.

WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP

84 • Fieldbus Controller 750-841

Starting up an ETHERNET TCP/IP fieldbus node

3.1.6.6 Deactivating the BootP Protocol

By default, the BootP protocol is activated in the controller.

When the BootP protocol is activated, the controller expects the permanent presence of a BootP server. If, however, there is no BootP server available at a power-on reset, the PFC’s network remains inactive.

To operate the controller with the IP configuration stored in the EEPROM, the BootP protocol must be deactivated.

Note

If the BootP protocol is disabled after the IP address assignment, the stored IP address is retained even after power is removed from your controller.

1.Disabling of the BootP protocol is done via the built-in web pages stored in the controller. Open a web browser on your PC (e.g., Microsoft Internet Explorer).

2.Now enter the controller’s I/P address in the address box of the browser and press the Enter key.

3.One of the controller’s built-in web pages is displayed. The opening page displays information about your fieldbus controller. Click the Port hyperlink on the left navigation bar.

4.A dialog window will open and ask for a password. This serves as access protection, and includes the three different user groups: admin, guest and user.

5.To logon as the administrator, enter the user name admin and the password wago.

Note

If the controller does not display the opening HTML page, make sure your web browser is setup to bypass the proxy server for local addresses.

WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP