11-2Communicating with Devices on an Ethernet Network

Assigning Your IP Address

Network Addressing

Configuring Channel 2 for Ethernet Communication

Contact your network administrator or the Network Information Center for a unique IP address to assign to your PLC-5/20E, -5/40E, or 5/80E controller.

Because the Ethernet PLC-5 controller uses the TCP/IP protocol, each controller on the network requires a unique IP address. The IP address is software-configurable using either the BOOTP protocol or your programming software.

If you are using the BOOTP protocol, you must also obtain the hardware Ethernet address. Rockwell Automation assigns each Ethernet PLC-5 controller a hardware Ethernet address at the factory. Look for the address either:

in the back, upper corner of your module; or

in the channel 2 configuration screen of your programming software

After you assign a unique IP address to your Ethernet PLC-5 controller, you must configure channel 2 so your network recognizes the controller. Configure this channel using one of two methods:

manually entering module configuration information using the screens within your programming software package

entering module configuration information using a BOOTP utility (use a BOOTP server on your network to edit the BOOTPTAB file)

Manually Configuring Channel 2

The default for the Ethernet PLC-5 controller is BOOTP enabled. You must first disable BOOTP before you can use the programming software to enter module configuration information.

Publication 1785-UM012D-EN-P - July 2005

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Bradley Smoker PLC-5 user manual Network Addressing, Manually Configuring Channel, Assigning Your IP Address