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Frequently Asked Questions 



How do I configure the network settings of Prologix GPIB-ETHERNET Controller?

  • Prologix NetFinder utility can locate and configure all Prologix GPIB-ETHERNET controllers in the local network. The controllers implement a discovery and configuration protocol using UDP broadcasts. Since routers do not (normally) forward broadcast packets, NetFinder can only locate controllers in the same network segment as the PC on which it is running. There can be hubs, switches or bridges between the PC and GPIB-ETHERNET controllers, but no routers. ETHERNET

    Prologix GPIB-ETHERNET controllers support static IP and DHCP.

    Since the discovery protocol does not need to know the IP address of controllers, it can be used to (re)configure controllers with unknown IP address, misconfigured address (for example, wrong network), or to discover their DHCP assigned IP.

How do I configure the GPIB settings of Prologix GPIB-ETHERNET Controller?

  • Easiest way to configure GPIB settings is to use Prologix.exe (part of KE5FX GPIB toolkit). Prologix.exe uses the discovery protocol to locate all Prologix GPIB-ETHERNET controllers in the local network. Once the controllers are discovered, select the controller you want and configure its GPIB settings (mode, GPIB address etc.) just the same way you would configure a GPIB-USB controller.

What is the difference between NetFinder and Prologix.exe utilities?

  • Use NetFinder to discover GPIB-ETHERNET controllers and to configure their network settings. Use Prologix.exe to configure their GPIB settings. A unified utility is forthcoming.

How do I communicate with Prologix GPIB-ETHERNET Controller?

  • After discovering the IP address of the controller (using NetFinder or Prologix.exe), connect to its TCP port 1234. Once connected, the command interface is identical to that of Prologix GPIB-USB controller. You can communicate using:

    1. Terminal window in Prologix.exe
    2. Terminal utilities such as TeraTerm or HyperTerm applications (both support TCP connections in addition to serial connections)
    3. Custom programs using sockets. Most programming languages and frameworks support network connectivity.
    Sample programs will be available soon.

How do I connect Prologix GPIB-ETHERNET Controller directly to my PC or laptop?

  • If the network card on your PC or Laptop supports auto-MDIX (most new ones do) you use a straight Ethernet cable to connect to GPIB-ETHERNET controller. Otherwise you need a hub in between, or alternately, an Ethernet cross-over cable.

How do I communicate with Prologix GPIB-ETHERNET Controller over wireless network?

  • You need a wireless bridge. Connect Prologix GPIB-ETHERNET controller to the wireless bridge, and configure the bridge to connect to your wireless LAN. Follow bridge manufacturer's instructions. Wireless bridges are often sold as "gaming adapters" or "print servers". We have successfully tested with the following devices:

    1. Linksys WGA54G Gaming Adapter – easy to setup, but can bridge only one GPIB-ETHERNET controller
    2. Netgear WGPS606 Print Server – can bridge up to 4 GPIB-ETHERNET controllers

What kind of power supply does Prologix GPIB-ETHERNET Controller need?

  • Prologix GPIB-USB controller ships with a 110-240V power adapter. Non-US customers will need a plug adapter. There is no need for a voltage converter.