Getting DMX engines online

The DMX engines Butler S2 or Butler XT2 sometimes seem to cause trouble when trying to connect them to the LAS (Lighting Application Suite) server. In nearly all cases the connection between Butler and server is not correct, IP addresses are duplicated or wrong cable used. For this reason here a more detailed description.

Use the right cables and switches

System diagram

System diagram

Do not connect server and engine with an Ethernet cable directly. Use an Ethernet switch in any case, like shown in this picture. The Ethernet switch may have DHCP enabled or not, as nobody sends DHCP requests, it does not matter.

Even an Ethernet cross cable will not work in any case, in general avoid cross cables as they may cause damages, e. g. in networks with Power-over-Ethernet. Be sure not to use any cross cable at all, they are devil’s work.

RJ45 pairing

RJ45 pairing

You can recognize a cross cable when laying the two plugs together. A cross cable reverses the pinning on the two sites, the standard RJ45 cable does not, like in this picture. This is a general RJ45 CAT5 Ethernet cable without crossing. The red wires are on the same side, the pinning is identical on both sides.

Connect all Butlers over this switch to the server running the Programmer or Patchelor.

Do not mix networks

Programmer - Appl Options

Programmer – Appl Options

Use a separated, closed network segment for your lighting control. Do not use enterprise or open networks. The best way is to use a dedicated Ethernet card in the server, a switch and the Butlers. Be sure to assign the right network card in the Programmer in the Application Options, if there are more than one in the server.

Use the network IP range 192.168.123.*, assign a unique IP address to the server network interface, like or similar, this is done with the Windows Control Panel in the network section. Be sure that the server IP address is really unique and does not conflict with any UMTS USB/WLAN sticks or WLAN adapters. Build a clear address structure in your network, this makes it easier to separate address ranges, like

  • = do not use, reserved for factory state engines!
  • – = servers
  • – = engines
  • – = any other network devices

The hidden enemy

Be sure that all firewalls are switched off. As the e:net system is a closed network, no firewall is necessary, neither in hardware nor in software. Firewalls in Windows 7 get switched off via the Control Panel.

Set proper IP addresses

When arriving from the factory, the Butlers have an assigned IP address, always. To connect more than one Butler be sure to have only one of them connected to the network, otherwise more than one system will try to communicate over, which will not work. Never connect more than one factory-state Butler to the network.

Programmer - Network

Programmer – Network

If all is well, the Butler should become visible in the Network tab of the Programmer now. If this happens, the Butler is recognized and the network seams to work properly.

Now assign a unique and new IP address to this engine, to do so, click on the device in the network tab line, here “Butler XT2” and the device configuration dialogue opens. In this dialogue a new IP address can be given to the Butler.

Device configuration

Device configuration

Enter a new IP address for this engine, click OK and the new configuration will be transferred to the Butler. Now you may connect the next Butler to the network and continue to set up all addresses.

Be sure that every engine has a unique IP address, also the server!

Even better with the Butler XT2

Butler XT2 standalone config

Butler XT2 standalone config

The Butler XT2 has a build-in webserver, connect a PC with a webbrowser instead of a server with the Programmer. Or use a WLAN router to be connected with the Butler XT2 and access the Butler XT2 with PC or mobile devices with a webbrowser.




butler_xt2_webconfig_mainStart the web browser and enter the IP address of the Butler XT2 in the address field of the browser, in factory state (if the Butler was configured differently before and you do not know the IP address, perform a Reset to factory settings).

Butler XT2 password

Butler XT2 password

You can now see the current settings and  parameters.To change the configuration, click the upper Configure button and enter the password.
The default password is “ecue”, it can be changed during configuration.

Set the parameters and click Submit to save the changes. This makes the basic configuration of several Butler XT2s much easier.

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