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Open RDM


With this Windows Software you can configure and supervise RDM-enabled fixtures. A USB-Interface based on the FT232R (FTDI) is used for DMX communication.

 

What is RDM?

RDM is the abbreviation of remote device management - an extension of the DMX512 protocol specified in ANSI E1.20. To communicate with a specific device the normal DMX stream is paused and a packet with an RDM specific alternate start code is transmitted. Such a packet consists of an alternate start code, a target address, a source address, information regarding to length and meaning and the payload. The packet is finished with a check sum. For more information see the resources...

Typically RDM is used for:

  • changing the start addresses of fixtures (patching)
  • changing the operating mode of fixtures (personality)
  • parameterization
  • retrieving status information (errors, temperatures, currents,...)

 

Software

"RDM Controller" should demonstrate the benefits of remote device management without the need of expensive commercial RDM-Controllers. Furthermore the software can ease the implementation of RDM in your own devices or softwares.

"RDM Controller" incl. sources is GPLv2 and written in C++ (C++ Builder 6).


 

The Config panel is used for configuring fixtures. Currently the following parameters are supported:

  • device name (can be edited)
  • manufacturer
  • product category
  • version of firmware
  • start address (can be edited)
  • DMX footprint
  • Personality (can be edited)
  • inversion of pan and tilt
  • device hours
  • lamp hours (can be edited)
  • state of fixture
  • preheat, limit and error scene

 

Fixtures can be patched rapidly with the patch panel.
The DMX panel emulates a simple DMX desk with 16 channels. You can test fixtures with it.

 

Hardware

The openRDM-Dongle is made of an FT232R of FTDI. OpenRDM is backward compatible to OpenDMX of Enttec (but not vice versa!).

Instead of developing a layout and etching pcbs we use some cheap RS485 modules made by Devantech.

 

Demo-Responder

At the moment commercial RDM-enabled fixtures are quite expensive. So for first experiences with RDM the DMX-Transceiver with the RDM firmware might be a good choice. (This firmware is discussed on the resources page.)
Alternatively you might use the RDM dimmer firmware.