The configuration software generates a set of configuration data, the so called Config. This Config contains the whole configuration of a RM4200D that is specific to a customer or an application. Please not that one Config contains the information for one Device.

A Config is stored on all micro controllers of their Device in the Flash-EPROM. It is transferred to and from the Device over TCP/IP and Ethernet or over a serial RS232 connection. The corresponding Toolbox4 commands are Load to Device and Load from Device. Thus, it is possible to read a Config out of a device and edit it in the Toolbox4 software. (see Transfer Menu)

	Important
	Before you can load a Config into a RM4200D, all modules of the Config must be connected to the CAN-Bus. They also must contain the same version of the firmware.

The Toolbox4 software can read out Config data from a RM4200D and write it back. This data can be stored in files as well. If a project consists of several Devices, their Configs are managed in a project file. In the software, this structure is displayed in the project tree on the left. On top of the tree, you find the name of the project, underneath are one or more devices with the assigned device names. (see The Project Tree )

Besides, you can save the Config of any single Device in a Device Config File. These files are used to copy Devices Configs from an already existing project into another one. (see also Extract Device to File)

The file extension of a project file is .ddp, the one of a file with just a single Device Config is .ddf.

	Note
	Devices that are to exchange Global Logic Functions or Global Potentiometers with each other must have identical project IDs. Although the Project IDs can be set manually in several Device Config files, this is not recommended. In order to avoid errors in the configuration process, you should work with Project Files exclusively.

	Warning
	Device Config files are mainly used to copy already configured Devices from other projects into a new or already existing one. This way, already defined Global Functions can be overwritten by data copied from other projects.

The structure of a Config file is closely related to the firmware of the RM4200D. Therefore, an update of the firmware often requires an update of the Toolbox4 software and vice versa.

Generally, the data structure of the Config tolerates version changes. Config files generated with an older version of the Toolbox4 software can always be opened and modified in a newer version of Toolbox4.

But if a Config file that was generated with a newer version is opened in an older version of Toolbox4, those functions that were edited in the newer version cannot be recognized and modified. An update of the Toolbox4 software is not necessary if the firmware update of RM4200D did only fix errors but did not add any new functions.

Important

To avoid problems, you should always use matching versions of firmware and the Toolbox4 software. It is especially important to check this when changing individual modules of the RM4200D. The firmware of the modules can be updated using the Toolbox4 software. (See “Maintenance Window” on page 8.) The matching versions of Toolbox4 and firmware as recommended by DHD can be found in the support area of the DHD website at www.dhd-audio.de.