DyNet Text Messaging

The DDNG232 can translate any DyNet preset message from any device on the network into ASCII.

This message sends all channels in an area to 0%. It is not used often, as Preset 12 is 'all levels at 0%' by default and is more commonly used as an 'off' command. Dynalite wall panel button LEDs will follow this command, so any preset buttons for the area receiving the off command will also turn off their LEDs.

This message makes it possible to save lighting level changes to an area and thus reconfigure presets. The lighting levels are saved over the current preset levels, so it is important to select the preset to be changed before changing any channel levels and sending the program preset message.

This message causes all load controllers to save the current preset for every logical channel in the area indicated by the area argument. The preset can then be recalled at any time.

Once the Save Current Preset message is used, the previously saved preset number is overwritten in the controller. By default, the saved preset is Preset 1.

The 'Restore Preset' message causes all channels in the defined area to go to the saved preset level. If a preset has not been recorded previously the area will go to preset 1.

If any channels in an area are message, the load controllers will still remember the last preset that area was changed using a message other than a preset in. It is then possible to return an area to its last preset state using the Reset Preset message.

Users can make small changes to a lighting scene using channel level messages, but still return the area to its preset state when required.

The Preset Offset message causes load controllers with channels within the specified area to change their internal offset value for each affected channel. This value is applied as an offset to any received preset message.

The received preset and the offset value are added together, and the load controller adjusts the appropriate channels to the resulting preset number. By default, the preset offset is 0 and any received preset is the absolute preset number.

This feature is used in areas that require different lighting levels at different times of day or night (e.g. bathrooms and corridors). Preset Offset messages are commonly transmitted to the network automatically by a device with a real-time clock.

A load controller receives "Area 4, Preset 1". The controller had previously received "Area 4, Preset Offset 3". The controller therefore sets the affected channels in Area 4 to Preset 4 (1+3).

A third-party device can use the DDNG232 to interrogate the DyNet network for the current state of an area or even a specific channel within an area.

A typical use case would be providing live feedback to a third-party touchscreen to display the current preset for an area.

This is the response from the network to the Request Current Preset message.

This is the response from the network to the Request Channel Level message.

Every area has a configurable Panic preset that can be called using the Panic message. When a control panel sees a Panic message for an area that it controls, it will lock the buttons for that area. This prevents a user from overriding the panic levels. When an Unpanic message is received the area goes back to its previous preset and the buttons on the control panels become active again.

The disable and enable messages allow any buttons configured to an area to be disabled and enabled from a single DyNet message. It is possible on some control panels to set buttons to ignore these messages.

In some circumstances it may be necessary to change the state of some or all button LEDs on a remote panel. To do this a DyNet message is sent to the remote panel containing the new LED illumination configuration. It is possible to change the state of specified button LEDs while leaving others in their current state.

Commands exist to send and receive temperature control messages. Five logical commands are available, three send messages and two request messages.

This message requests the Help function in the DDNG232 from HyperTerminal. The DDNG232 replies with details on all codes, or the specified code if one is given.