Specifications

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5502DAL C-Bus DALI Gateway Programming Guide

4.0 Messages

When a C-Bus command is sent on the C-Bus network to turn off a mapped group

address this message will be transmitted by the DALI Gateway to the appropriate

load on the DALI network. The converse is also true; a message on the DALI

network can be translated and transmitted on the C-Bus network.

For example, if a key input unit is programmed to toggle Group Address $42 (66),

then DALI_1_GROUP2 will respond. Similarly, if something on the DALI network

were to command DALI_1_GROUP2 to change, then a message to do the same

thing appears on the C-Bus network for Group Address $42 (66). So, an Off

command on the DALI 1 Network to Group 2 makes the indicator on the key input

unit turn off. Pressing the key input unit sends an On command back to the DALI

network to Group 2.

Note: The values transmitted from the DALI Gateway are not stored anywhere in

the C-Bus Network unless a C-Bus unit is programmed to that Group Address.

5.0 Setup

The hybrid systems relevant to the DALI Gateway product necessarily involve both

DALI and C-Bus programming. The following sections touch upon the requirements.

5.1 DALI Setup

Initially, the DALI system will not contain any groups until they are programmed into

the DALI units. DALI programming and commissioning software is sourced from the

manufacturer of the ballasts being used.

The default behaviour of DALI units is to respond to Broadcast On and Broadcast

Off commands. The DALI network is split into two halves: DALI 1 Network and DALI

2 Network.

The Group Addresses $60 (96) and $61 (97) correspond to DALI_1_BROADCAST

and DALI_1_OFF. These addresses turn all the loads in DALI network A On and Off,

respectively. Similarly the Group Addresses $E0 (224) and $E1 (225) correspond to

DALI_2_BROADCAST and DALI_2_OFF.

To obtain ﬁner control of the network, individual group addresses have to be applied

to the DALI units. Although each DALI unit can contain up to 16 DALI groups, the

simplest programming option is to provide only one group per unit.

This will provide 16 distinct lighting zones. For large commercial spaces this should

be adequate.

23446_F2255-01 5502DAL C-Bus DALI Gateway APPROVED.indd 9 30/08/2011 10:38:17 AM