Crestron and KNX: select group addresses and objects

In Create with KNX addresses mode, a Crestron configuration in Link’nX is built from the group addresses of the uploaded ETS file: up to 250 addresses, each with an object number and communication flags to be matched with the Crestron programming.

Intended for installers and administrators, at creation or after the Edit pencil of a configuration created this way.

Before you start

• The parameters of the Crestron declaration are filled in.
• The right ETS file is uploaded in KNX. A filter saved in KNX Configuration does not replace the boxes of the Crestron window.
• The addresses belong to the DPT families 1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 and 18, with the subtypes suited to the programming. The table offers no field to correct a DPT. For an address without a known DPT, a DPT 3, another family or a doubt about compatibility, contact support before saving the selection.

Choose the KNX addresses

1. Click Select KNX addresses. The window shows Max: N/250, with the number of addresses selected.
2. Use Filter… to search for part of the name or of the address. Check Activate case sensitivity to distinguish uppercase from lowercase, which is ignored at first.
3. Check the addresses you want. Select all visible adds the displayed results; Unselect all visible removes them. Addresses hidden by the search remain selected: clear the search to check everything.
4. Stay at 250 addresses maximum. After More than 250 addresses selected!, close the warning and check the selection again: the excess addresses are not all kept.
5. Click Save in the window to carry the selection over into the table of the form.

Check the object numbers and flags

The table shows the columns Object, Name, Address and Flags.

• Object: an added address receives the lowest free number, starting from 1. If the Crestron programming expects another number, change it in its cell: a whole number from 1 to 255, different for each row. Check each match between object number and KNX address with the Crestron programming.
• Flags: Communication (C), Read (R), Write (W), Transmit (T) and Update (U). When an address is added, C, W and T are checked; R and U are not. Apply only the choices established for your programming. To determine their effect on the exchanges of your installation, have this choice validated by support before changing them.

Remove an address

Reopen Select KNX addresses, uncheck the address and click Save. The addresses kept retain their Object number and their flags; an address added afterwards takes the lowest free number, possibly that of the removed address. Do not use a removal followed by an addition as a troubleshooting method without then checking these matches.

Save the configuration

1. Make sure that the Crestron programming matches the resulting table.
2. Click the floppy disk at the bottom right of the main form. Save in the address window does not replace this final validation.
3. Wait for Success! and the return to the list.

Check the result

Reopen the configuration with Edit and review each row against the Crestron programming, then test a command from it.

Troubleshooting

• The address list is empty: check the ETS upload, then reopen the selection.
• Duplicate object numbers: … or The object number must be a whole number between 1 and 255: correct the flagged cells. The floppy disk stays disabled until then.

For an unavailable button, an address that cannot be found or an uncertain result after saving, follow the Crestron troubleshooting. If the problem persists, contact support@can-nx.com.