FB_DALI102ChangeAddresses

This function block can be used to change the short addresses of several DALI control gears.

A list of the DALI control gears for which the short address is to be changed is transferred in the array aChangeAddressList of type ST_DALIChangeAddressList. The list has 64 entries from 0 to 63. Each entry contains a variable nOldAddress and nNewAddress with which the address assignment is parameterized. The end of the list is programmed with a 255 entry at nOldAddress, so that the whole list does not necessarily have to be filled in. If this entry is missing, however, then all entries are accepted. When the function block is started (positive edge on bStart), the list end is first determined on the basis of the described entry and afterwards the valid list range is examined for the following false entries:

• Address entries > 63
• Double address entry on the source page nOldAddress
• Double address entry on the target page nNewAddress (leads to double assignment of an address and, hence, to errors)

The function block then uses the short addresses to determine the internal long addresses of the DALI devices and enters them in the nRandomAddress parameter of the list.

If an error occurs during queries or during reprogramming, this leads to an error entry for the respective device in the list element nErrors (see ST_DALIChangeAddressList).

The individual bits in the list element nErrors have the following meaning:

 Inputs

VAR_INPUT
  bStart              : BOOL;
  nOptions            : DWORD := 0;
END_VAR

 Inputs/outputs

VAR_IN_OUT
  aChangeAddressList    : ARRAY [0..63] OF ST_DALIChangeAddressList;
END_VAR

 Outputs

VAR_OUTPUT
  bError                  : BOOL;
  ipResultMessage         : I_TcMessage;
  bBusy                   : BOOL;
END_VAR

 Properties

Requirements