Siemens SIMATIC ET 200SP CM 1xDALI - Dali_Dev_Query_Addr

Programming
5.4 Addressing function blocks
ET 200SP Communication module CM 1xDALI (6ES7137-6CA00-0BU0)
Manual, 06/2019, A5E46959434-AA
37
5.4.4
DALI_DEV_QUERY_ADDR
Description
DALI_DEV_QUERY_ADDR
is used for querying the address information of the DALI bus.
● When you set the input DET_ALL to 0, the FB queries the address information which is
saved directly in the CM 1xDALI (refer to data flow path 2 (Page 23)).
● When you set the input DET_ALL to 1, the FB detects all devices on the bus and then
returns the latest address information (refer to data flow path 4 and data flow path 2
(Page 23)).
CM 1xDALI cyclic queries all the address status of DALI devices on the bus through the
background detection (Page 21), and detects the following results:
● Whether each DALI device has a short address
● For control gear: the information of basic status, control gear type and EXT_STATUS
● For sensor: the information of device status, NUM_OF_INST and type of each instance
These results are saved in the CM 1xDALI (refer to data flow path 4 (Page 23)).
Note
The output resets, only if both the CANCEL and
QUERY are set to 0.