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3.1.2
Send DALI command
Description
Command ID 61
Input Param-
eters
Response
Parameters
ET 200SP CM 1xDALI Communication Model Description
Programming Manual, 12/2019, A5E47581955-AA
CM 1xDALI periodically sends DALI commands to query the status of all the devices on
the DALI bus and stores the information in the module. The query period can be set by
module parameters. The program blocks of the CPU have a higher priority when ac-
cessing the DALI bus. If the program blocks of the CPU continuously access the DALI
bus, the background detection might be blocked.
The background detection can detect the following results:
• Whether each DALI device has a short address
• For control gear: the information of basic status, control gear type and extended
status
• For input device: the information of device status, number of instances and type of
each instance
Event message is reported by an instance of the input device. It contains a change or a
defined sequence of changes of its input value. Refer to IEC62386-103 chapter7.2.2 for
the detailed frame format of event messages.
Use this CM command to send one DALI command to the DALI Bus.
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 0
Byte 1
DALI command in little-endian order
For example, if the DALI command is 16#01FE30, Byte 0 to Byte 3 is
set as below.
Byte 0: 16#30
•
Byte 1: 16#FE
•
Byte 2: 16#01
•
Byte 3: 16#00
•
Bit length of the DALI command. Only 16#10 (16) or 16#18 (24) are
valid.
Flag for sending twice.
0: command is sent once to the bus.
•
1: command is sent twice to the bus.
•
Flag for waiting for a response.
0: CM 1xDALI does not wait for the response of command.
•
1: CM 1xDALI waits for the response of command. You can get
•
the response in Response Parameters.
Return code (Page 51)
When the waiting response flag is 1, this byte shows the response
•
of the DALI command.
When the waiting response flag is not 1, this byte shows 16#00.
•
CM 1xDALI command list
3.1 System
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