Siemens SIMATIC ET 200SP CM 1xDALI - Compatibility

CM 1xDALI communication model
2.3 Sending/receiving CM commands
ET 200SP CM 1xDALI Communication Model Description
Programming Manual, 12/2019, A5E47581955-AA
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Example
The following example shows how to poll the status and event of module, and then query the
level of a control gear.
1. Input data over Process image to poll the status and event information
Byte
Value
Description
0
16#01
Command index: it starts with 1 and cannot be set to 0.
1
16#A0
Version: it must be 16#A0.
2 16#F9 Checksum: the total length of this command is 5 bytes, so the calculation is:
(byte 3 + byte 4 + byte 5) XOR 16#FF = 16#F9.
3 16#05 Length: total length of this command. Byte 0 is the command index and is not
counted in.
4 16#00 Bit 7: always 0 from CPU
Bit 6 to 0: Command ID. 0 is “poll status and event of CM 1xDALI”.
5
16#01
Input parameters of this command. 1 is for querying status and events.
6
16#00
Not used in this command
7
16#00
8
16#00
9
16#00
10
16#00
11
16#00
12
16#00
13
16#00
14
16#00
15
16#00