Siemens simatic ET 200MP Handmatig - Pagina 30

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Siemens simatic ET 200MP Handmatig

Parameter data record 128

Parameter assignment in the user program
You can change the parameters of the module in RUN.
• The parameters are transferred to the technology module with the WRREC instruction via
data record 128. The parameters set with STEP 7 are not changed in the CPU by this
action.
• The technology module then checks the parameters for plausibility.
After a startup, the parameters set with STEP 7 are valid again.
Output parameters: STATUS
If errors occur when transferring parameters with the WRREC instruction, the module
continues operation with the original parameter assignment. In this case, the STATUS output
parameter contains a corresponding error code.
You can find the description of the instruction "WRREC: Write data record" and the error codes
in the information system of the TIA Portal.
Data record structure
The following table shows the structure of the data record 128.
Table A- 1
Parameter data record 128
Bit →
7
Byte
0
Reserved
1)
1
2
3
4
5
Reserved
1)
6
7
8
9
10
28
6
5
1
Major version
Number of following parameter structures = 5
Number of following parameter blocks = 1
Length of the following parameter blocks in bytes = 2
Reserved
Reserved
1)
1)
Number of following parameter blocks = 1
Length of the following parameter blocks in bytes = 2
Number of following parameter blocks = 1
4
3
ID = 0 (common)
Reserved
Reserved
1)
1)
ID = 1 (SD)
Reserved
1)
2
1
Minor version
Reserved
Reserved
1)
1)
Technology Module TM NPU
Equipment Manual, 09/2020, A5E46384784-AA
A
0
Diagnostics:
No load
voltage L+:
0 = Disabled
1 = Enabled