Siemens Micromaster Profibus - Parameter P0927, Modification Source for Parameters

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PROFIBUS Optional Board Operating instructions
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This parameter can be set to define the sources of parameter modifications.
Bit 0 PROFIBUS-DP 0: No
1: Yes
Bit 1 BOP 0: No
1: Yes
Bit 2 PC-converter assembly set
(USS on the BOP interface)
0: No
1: Yes
Bit 3
Local RS-485 interface (terminal
14/15 and USS)
0: No
1: Yes
The default setting for all bits is 1, i.e. parameters can be modified from all sources.