Functions
6.11 Operation in fieldbus systems
SINAMICS G110D
Operating Instructions, 07/2016, FW V3.63, A5E36768472B AB
179
The other part of the IND word is the parameter index. For tasks involving arrays, this byte
determines the part of the array to be accessed as shown below.
Table 6- 65 IND parameter index
Parameter index
Action
0 ≤ IDX ≤ 254
Access element IDX
IDX = 255
Access entire array
PWE components
The PWE part of the PKW message contains the parameter data. If the current PKW transfer
requires no parameter data the PKE may be of zero length, otherwise it is arranged as one
or more words. Data of length shorter than that available is packed in the PKE as shown in
the figure below. When a complete array is transferred the format below is repeated as many
times as required.
Image 6-37 PWE component structure
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