ABB FPBA-01 PROFIBUS DP, Руководство пользователя

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Communication protocol 157
Subindex Addresses
• the first array
element of the
parameter or
• the beginning of a
string access or
• the text array or
• the description
element that is
being accessed.
0…65535 Word
Format
1)
See the table on page
159 .
See the table on
page
159 .
Byte
Number of
Values
1)
Number of values
following 0…234 Byte
Values
1)
The values of the
request. In case of an
odd number of bytes,
a zero byte is
appended to ensure
the word structure of
the telegram. – See the
Format
field.
1)
Only if Request ID is 02h (Change Parameter). The Format, Number of
Values and Values fields are repeated for other parameters.
Field(s) Description Range Byte/Word