MVI56-PDPMV1 ♦ ControlLogix Platform
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PROFIBUS DPV1 Master
User Manual
Page 39 of 251
ProSoft Technology, Inc.
Then, the
PDPMV1_C
ONNECTION
_I
NPUT
user-defined data type must have an
array size of
250
words, as shown in the following illustration.
And, the
PDPMV1_C
ONNECTION
_O
UTPUT
user-defined data type must have an
array size of
248
words, as shown in the following illustration.
Note:
Each backplane block contains certain registers reserved for general purposes (non-
PROFIBUS data transfer). The backplane input block reserves 8 words for general purposes and
the backplane output block reserves 5 words. You must subtract these reserved words from the
total I/O block size to calculate the actual number of PROFIBUS I/O data per backplane I/O block
and where the break points between data blocks will be in the PROFIBUS data arrays.
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