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BC, data block comparator
195
02/16 MN05013001Z EN
Example 6: Comparison of marker blocks, invalid
offset error.
Two marker blocks are to be compared. Block 1 starts at
MW40, block 2 at MW54. The block length is determined by
the value of counter C 01QV.
• Parameters of function block BC01:
– Comparison range 1: >I1 MW40
– Comparison range 2: >I2 MW54
– Number of bytes: >NO C 01QV
The error message "The specified offset of the comparison
ranges is outside of the permissible range" is output.
BC01E3 is 1.
h
The value of C 01QV is 1024. This value is too big. The
value at >NO can be between 1 and +383.
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