Function blocks
165
1SVC 440 795 M1100
The error message “Number of comparison elements
exceeds one of the comparison ranges” is output.
BC01E1 is 1.
Example:
Comparison of marker blocks, range overlap error.
Two marker blocks are to be compared. Block 1 starts at
MW60, Block 2 starts at MW64. Each block is 12 bytes.
Parameters of BC01 function block:
Comparison range 1:
>I1 MW60
Comparison range 2:>I2 MW64
Number of bytes: >NO 12
The error message “Comparison ranges overlap” is output.
BC01E2 is 1.
Example:
Comparison of marker blocks, invalid offset error.
Two marker blocks are to be compared. Block 1 starts at
MW40, block 2 starts at MW54. The block length is defined
by the value of counter C 01QV.
Parameters of BC01 function block:
Comparison range 1:
>I1 MW40
Comparison range 2:>I2 MW54
Number of bytes: >NO C 01QV
The message “The specified offset of the comparison ranges
is outside of the permissible range” is output.
BC01E3 is 1.
h
The comparison is in byte format. MW60 to MW64 is
8 bytes. The number of bytes is 12 bytes.
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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