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Standard function blocks
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02/16 MN05013001Z EN
Contacts
The contacts of the function block are evaluated in the
standard circuit diagram. A closed contact indicates:
Memory requirement
The transfer data block function block requires 48 bytes of
memory plus 4 bytes per constant at the function block
inputs.
Operation of the function block
The transfer data block function block has two operating
modes.
INI mode, initialise marker ranges
There is one source range and one destination range. The
source range is specified at >I1. The length of the source
range is one byte. The destination range is specified at >I2.
The length of the destination range is specified by the
number of bytes at the >NO input.
The content of the source range is transferred to the marker
bytes in the destination range.
The function block carries out a transfer on a rising edge at
coil T_ (Trigger).
The error contacts E1, E2 and E3 are evaluated regardless of
the status of the trigger.
Parameters
Function
BT..E1
Exceeding the source or destination range
BT..E2
Overlapping of source and destination range
BT..E3
Invalid offset
h
No data blocks are initialised or copied if an error occurs.
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