Data transfer within the PLC
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Part III FP Instructions
Example
In this example, the same POU header is used for all programming languages. For an example
using IL (instruction list), please refer to the online help.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
Body
When the variable start is set to TRUE, the function is carried out. It exchanges the data of ARRAY
data_field_1 (from the 2
nd
to the 5
th
element) with the data of ARRAY data_field_2 (from the 3
rd
element on).
LD
ST
When programming with structured text, enter the following:
IF start THEN
F18_BXCH(
d1_Start=> d1[2], d2_End=> d1[4], d3_Start=> d2[1]);
END_IF;