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BV, Boolean operation
213
02/16 MN05013001Z EN
Contact
The contact of the function block is evaluated in the standard
circuit diagram. A closed contact indicates:
Memory requirement of the function block
The Boolean operation function block requires 40 bytes of
memory plus 4 bytes per constant at the function block
inputs.
Operation of the function block
The function block creates the operation depending on the
operating mode.
AND Boolean operation
OR Boolean operation
Parameters
Function, parameterisation in the function
block
BV..ZE
Result at output QV> is zero
h
If you associate a negative value (e.g. -10
dec
) the CPU will
form the two's complement of the amount.
Example:
-10
dec
= 10000000000000000000000000001010
bin
Twos' complement =
11111111111111111111111111110110
bin
=
FFFFFFF6
hex
Bit 32 is the signed bit and remains as 1.
Value >I1:
13219
dez
= 0011001110100011
bin
Value >I2:
57193
dez
= 1101111101101001
bin
Result QV>:
4897
dez
= 0001001100100001
bin
Value >I1:
13219
dez
= 0011001110100011
bin
Value >I2:
57193
dez
= 1101111101101001
bin
Result QV>:
65515
dez
= 1111111111101011
bin
Содержание easySafety
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