Rockwell-automation 1336T Function Block Prog. Manual, Series A/B Manuel d'utilisateur Page 97

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Function Block Library 4–35
1336 FORCE — 5.9 August 1995
MULTIPLY
BLOCK TYPE 28
decimal
1C
hexadecimal
Multiply
ID = Exec =
Out MSW
NODE 0
In 1
NODE 1
In 2
NODE 3
Out LSW
NODE 2
DEFINITION
Multiplies two 16 bit inputs. This block calculates a 32 bit result that
is stored in two words Out LSW and Out MSW.
INPUTS
In 1 — A signed input integer.
In 2 — A signed input integer.
OUTPUTS
Out LSW — A least significant result word value representing bits
0–15 of a 32 bit output value.
Out MSW — A most significant result word value representing bits
16–31 of a 32 bit output value.
FUNCTION
Out LSW, Out MSW = In 1 × In 2.
PARAMETERS DATA TYPE LINKABLE DEFAULT VALUE RANGE
In 1 Signed Integer Yes 0
±32767
In 2 Signed Integer Yes 0
±32767
Out LSW Unsigned Integer No 0 to 65535
Out MSW Signed Integer No
±32767
DOUBLE WORD VALUES
Both the Most Significant Word and the Least Significant Word are
interpreted together by the function algorithm as one word when
using 32 bit values. The range of a double word value is
± 2,147,483,647. The range of the more common, signed single-word
16 bit node is ±32767.
31
16 15
0
Most Significant Word Least Significant Word
Node 3
Node 2
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