Siemens SIMATIC S5-115U, Руководство пользователя

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Integral Blocks S5-115U Manual
Divider: 16 -FB243-
Use function block FB243 to divide one fixed-point binary number (16 bits) by another. The result
(quotient and remainder) is represented by two fixed-point binary numbers (16 bits each). The
divisor and the result are also scanned for zero. An eight-bit number must be transferred to a
16-bit word prior to division.
Call and Parameter Assignment
Parameter Type Data
Type
Contents
Z1
Z2
OV
I
I
Q
W
W
Bi
- 32768 to+32767
- 32768 to+32767
"1", if
overflow
Meaning
Dividend
Divisor
Overflow
indicator
STL
: JU FB 243
Name : DIV : 16
Z1 :
Z2 :
OV :
FEH :
Z3=0 :
Z4=0 :
Z3 :
Z4 :
FEH Q Bi
"1" for division
by zero
Z3=0 Q Bi
"1": quotient
is zero
Scan
for zero
Z4=0
Z3
Q
Q
Q
Bi
W
W
"1": remainder
is zero
16 bits
16 bits
Scan
for zero
Quotient
Remainder
Z4
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11-4
EWA 4NEB 811 6130-02b