Table of Contents
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Basic Instructions
STF =
STF <>
STF >
STF >=
STF <
STF <=
Outline
Performs start operation by comparing two single precision real number
data items with the comparison condition. The contact goes on or off
depending on the result of the comparison.
Program example
0
10
S1
S2
Operands
Relay
Operand
Operand
WX WY WR WL
S1
A
A
S2
A
A
(*1) This cannot be used with the FPΣ/FP−X.
(*2) I0 to ID.
2 − 140
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Floating point real number data
comparison: Start equal
Floating point real number data
comparison: Start equal not
Floating point real number data
comparison: Start larger
Floating point real number data
comparison: Start equal or larger
Floating point real number data
comparison: Start smaller
Floating point real number data
comparison: Start equal or smaller
Ladder Diagram
Ladder Diagram
S1
S2
F =, DT 0, DT 100
F >, DT 0, DT 100
S1
S2
Real number data (2 words) or lower 16-bit area of 32-bit data to be compared
Real number data (2 words) or lower 16-bit area of 32-bit data to be compared
Timer/Counter
SV
EV
A
A
A
A
A
A
A
A
14
Y30
Y31
Index
Register
register
FL
DT
LD
I (*2)
(*1)
A
A
A
A
A
A
A
A
* Index modification of a real number is not possible.
Availability
FP0R
FP−X Ver 1.10 or more
FPΣ 32k
Boolean
Address
Instruction
0
STF =
DT
DT
9
OT
Y
10
STF >
DT
DT
19
OT
Y
Constant
Index
Index
Integer
Integer
modifier
K
H
f
A
A
A
A*
A
A
A
A*
A:
Available
0
100
30
0
100
31
device
A
A
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