Basic Instructions
2
−
138
Outline
Performs start operation by comparing two double word data items with
the comparison condition. The contact goes on or off depending on the
result of the comparison.
13
Program example
Ladder Diagram
Boolean
Ladder Diagram
Address
Instruction
D =, DT 0, DT 100
Y30
0
S1
S2
Y31
10
S1
S2
D >, DT 0, DT 100
0
9
10
19
STD =
DT
0
DT
100
OT
Y
30
STD >
DT
0
DT
100
OT
Y
31
S1
32-bit equivalent constant or lower 16-bit area of 32-bit data to be compared
S2
32-bit equivalent constant or lower 16-bit area of 32-bit data to be compared
Operands
Operand
Relay
Timer/Counter
Register
Index
register
Constant
Index
Operand
WX WY WR WL
(
*
1)
SV
EV
DT
LD
(
*
1)
FL
(
*
2)
IX
(
*
3)
IY
(
*
4)
K
H
Index
modifier
S1
A
A
A
A
A
A
A
A
A
A
N/A
A
A
A
S2
A
A
A
A
A
A
A
A
A
A
N/A
A
A
A
(
*
1) This cannot be used with the FP0/FP
−
e.
(
*
2) This cannot be used with the FP0/FP
−
e/FP
Σ
/FP
−
X/FP0R.
(
*
3) With the FP
Σ
, FP
−
X, FP0R, FP2, FP2SH and FP10SH, this is I0 to IC.
(
*
4) With the FP
Σ
, FP
−
X, FP0R, FP2, FP2SH and FP10SH, this is ID.
STD =
STD <>
STD >
STD >=
STD <
STD <=
32
−
bit data comparison:
Start equal
32
−
bit data comparison:
Start equal not
32
−
bit data comparison:
Start larger
32
−
bit data comparison:
Start equal or larger
32
−
bit data comparison:
Start smaller
32
−
bit data comparison:
Start equal or smaller
A: Available
N/A: Not Available
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
Summary of Contents for FP-X
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