Availability
Step
9
9
9
9
9
9
C24, C40, C56, and
C72 series
CPU version 2.7 or
later
(
)
Outline
Performs Start operation by comparing two double word data in the
comparative conditions. The contact goes ON/OFF depending on the result
of the comparison.
Program example
■
Operands
■
Explanation of example
• Compares the contents of data registers (DT1, DT0) with the constant K50. If (DT1, DT0) = K50, the external
output relay Y0 goes ON.
Timer/Counter
EV
Relay
SV
WR
WY
WX
Operand
S1
A
A
A
A
A:
N/A: Not Available
Register
DT
A
IY
IX
A
N/A
H
K
A
A
Constant
Index
modifier
A
Index
register
Available
A
S2
A
A
A
A
A
A
N/A
A
A
A
A
STD =
Double word compare:
Start equal
STD <>
Double word compare:
Start equal not
Double word compare:
Start smaller
Double word compare:
Start larger
STD >=
Double word compare:
Start equal or larger
STD <
STD <=
Double word compare:
Start equal or smaller
5-3. Description of Basic Instructions
133
STD >
S1
S2
32-bit equivalent constant or lower 16-bit area of 32-bit data to be compared
32-bit equivalent constant or lower 16-bit area of 32-bit data to be compared
Ladder Diagram
FP Programmer
II
key operations
Boolean Non-ladder
Address Instruction
0
Y0
D =, DT0, K50
S1
S2
ST
X-WX
C
ENT
D
OT
L-WL
AN
Y-WY
0
WRT
NOT
DT/Ld
ENT
0
(BIN)
K/H
0
WRT
5
D
=
0
9
STD =
DT
0
K
50
OT Y
0
Summary of Contents for FP1
Page 1: ...PROGRAMMABLE CONTROLLER FP1 is a global brand name of Matsushita Electric Works Hardware ...
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