NAiS FP1

Outline Performs Start operation by comparing two 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 register DT0 with the constant K50. If DT0 = K50, the external output relay Y0
goes ON.
Timer/Counter
EV
Relay
SVWRWYWX
Operand
S1
AAA A
A:
N/A: Not Available
Register
DT
A
IYIX
AA
HK
AA
Constant
Index
modifier
A
Index
register
Available
A
S2
AAA A A A A A A AA
S1
S2
16-bit equivalent constant 16-bit area to be compared
16-bit equivalent constant or 16-bit area to be compared
Ladder Diagram FP Programmer II key operations
Boolean Non-ladder
Address Instruction
0
Y0
=, DT0, K50
S2S1
ST
X-WX
ENT
NOT
DT/Ld
ENT0
(BIN)
K/H
0 WRT
OT
L-WL
AN
Y-WY
0 WRT
5
C
=
0
5
ST =
DT 0
K50
OT Y 0
Availability
Step
5
5
5
5
5
5
C24, C40, C56, and
C72 series
CPU version 2.7 or
later
()
ST =
Word compare: Start equal
ST <>
Word compare: Start equal not
Word compare: Start smaller
Word compare: Start larger
ST >=
Word compare: Start equal or larger
ST <
ST <=
Word compare: Start equal or smaller
5-3. Description of Basic Instructions
127
ST >