Omron SYSMAC CP CP1E-N@@D@-@ - Manual (Page 279)

2-243
2 Instructions
CP1E CPU Unit Instructions Reference Manual(W483)
F
loat
ing
-p
o
int
Math
In
stru
ctio
ns
2
=F
, <>F
,
, <=
F
, >F
, >=F
Precautions
• Input comparison instructions cannot be used as right-hand instructions, i.e., another instruction
must be used between them and the right bus bar.
Sample program
When CIO 0.00 is ON in the following example, the floating point data in D101, D100 is compared to the
floating point data in D201, D200. If the content of D101, D100 is less than that of D201, D200, execu-
tion proceeds to the next line and CIO 50.00 is turned ON. If the content of D101, D100 is not less than
that of D201, D200, execution does not proceed to the next instruction line.
SINGLE FLOATING LESS THAN Comparison (
334 LD>=F LOAD FLOATING GREATER THAN OR EQUAL True if
S
1
+1, S
1
≥
S
2
+1, S
2
AND>=F AND FLOATING GREATER THAN OR EQUAL
OR>=F OR FLOATING GREATER THAN OR EQUAL
Code Mnemonic Name Function
D100
D200
0.00
50.00
2.3> −3.5
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0
15 0
0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1
15 0
S1: D100
S1+1:D101 S2: D200
S2+1:D201
4294967296<5566555656
1 1 1 0 0 1 0 1 0 1 1 1 0 0 1 1
0 1 0 0 1 1 1 1 1 0 1 0 0 1 0 1
15
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 1 0 0 1 1 1 1 1 0 0 0 0 0 0 0
15 0
S1: D100
S1+1:D101 S2: D200
S2+1:D201
Does not yield an ON condition.
Decimal value: 2.3 Decimal value: −3.5
Decimal value: 5,566,555,656 Decimal value: 4,294,967,296
Yields an ON condition.