Delta MH300 Series - Page 969

Chapter 16 PLC Function ApplicationsMH300
16-106
API
FAND
※
S1
S2
Floating point number contact form compare AND*
281–
286
bit device
Word device
16-bit command
－ － － －
32-bit command (9 STEP)
FAND※
Continuous
execution type
－
－
Flag signal: none
X
Y
M
K
H
KnX
KnY
KnM
T
C
D
S1
＊ ＊ ＊
S2
＊ ＊ ＊
Notes on operand usage:
※
,
：
, =, >, <, <>, ≤, ≥
Refer to the function specifications table for each device in series
for the scope of device usage.
 S
1
: data source device 1. S
2
: data source device 2.
 This command compares the contents of S
1
and S
2
. Taking “FAND=”
as an
example, if the result of comparison is “equal”,
this command activates; but it
does not activate when the result is “unequal”.
 The FAND* command can directly input floating point numbers
(for instance:
F1.2) to the S
1
and S
2
operands, or store floating point numbers in register D for
use in operations.
 You can use this command directly to connect with the busbar.
API No. 32-bit commands
Conditions for
activation
Conditions for
inactivation
281
FAND＝
S
1
＝S
2
S
1
≠ S
2
282
FAND＞
S
1
＜S
2
S
1
≤ S
2
283
FAND＜
S
1
＞S
2
S
1
≥ S
2
284
FAND＜＞
S
1
≠ S
2
S
1
＝S
2
285
FAND＜＝
S
1
≤ S
2
S
1
＜S
2
286
FAND＞＝
S
1
≥ S
2
S
1
＞S
2
 When X1=OFF, and the floating point number in register D100 (D101) is not equal
to F1.2, then Y21=ON and remains in that state.
FAND<>
F1.2 D0
SET Y21
X1