Delta MH300 Series - Page 970

Chapter 16 PLC Function ApplicationsMH300
16-107
API
FOR
※
S1
S2
Floating point number contact form compare OR*
287–
292
bit device
Word device
16-bit command
－ － － －
32-bit command (9 STEP)
FOR※
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 “FOR=”
as an
example, if the result of comparison is “equal”,
this command activates; but it
does not activate when the result is “unequal”.
 The FOR* 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
287
FOR＝
S
1
＝S
2
S
1
≠ S
2
288
FOR＜
S
1
＜S
2
S
1
≤ S
2
289
FOR＞
S
1
＞S
2
S
1
≥ S
2
290
FOR＜＞
S
1
≠ S
2
S
1
＝S
2
291
FOR＝＞
S
1
≤ S
2
S
1
＜S
2
292
FOR＝＜
S
1
≥ S
2
S
1
＞S
2
 When X2 and M30 are both equal to ON, or the floating point number in register
D100 (D101) is greater than or equal to F1.234, then M60=ON.
FOR>= D100 F1.234
X2
M30
M60