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7 OPERATION CONTROL PROGRAMS
F/FS G
7.11.4 Less than or equal to: <=
Format (S1)<=(S2) Number of basic steps 4
[Usable data]
Usable Data
Word device Constant
Setting
data
Bit device
16-bit
integer
type
32-bit
integer
type (L)
64-bit
floating
point
type (F)
Coasting
timer
16-bit
integer
type (K/H)
32-bit
integer type
(K/H, L)
64-bit
floating
point
type (K)
Calculation
expression
Bit
conditional
expression
Comparison
conditional
expression
(S1) —
— —
(S2) —
— —
: Usable
[Setting data]
Setting data Description Data type of result
(S1)
(S2)
Data which will be compared Logical type (true/false)
[Functions]
(1) The result is true if the data specified with (S1) is less than or equal to the data
specified with (S2).
(2) When (S1) and (S2) differ in data type, the data of the smaller data type is
converted into that of the greater type before comparison is performed.
[Errors]
(1) An operation error will occur if:
• (S1) or (S2) is an indirectly specified device and its device No. is outside the
range.
[Program examples]
(1) Program which compares whether #0 is less than or equal to D0 or not
#0 <= D0
(True)
#0
20
10
<=
D0