Download Programming Manual SV13/SV22(Motion SFC) Q173DCPU

Transcript
5 OPERATION CONTROL PROGRAMS
F/FS
G
5.11.3 Less than : <
Format
(S1)<(S2)
Number of basic steps
4
[Usable data]
Usable Data
Word device
Setting
data
Bit device
(S1)
(S2)
Constant
Bit
conditional
expression
Comparison
conditional
expression
—
—
—
—
—
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
—
: Usable
[Setting data]
Setting data
(S1)
(S2)
Description
Data type of result
Data which will be compared
Logical type (true/false)
[Functions]
(1) The result is true if the data specified with (S1) is less than 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 D0 or not
#0 < D0
10
#0
(True)
<
D0
20
5 - 61