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7 OPERATION CONTROL PROGRAMS
F/FS G
7.8.2 OFF (Normally closed contact) : !
Format !(S) Number of basic steps 2
[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
(S)
— — — — — — — — — —
: Usable
[Setting data]
Setting data Description Data type of result
(S) Bit device used in bit conditional expression Logical type (true/false)
[Functions]
(1) True is returned when the bit device specified with (S) in a bit conditional
expression is OFF (0), or false is returned when that bit device is ON (1).
[Errors]
(1) An operation error will occur if:
• (S) is an indirectly specified device and its device No. is outside the range.
[Program examples]
(1) Program which resets M100 when M0 is OFF (0)
RST M100 = !M0
M100
0
!M0
0
(True)