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7 OPERATION CONTROL PROGRAMS
F/FS G
7.13.2 Event task disable : DI
Format DI Number of basic steps 1
[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
— — — — — — — — — — — —
: Usable
[Setting data]
There are no setting data.
[Functions]
(1) The execution of an event task is disabled.
(2) If an external interrupt or PLC interrupt occurs after execution of the DI instruction,
the corresponding event task is executed once at the execution of the EI
instruction. (If two or more external interrupts or PLC interrupts occur during DI,
the corresponding event task is executed only once at the execution of the EI
instruction.)
(3) During DI, a fixed-cycle event task is not executed.
(4) The execution of an NMI task cannot be disabled.
(5) The DI status is established at power-on or when a reset is made with the
RESET/L.CLR switch.
[Errors]
(1) An operation error will occur if:
• This instruction is used with other than a normal task.
[Program examples]
(1) Program which disables the execution of an event task.
DI