Mitsubishi MELSEC iQ-F FX5 series

332
7 APPLICATION INSTRUCTION
7.3 Program execution control instruction
Disabling the interrupt program with specified priority or lower
DI
This instruction disables the execution of the interrupt program with a priority specified by (s) or lower until the EI instruction is
executed, even if the interrupt cause occurs.
Setting data
■Descriptions, ranges, and data types
■Applicable devices
Processing details
• This instruction disables the execution of the interrupt program of the interrupt pointer number with an interrupt priority
specified by (s) or lower.
Ladder diagram Structured text
ENO:=DI(EN,s);
Operand Description Range Data type Data type (label)
(s) Priority for disabling interrupts 1 to 3 16-bit unsigned binary ANY16
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(s)       
(1) Interrupt-disabled section for the priority 3 or lower
(Interrupt-enabled section for the priority 2 or higher)
(2) Can be executed because of the priority 2.
(3) Cannot be executed because of the priority 3.
(s)
2
3
I No.
I01
I02
I01
I02
DI K3
FEND
IRET
IRET
(3)
(2)
(1)
Interrupt priority setting
Priority
Sequence program
Interrupt Program
Interrupt Program