Disabling The Interrupt Program With Specified Priority Or Lower - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

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.
Ladder diagram
(s)
FBD/LD
EN ENO
s
("DI_1" enters .)
Setting data
■Descriptions, ranges, and data types
Operand Description
(s) Priority for disabling interrupts
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L, SM,
F, B, SB, S
(s) 
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.
Interrupt priority setting
Priority
I No.
I01 2
I02 3
I01
I02
A: Sequence program
B: Interrupt Program
Word
T, ST, C, D, W, U\G
SD, SW, R
 
DI K3
A
FEND
B
IRET
B
IRET
Structured text
ENO:=DI_1(EN,s);
Range Data type
1 to 3 16-bit unsigned binary

Bit
 Bit
Double word Indirect
specification
Z LC LZ
   
(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.
(1)
(3): Cannot be executed because of the priority 3.
(2)
(3)
8.3 Program Execution Control Instruction
Data type (label)
ANY16
BOOL
BOOL
Constant Others
K, H E $
   
8 APPLICATION INSTRUCTION
8
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