Instruction 87- disable interrupt – Maple Systems MAPware-7000 User Manual
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MAPware-7000 Ladder Logic Guide
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1010-1041 rev. 00
Instruction 87- Disable Interrupt
Expression:
Space Requirement: 1 line x 1 column Location Requirement: Middle, Right rail
Function:
When the input is ON, this instruction disables the execution of user designated interrupt
operation, i.e. timer interrupt program and I/O interrupt programs.
Execution Condition:
Input
Operation
Output
OFF
No execution
OFF
ON
Execution
ON
Operand:
No operand is required.
Example:
In the above example, the interrupt is disabled when B000 is ON, and it is enabled when B000 is
OFF.
Note
-
Refer to the Enable Interrupt (EI) instruction.
-
If an interrupt request occurs when the interrupt is disabled, the interrupt is kept
waiting and it will be executed just after the EI instruction is executed.
-
The Disable Interrupt (DI) instruction can be used only in the main program.