Maple Systems MAPware-7000 - Manual (Page 142)

MAPware-7000 Ladder Logic Guide 134
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.