Filter
Top Products
142
Input Interrupts Section 7-3
The EI(694) instruction does not enable all interrupts. If an interrupt was
masked before all interrupts were disabled, that interrupt will still be masked
after the prohibition on all interrupts is cleared.
Clearing Recorded
Interrupts
The CLI(691) instruction clears the interrupt event information recorded while
all interrupts were disabled by the DI(802) instruction.
7-3 Input Interrupts
7-3-1 Applicable Models
7-3-2 Overview of the Input Interrupt Function
Contact inputs 0 to 3 in the Motion Control Modules can be used for external
interrupt inputs. These inputs correspond to CIO 0000.00 to CIO 0000.03.
The interrupt tasks corresponding to these inputs are fixed and cannot be
changed. Contact inputs 0 to 3 call interrupt tasks 000 to 003, respectively.
Note If the input interrupts are not being used, interrupt tasks 000 to 003 can be
used as interrupt tasks for other interrupt functions.
7-3-3 Interrupt Modes
There are two modes that can be used for the input interrupts. Each of the
four interrupt inputs can be set to either of these modes.
• Input Interrupt Mode:
An interrupt is generated when the external input turns ON, OFF, or both.
• Counter Mode:
External signals are counted, decrementing the PV from an SV, and an
interrupt is generated when the PV equals 0.
The interrupt mode for each interrupt input is set using the MSKS(690)
instruction.
7-3-4 Input Interrupt Specifications
Input Interrupt Mode
Model number Functions
FQM1-MMP21 Motion Control Module for Pulse I/O
FQM1-MMA21 Motion Control Module for Analog I/O
Item Specification
Interrupt condition Contact inputs 0 to 3 (CIO 0000.00 to CIO 0000.03) turn ON,
OFF, or both
Note Set the interrupt condition in the System Setup.
Interrupt task num-
bers
CIO 0000.00 to CIO 0000.03: Interrupt tasks 000 to 003
Response time 0.1 ms for ON interrupt condition
The response time is measured from when interrupt condition
is met until interrupt task execution starts.
Signal pulse width ON: 0.1 ms min., OFF: 0.2 ms min.