User`s manual

140
(4) Timing of interrupt request
The following figure shows the timing of the interrupt signal output in case of the interrupt factor SI No.8 or 9.
The interrupt request is made to the CPU module just after the periodic pulse count values are updated.
The interrupt request to the CPU module is made with a delay less than 1ms from the end of the cycle time, since the update
of the periodic pulse count values coincide with the internal control cycle (1ms).
T *1 T *1 T *1 T *1
Interrupt
program
Interrupt
program
Interrupt
program
CPU module
internal
processing
Sequence program
of the CPU module
Interrupt request
Interrupt request clear
CH1 Selected counter
function start command (Y07)
or
function input terminal (FUNC1)
*1 T = Cycle time