Chapter 5 CPU Module
5-
１３
1) parameter setting
2) Time driven interrupt
TDI occurs periodically with the constant interval assigned in parameter setting. The interrupt routine of TDI starts with the TDINT
instruction and ends with the IRET instruction.
When multiple interrupt factors occur simultaneously, interrupt routines are executed according to the priority given to the each interrupt.
If an interrupt factor has higher priority occurs while other interrupt of lower priority is executing, the interrupt routine of lower priority will
be stopped and the interrupt of higher priority will be executed first. Otherwise, two interrupts are executed consequently.
3)
Process driven interrupt
Available PDI is P000 ~ P007 (8 points) assigned in parameter setting.
PDI occurs when the input status of P000 ~ P007 is changed from Off to On or from On to Off.
REMARK
Total available interrupt points
Time driven int process driven interrupt
≤
8 points
Interrupt signal is ignored when self-interrupt occurs more than 2 times during interrupt processing is executing.
Interrupt executing time
Interrupt signal (ex : rising edge)
ignored
