Performance Information; A-4-1 Interrupt Input Response Time - Omron SYSMAC CJ Series User Manual

Appendices
A-4

Performance Information

Precautions for Correct Use Precautions for Correct Use
The actual performance depends on a variety of factors that affect CPU Unit operation such as
the function's operating conditions, user program complexity, and cycle time. Use the perfor-
mance specifications as guidelines, not absolute values.
A-4-1 Interrupt Input Response Time
The interrupt response time is the time it takes between an OFF-to-ON signal (or ON-to-OFF signal for
down-differentiation) at the interrupt input terminal until the corresponding I/O interrupt task is actually
executed. The total response time is the sum of the hardware response time and software response
time.
Reading input
terminal
Interrupt task execution
Interrupt response time = Hardware interrupt response time + Software interrupt response time
Hardware Interrupt Response Time
Edge direction
Rising edge
Falling edge
Software Interrupt Response Time
Interrupt type
Interrupt inputs in Direct
Mode
Interrupt inputs in Counter
Mode
A-10
Input
Hardware interrupt response time
Software interrupt response time
Interrupt input response time
Interrupt response time
30 µs
150 µs
Interrupt response time
33 µs min.
34 µs min.
CJ2M CPU Unit Pulse I/O Module User's Manual