Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 User Manual

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Programming

Appendix A

Motion Control Module I/O Response Time

Minimum I/O Response Time (General-purpose I/O 0 to 3)
The I/O response time is shortest when the input refresh is executed immediately after a Motion Control Mod-
ule detects an input, as shown in the figure below.

The minimum I/O response time is the total of the Input ON delay, the Cycle time, and the Output ON delay.

• Cyclic Output Refresh Time

Minimum I/O response time = 0.03 + 0.194 + 0.1 = 0.324 (ms)

Note Input interrupts and the IORF(097) instruction can be used to obtain a faster response (100

µs typical).

Maximum I/O Response Time
The I/O response time is longest when a Motion Control Module detects an input immediately after input
refresh has been executed, as shown in the figure below. The response time will be one cycle longer than for
the minimum I/O response time.

The maximum I/O response time is the total of the Input ON delay, (the Cycle time

× 2), and the Output ON

delay.

• Cyclic Output Refresh Time

Maximum I/O response time = 0.03 + 0.388 + 0.1 = 0.518 (ms)

Input contact

Input bit

Internal processing

Input ON delay

Cycle time

Cyclic output refresh

Output ON delay

I/O refresh

Overseeing processing

Output contact

Instruction execution

Instruction execution

Input ON delay

Output ON delay

I/O refresh

Cycle time

Instruction execution

Instruction execution

Instruction execution

Input
contact

Input bit

Internal processing

Cyclic output refresh

Overseeing processing

Output contact

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