Constant cycle time function in sync mode – Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 User Manual

Page 138

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Cycle Time Settings

Section 5-6

System Setup

Constant Cycle Time Exceeded Flag

Constant Cycle Time Exceeded Error Clear Bit

Constant Cycle Time
Function in Sync
Mode

When in Sync Mode with a Sync Cycle Time set for the Coordinator Module
cycle time (default), and the constant cycle time function is used, the cycle
time for Motion Control Modules will be as described below.

Constant Cycle Time
Function Enabled for
Coordinator Module

The Motion Control Module cycle time is synchronized with the Coordinator
Module constant cycle time, and will therefore be constant.

Constant Cycle Time
Function Enabled for
Motion Control Module

The Motion Control Module cycle time is synchronized with the Coordinator
Module constant cycle time, and gradually is made constant, while the Motion
Control Module's built-in I/O refresh timing is made constant.

The time from when the processing starts in the Motion Control Module until
the I/O refresh will be constant.

Constant cycle time (enabled)

Constant cycle time

Constant cycle time

Real time

Real time

Real time

Tab page

Name

Settings

Default

Timer/Peripheral servicing or
Cycle Time

Cycle Time

0.1 to 100.0 ms,
0.1 ms units

Variable

Name

Address

Description

Constant Cycle Time
Exceeded Flag

A404.05

This flag turns ON when the constant cycle
time function is used and the cycle time
exceeds the constant cycle time set value.

Name

Address

Description

Constant Cycle Time
Exceeded Error
Clear Bit

A509.15

The constant cycle time function can be
enabled again after the cycle time has
exceeded the constant cycle time and A404.05
has turned ON.

Coordinator
Module

Motion
Control
Module

Constant cycle time

Processing

Constant cycle time

Processing

I/O refresh

I/O refresh

Waiting to
synchronize

Waiting to
synchronize

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