Function Tables Arranged by Purpose

 

Section 1-7

 

 

 

 

 

Purpose

Operation

Function used

Details

 

 

 

 

 

Synchronizing 3

Make control

Synchronizing

Sync Mode,

5-1 Synchronous Operation between Modules

or more axes

cycle as short

Motion Control

Sync Cycle

Set Sync Mode to Sync and Sync Cycle Time to

 

as possible with

Modules only

Time

 

between 0.1 and 10.0 ms.

 

Modules syn-

 

 

 

 

 

If the Coordinator Module cycle varies or gets

 

chronized

 

 

 

 

 

too long after connecting the FQM1 to peripheral

 

 

 

 

 

 

 

 

devices, Motion Control Module operation can

 

 

 

 

be synchronized to have short control cycles for

 

 

 

 

Motion Control Modules only.

 

 

 

 

The Sync Cycle Time can be set to any value.

 

 

 

 

 

 

 

 

Synchronous

Same as “Synchronous Data Link Bit Area,”

 

 

 

Data Link Bit

above.

 

 

 

Area

 

 

 

 

 

 

 

 

 

Cycle Time

5-1 Synchronous Operation between Modules

 

 

 

(Motion Control

The Coordinator Module's constant cycle time is

 

 

 

Modules)

 

 

 

set as the FQM1 Sync Cycle Time (as above).

 

 

 

 

 

 

 

 

The I/O refresh interval for the Motion Control

 

 

 

 

Module in that Sync Cycle Time is made con-

 

 

 

 

stant and the I/O cycle with external interfaces is

 

 

 

 

also made constant.

 

 

 

 

 

 

 

 

Prohibit System

Same as “Prohibit System Interruption of the

 

 

 

Interruption of

Sync Mode” above.

 

 

 

the Sync Mode

 

 

 

 

 

 

 

Control opera-

Synchronizing

Synchronous

5-4 Synchronous Data Refresh

 

tion using pulse

Motion Control

Data Selection

Information for I/O from different Motion Control

 

and analog data

Modules to

 

 

 

Modules can be stored within Modules and a

 

simultaneously

Coordinator

 

 

 

control loop created.

 

 

Module cycle or

 

 

 

 

Select the type of synchronous data.

 

 

synchronizing

 

 

 

 

• Ladder execution results

 

 

between Motion

 

 

 

Control Mod-

 

High-speed counter PV

 

 

ules only

 

• Pulse output PV

 

 

 

 

 

 

 

 

• Analog input values

 

 

 

 

• Analog output values

 

 

 

 

Built-in I/O inputs

 

 

 

 

 

Fast control

 

Changing to

Sync Mode

5-1 Synchronous Operation between Modules

loops

 

Async Mode

 

Set the Sync Mode to Async.

 

 

 

 

 

 

 

 

Each Module will no longer be synchronized,

 

 

 

 

bus refreshing will stop, and the Motion Control

 

 

 

 

Module overhead time will be minimized.

 

 

 

 

The minimum overhead time for FQM1-MMP21

 

 

 

 

is 0.19 ms.

 

 

 

 

 

20

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Omron FQM1-MMA21, FQM1-CM001, FQM1-MMP21 operation manual Function Tables Arranged by Purpose