Omron FQM1-MMA21 2-7Memory Block Diagram, Section, Areas Backed Up by Super Capacitors

Memory Block Diagram Section 2-7

2-7 Memory Block Diagram

Coordinator Module and Motion Control Module memory has the following block configurations.

•I/O Memory Area: Memory accessible from user programs.

•User Memory (UM): User programs and parameter area (See note 1.) The following tables show the backup methods for these memory areas.

•Coordinator Modules

Area	Backup method
User memory	Flash memory
I/O memory area (part of DM Area)	Flash memory

• Motion Control Modules

Area	Backup method
User memory	Flash memory
I/O memory area (part of DM Area)	Super capacitor

Areas Backed Up by Super Capacitors

Data backed up by super capacitors is lost if the super capacitor voltage drops.

Areas Backed Up to Flash Memory

Data backed up to flash memory is not lost if the super capacity voltage drops.

Data transferred from the CX-Programmer or edited online and written to the user program or parameters in the user memory is automatically backed up to flash memory. This means that user memory data (both user program and parameter area data) is not lost if the super capacitor voltage drops.

Coordinator Module/Motion Control Module

Internal RAM

Flash memory

I/O Memory Area I/O bit area Work bit areas Cyclic refresh bit area Sync data link bit area

DM Area

D30000 to D32767 (See note 2.)

User Program

Parameter Area (See note 1.)

Backup

Super capacitor

Note (1) The parameter area stores the Coordinator Module system information, such as the System Setup.

(2)Data transferred to the Coordinator Module, e.g., from the CX-Program- mer, is saved to flash memory. Motion Control Module data is backed up only by the super capacitor.

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