Appendix D

Memory Card Backup Functions

The DeviceNet Unit stores the following setup data in the internal non-volatile memory (EEPROM).

Master scan lists

Slave scan lists

Message monitoring timer lists

Communications cycle time settings

Master/Slave functions enabled/disabled settings

Note Backup is possible only when scan lists are enabled.

With the CS1 DeviceNet Unit, all this setup data can be backed up to and restored from a Memory Card mounted to the CPU Unit (see note).

Note The data can be backed up to a Memory Card only. It cannot be backed up to a EM file.

If all setup data for a DeviceNet Unit that starts normally is saved on a Memory Card, that data can be read and used when replacing DeviceNet Units, making the replacement process smooth.

Device parameter files (.dvf files) created using the Configurator can be saved from the computer to the Mem- ory Card and can be restored to the DeviceNet Unit mounted to the CPU Unit. This means that setup data cre- ated using the Configurator (scan lists and other parameters) can be downloaded to DeviceNet Units simply by taking the Memory Card to site.

DeviceNet Unit

CPU Unit

Unit Setup File Backup Switch

 

 

 

Unit Setup File Restore Switch

All setup

 

Configurator (computer)

 

Memory Card

data

 

 

 

 

Backup

Save file

 

Restore

Load file

 

 

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Omron CJ1W-DRM21, CS1W-DRM21 operation manual Appendix D