The memory of M221 cannot be expanded. The M221 has the following types of memory:
- RAM: 512 Kbyte, of which 256 Kbyte available for the application. It is used to execute the application and contains data
- Flash: 1.5 Mbyte, of which 256 Kbyte is used to backup the user application and data in case of power outage. It is used to save the application
The SD card is only used to transfer the application or update the firmware.
There are 1024 %M memory bit objects and 8000 %MW 16-bit words.
If this FAQ did not solve your issue, you can chat with us at chat with us or e-mail us at customer.services@se.com to create a case with our Technical Support Team.
If you are not located in North America, please contact your local Customer Care Center for assistance:
Released for:Schneider Electric Egypt and North East Africa
