SD Memory Card
Original instructions
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BMXRMS004GPF SD Memory Card
The SD memory card is an option you can use for storing your Hot Standby application. When you power up the CPU, the application in the SD memory card is loaded into flash memory.
The SD memory card slot in both the BMEH58•040 and the BMEH58•040S CPU housing is located behind a door. Use only a BMXRMS004GPF memory card in your CPU. It is a 4 GB, Class 6 card rated for industrial use. Other memory cards, such as those used in the M340 CPUs, are not compatible with the M580 CPUs.
NOTE:
If you insert an incompatible SD memory card, then power up the CPU:
  • The CPU remains in NOCONF state.
  • The CPU BACKUP LED turns ON.
  • The memory card access LED remains OFF.
NOTE: The BMXRMS004GPF memory card is formatted specifically for the M580 CPUs. If you use this card with another CPU or tool, the card may not be recognized.
Memory Card Characteristics
Characteristic
Description
global memory size
4 GB
application backup size
200 MB
data storage size
3.8 GB
write/erase cycles (typical)
100,000
operating temperature range
–40...+85 °C (–40...+185 °F)
file retention time
10 years
memory zone for FTP access
data storage directory only
NOTE: Due to formatting, wearout, and other internal mechanisms, the actual available capacity of the memory card is slightly lower than its global size.
Supported Functions
The SD memory card supports read-only data storage functions.
NOTE: In addition to these read-only data storage functions, you can also read and write to the SD memory card using the following Control Expert project management commands located in the PLC → Project Backup menu:
  • Backup Compare
  • Backup Restore
  • Backup Save
Formatting the Memory Card is Unnecessary
The SD memory card comes pre-formatted from the factory. There is no need to manually format the SD memory card using your PC. If you attempt to format the SD memory card, you may alter the formatted structure of the card, thereby rendering the card unusable.