SD Memory Card Functions for AC500 V2 ProductsΒΆ

Summary

AC500 Processor Modules contain a flash memory card of the type SD Memory Card as external storage device which is accessed by the CPU like a floppy disk drive. The SD memory card is used to transfer data between a commercially available PC with SD memory card interface and the AC500 PLC.

Attention

:strong:Removal of the SD memory card

Do not remove the SD memory card during access. Remove only when the RUN LED does not blink. Otherwise the SD memory card and/or files on it might get corrupted and/or normal PLC operation might be disturbed.

The SD memory card can be used to:

  • update the AC500 CPU processor firmware
  • update the CPU boot code
  • update the display controller firmware (as of version V2.0)
  • update of the RTC_Batt module (eCo)
  • update of the onboard I/O firmware (eCo)
  • update the Communication Module firmware
  • load and save user programs (boot project)
  • load and save the source code of the user program
  • load and save retentive variables (RETAIN, %R area)
  • load and save user data (with blocks)

The SD memory card can be operated by:

  • writing/reading files using a standard PC card reader with SD memory card interface
  • specific PLC-Browser commands
  • reading and writing data from the user program using specific blocks
  • using FTP client (firmware version > V2.1.x and a Processor Module with onboard ETHERNET)

PLC Browser Commands for AC500 V2 Products

For accessing the SD memory card the following PLC browser commands can be used:

  • persistent
  • retain
  • sdappl
  • sdboot x
  • sdcoupler x
  • sddisplay x
  • sdfirm x
  • sdfunc
  • sdonboardio x
  • sdrtcbat x

For details on the PLC browser commands for AC500 V2 products see PLC browser commands: AC500-Specific PLC Browser Commands