• PCD7.R55x

  • Flash memory module with file system


PCD3 Hardware

Manual 26-789 PCD3 Hardware

ENG21 .pdf 16.34 MB Download
FRA21 .pdf 15.65 MB Download
GER21 .pdf 17.97 MB Download
ITA21 .pdf 15.28 MB Download

File System and FTP Server

Manual 26-855 File System and FTP Server

ENG08 .pdf 2.25 MB Download
IT07 .pdf 3.35 MB Download

System Function Blocks for file system on PCD3 xx7

Info System Function Blocks for file system on PCD3 xx7

1.6 Archive .pdf 0.24 MB Download

Good to know

The module PCD7.R551M04 is no longer required as since firmware 1.16.27 it is possible to write the backup to a file system, see FAQ101622.

The PCD3 firmware does automatically execute a compression of the memory from time to time (triggered e.g. by a modified ratio of unused and used space on the flash module). During this compression task the file system is not accessible over FTP or the user program.
Note that during this compression task (taking up to several minutes) the PCD must not be switched off!


For analyzing FTP and HTTP communication or Ethernet communication in general, we recommend using the free software Wireshark (www.wireshark.org).

The requested software / document is no longer marketed by Saia-Burgess Controls AG and without technical support. It is an older software version which can be operated only on certain now no longer commercially available products.