Saia-Burgess Controls AG
Hardware manual for PCD3 series │ Document 26-789 ENG19│ 2018-06-29
Optional memory upgrades
PCD3.Mxxx0 Classic CPU and expansion enclosure
3-63
3
Operating mode switch
Behind the label clip is a 10-position BCD switch that can be rotated with a #0
screwdriver.
BCD Position
Meaning
0
normal read/write**
1
Reserve
2
Reserve
3
Reserve
4
Reserve
5
format * / **
6
Reserve
7
Reserve
8
Reserve
9
normal read only
* Starts after plugging in; pull, then plug in again
** if the card itself is not write-protected (switch or software)
Note
● A PC file system FAT (FAT16) must be present on the card, so that the SD
card can be formatted with the SBC file system
● First, all FAT files are deleted, then the SBC file system is installed when
inserting the card and BCD switch position 5
● If the BCD switch is in the 0 position, the SBC file system (SBCNTFS.FFS)
will be installed if it is not already present and the card is empty. Therefore, if
a new card is inserted, it does not need to be formatted with position 5
● Not all flashcards have a write-protect switch
●
The card is in a so-called push-push socket (push to pull and plug in)
●
All operations except formatting are disabled when the label clip is removed
●
Do not pull the card while the busy LED is lit.