Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG
Memory module PCD3.R600 for flash cards (FCs)
PCD2.M5_ Classic CPUs and expansion housings
3-49
3
I/O bus functions
Some states are detected by the user program.
I/O bus
offset
Write
Read
Meaning
+0
BCD switch setting Bit 0 (lsb)
Position (non-inverted) of BCD
switch
+1
do not use
BCD switch setting Bit 1
+2
do not use
BCD switch setting Bit 2
+3
do not use
BCD switch setting Bit 3 (msb)
+4
do not use
+5
do not use
+6
do not use
0 = Card present
1 = card removed
+7
do not use
SD write-protect switch
1 = SD blocked/removed
0 = MMC or SD released
3.13.7 Order details
Order code
Description
Weight
PCD2.R6000
Base module for SD flash memory cards, for I/O
slot 0…3 (flash card not included)
60 g
PCD7.R-SD256
SD flash memory card 256 MB
2 g
PCD7.R-SD512
SD flash memory card 512 MB
2 g
PCD7.R-SD1024
SD flash memory card 1,024 MB
2 g