____________________________________________________________________________________________________________
V2
AC500 Hardware
1-24 System
data
AC500 / Issued: 05.2007
Insertion of the SD Memory Card
AC500 CPUs are supplied without an SD Memory Card. It therefore must be ordered separately. The SD
Memory Card is used to back-up user data and store user programs as well as to update the internal
CPU firmware. AC500 CPUs can be operated with and without SD Memory Cards.
The CPU uses a standard file system. This allows standard card readers to read the MC502 SD Memory
Cards.
Attention:
The use of memory cards other than the MC502 SD Memory Card is prohibited. ABB
is not responsible nor liable for consequences resulting from the use of unapproved memory cards.
Attention:
In operation, the plugged-in SD Memory Card withstands vibrations up to 1 g. Without
using an SD Memory Card, the CPU itself withstands vibrations up to 4 g.
SD Memory Card
MC502
ETH
FBP
COM1
COM2
PWR
RUN
ERR
RUN
DIAG
VAL
CFG
ESC
OK
PM581
INSERT
PUSH
MC
502
SYS
BATT
I/O-Bus
CPU
24 V DC 10 W
WARNING!
Use of
incorrect
battery may
cause fire or
explosion.
Figure: Insertion of the SD Memory Card
To insert the SD Memory Card, follow the procedure shown below.
1. Remove the SD Memory Card from its package.
2. Insert the memory card into the opening of the front face of the CPU with the memory aligned as
shown above (contacts are visible on the left side, bevelled edge below).
3. Push on the card until it moves forward, then release your pressure, the SD card comes slightly
backward and it locks into the card slot.
Removing the SD Memory Card
To remove the card, first push on the card until it moves forward (that unlocks the card), then release
your pressure, the card will go forward out of the slot and can be easily removed.
The technical data sheet for the SD Memory Card can be found in the chapter "Accessories / SD
Memory Card MC502".