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9.3.2
Types of Memory Cards
You can use two types of memory cards:
•
RAM card or
•
FLASH card (FEPROM card)
Caution
Do not use non-system memory cards in the CPU 41x-2 PCI!
Which Type of Memory Card Should You Use?
Whether you use a RAM card or a FLASH card depends on how you want to use
the memory card.
You store the data in RAM and want to change your
program even during RUN mode.
You want to save your user program permanently
on the memory card even when the power is turned
off (without battery backup or external to the CPU).
Differences between RAM Card and FLASH Card
The RAM card must be inserted in
the CPU in order to load the user
program. The user program is loaded
with the aid of the programming
device (PG).
Windows Automation Center, WinAC Slot Version 4.0
Hardware Installation and Operating Manual, Edition 02/2006, A5E00273194-02
If ...
RAM Card
Reference Information
Use a RAM card
Use a FLASH card
FLASH Card
You have two options for loading the
user program:
Switch the CPU to STOP with the
mode selector, insert the FLASH
card into the CPU, and load the user
program onto the load memory area
with the aid of the programming
device.
Load the user program onto the
FLASH card in offline mode on the
programming device and then insert
the FLASH card into the CPU.
Then ...
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