Submodules
8.2 Program memory modules CPU550/551
SIMATIC TDC hardware
System Manual, 08/2017, A5E01114865-AL
219
Program memory modules CPU550/551
Article number
Program memory module MC500
Program memory module MC510
Program memory module MC521 6DD1610-0AH3
The program memory modules are used to store the processor program (including the
operating system) you configured in HW Config and CFC.
Installation/ programming
The program memory module is inserted into the submodule slot provided on the CPU
module and can by loaded with the user program in two ways:
● By means of an integrated PCMCIA ("PC Card") programming adapter on the PC
(
)
● Directly from the PC to the memory module inserted in the CPU module via serial
communication connection (
)
The volume of configuration data to download to the memory module (compressed to
approx. 50 %) and the free program memory space can be viewed in the CFC by selecting:
PLC / Load / Info
The following table shows the differences in the application and expansion of the program
memory modules:
Flash memory for storing the configuration data
EEPROM for variable operating parameters
Flash memory is non-volatile and can be electrically programmed and erased.
Dimensions W x H x D [mm]
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