SIMATIC TDC hardware
System Manual, 08/2017, A5E01114865-AL
217
Submodules
8
8.1
Program memory modules CPU555
Article number
Program memory (2 MB)
6ES7953-8LL31-0AA0
Program memory (4 MB)
6ES7953-8LM31-0AA0
Program memory (8 MB)
6ES7953-8LP31-0AA0
Description
The program memory modules are used to store the processor program (including the
operating system) you configured in HW Config and CFC and for saving online changes.
Installation/ programming
The program memory module is inserted into the submodule slot X4 provided on the
CPU555 module and can by loaded with the user program in various ways:
●
Offline loading
–
Via a MMC programming adapter installed on the PC
–
Via a SIMATIC USB prommer (6ES7792-0AA00-0XA0) connecte via USB to the PC
●
Online download
–
Directly from the PC via a communication link (e.g. PROFINET) into the memory
module plugged into the CPU555 module.
Program size
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
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