Technical Description; Notes On Operation; Memory Submodules - Siemens S5-155U System Manual

5.7

377 Memory Submodules

5.7.1

Technical Description

5.7.2

Notes on Operation

Loading RAM submodules
System Manual
C79000-B8576-C199-03
This section provides a summary
• • of the use of the 377 memory submodules in the 928B, 928 and
922 CPUs,
• • and of the technical specifications.
377 memory submodules (RAM submodules) are available with or
without battery backup in the following capacities:
Without Battery Backup
16 Kbytes
32 Kbytes
64 Kbytes
The order numbers for the 377 memory submodules can be found in
the ordering information.
377 memory submodules are loaded online (from the PG) in the CPU.
A description of loading the individual submodules or the entire
program can be found in the STEP 5 manual.
377 Memory Submodules
With Battery Backup
64 Kbytes
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