Siemens CPU 315-2 DP User Manual

CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
4-1
Memory concept
4
4.1 4.1 Memory areas and retentivity
4.1.1 CPU memory areas
The three memory areas of your CPU:
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Load memory
The load memory is located on the SIMATIC Micro Memory Card (MMC). The size of the
load memory corresponds exactly to the size of the SIMATIC Micro Memory Card. It is used
to store code blocks, data blocks and system data (configuration, connections, module
parameters, etc.). Blocks that are identified as non runtime-related are stored exclusively in
load memory. You can also store all the configuration data for your project on the SIMATIC
Micro Memory Card.
Note
User programs can only be downloaded and thus the CPU can only be used if the SIMATIC
Micro Memory Card is inserted in the CPU.

Siemens CPU 315-2 DP Specifications

General

Memory	64 KB
Power Supply	24 V DC
Order Number	6ES7 315-2AG10-0AB0
Number of DP Masters	1
Number of DP Slaves	124
Load Memory	64 KB
Number of Timers	256
Number of Counters	256
Data Memory	64 KB
Operating Temperature	0 to 60 °C
Integrated Interfaces	MPI, DP
Digital Outputs	Not integrated
Analog Inputs	Not integrated
Analog Outputs	Not integrated
Programming Languages	LAD, FBD, STL
Digital Inputs	Not integrated
Weight	660 g