Technical data of CPU 31x 
  7.5 CPU 315-2 PN/DP 
CPU 31xC and CPU 31x, Technical Data 
Manual, 01/2006 Edition, A5E00105475-06 
7-19 
7.5  7.5 CPU 315-2 PN/DP 
Technical data 
Table 7-6  Technical data for the CPU 315-2 PN/DP 
Technical data 
CPU and version 
Order no. [MLFB]  6ES7315-2EG10-0AB0 
•  Hardware version 
01 
•  Firmware version 
V 2.3.0 
•  Associated programming package 
STEP 7 as of V 5.3 + SP 1 
Memory 
Work memory   
•  Work memory 
128 Kbytes 
•  Expandable 
No 
Capacity of the retentive memory for retentive 
data blocks 
128 Kbytes 
Load memory  Plugged in with MMC (Max. 8 MB) 
Buffering  Guaranteed by MMC (maintenance-free) 
Data storage life on the MMC  
(following final programming) 
At least 10 years 
Execution times 
Processing times of   
•  Bit instructions 
0.1 μs 
•  Word instructions 
0.2 μs 
•  Integer maths 
2 μs 
•  Floating-point maths 
3 μs 
Timers/counters and their retentive address areas 
S7 counters  256 
•  Retentive address areas 
Configurable 
•  Default 
From C0 to C7 
•  Counting range 
0 to 999 
IEC Counters  Yes 
•  Type 
SFB 
•  Number 
Unlimited  
(limited only by work memory) 
S7 timers  256 
•  Retentive address areas 
Configurable 
•  Default 
Not retentive 
•  Timer range 
10 ms to 9990 s