Technical data of CPU 31x   
7.6 CPU 317-2 DP 
  CPU 31xC and CPU 31x, Technical Data 
7-26  Manual, 01/2006 Edition, A5E00105475-06 
Technical data 
Weight  460 g 
Voltages, currents 
Power supply (rated value)  DC 24 V 
•  Permissible range 
20.4 V to 28.8 V 
Current consumption (no-load operation)  100 mA 
Making current  Typically 2.5 A 
I
2
t  Min. 1 A
2
s 
External fusing of power supply lines 
(recommended) 
Min. 2 A 
Power loss  Typically 3.5 W  
 
7.6  7.6 CPU 317-2 DP 
Technical Data 
Table 7-7  Technical data for the CPU 317-2 DP 
Technical Data 
CPU and version 
Order number  6ES7317-2AJ10-0AB0 
•  Hardware version 
01 
•  Firmware version 
V 2.1.0 
•  Associated programming package 
STEP 7 as of V 5.2 + SP 1 
Memory 
RAM   
•  Integrated 
512 KB 
•  Expandable 
No 
Capacity of the retentive memory for retentive 
data blocks 
Max. 256 KB 
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 operations 
0.05 μs  
•  Word instructions 
0.2 μs  
•  Fixed-point arithmetic 
0.2 μs  
•  Floating-point arithmetic 
1.0 μs  
Timers/counters and their retentivity 
S7 counters  512