Technical data of CPU 31xC   
6.6 Technical data of the integrated I/O 
  CPU 31xC and CPU 31x, Technical Data 
6-48  Manual, 01/2006 Edition, A5E00105475-06 
Technical data 
  CPU 312C  CPU 313C  CPU 313C-2  CPU 314C-2 
Current consumption   
•  with load voltage L+ 
Max. 50 mA  Max. 100 mA  Max. 100 mA  Max. 100 mA 
Status, interrupts, diagnostics  CPU 312C  CPU 313C  CPU 313C-2  CPU 314C-2 
Status display  green LED per channel 
Interrupts 
•  no interrupts when operated as standard I/O 
•  For using technological functions, please refer to the 
Technological 
Functions
 Manual. 
Diagnostics functions 
•  no diagnostics when operated as standard I/O 
•  For using technological functions, please refer to the 
Technological 
Functions
 Manual. 
Data for the selection of an actuator for 
standard DI 
CPU 312C  CPU 313C  CPU 313C-2  CPU 314C-2 
Output voltage   
•  For signal "1" 
Min. L+ (-0.8 V) 
Output current   
•  For signal "1" 
–  Rated value 
–  Permitted range 
0,5 A 
5 mA to 600 mA 
•  For signal "0" (residual current) 
Max. 0.5 mA 
Load impedance range  48 Ω to 4 kΩ  
Lamp load  Max. 5 W 
Parallel connection of 2 outputs   
•  for redundant load control 
Supported 
•  for performance increase 
Not possible 
Controlling of digital inputs  Supported 
Switching frequency   
•  under resistive load 
Max. 100 Hz 
•  For inductive load to IEC 947-5, DC13 
Max. 0.5 Hz 
•  under lamp load 
Max. 100 Hz 
•  fast outputs under resistive load 
Max. 2.5 kHz 
Inductive breaking voltage limited internally to  Typically (L+) - 48 V 
Short-circuit protection of the output  Yes, electronic 
•  Response threshold 
Typically 1 A