Siemens Simatic S7-300 CPU 31xC and CPU 31x S7-300 - Manual (Page 117)

Technical data of CPU 31xC
6.2 CPU 312C
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
6-7
Technical data
Functionality
• MPI Yes
• PROFIBUS DP No
• Point-to-point communication No
MPI
Services
• PG/OP communication Yes
• Routing No
• Global data communication Yes
• S7 basic communication Yes
• S7 communication
–
As server
– As client
Yes
No
• Transmission rates max. 187.5 kbps
Programming
Programming language
LAD/FBD/STL
Available instructions see the Instruction List
Nesting levels 8
System functions (SFCs) see the Instruction List
System function blocks (SFBs) see the Instruction List
User program security Yes
Integrated I/O
•
Default addresses of the integrated
–
Digital inputs
– Digital outputs
124.0 to 125.1
124.0 to 124.5
Integrated functions
Counters 2 channels (see the Manual Technological
Functions )
Frequency counters 2 channels, max. 10 kHz (see the Manual
Technological Functions )
Pulse outputs 2 channels for pulse width modulation, max.
2.5 kHz (see the Manual Technological
Functions )
Controlled positioning No
Integrated "Controlling" SFB No
Dimensions
Mounting dimensions W x H x D (mm)
80 x 125 x 130
Weight 409 g
Voltages and currents
Power supply (rated value)
24 VDC
• Permitted range 20.4 V to 28.8 V
Current consumption (no-load operation) Typically 60 mA
Inrush current Typically 11 A
Power consumption (nominal value) 500 mA