Siemens S7-300 Technical data Functionality, Programming, Integrated functions, Dimensions

Technical data of CPU 31xC 6.2 CPU 312C

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		Yes
	–	As server
	–	As client	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			124.0 to 125.1
	–	Digital inputs
	–	Digital outputs	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

CPU 31xC and CPU 31x, Technical data	6-7
Manual, Edition 08/2004, A5E00105475-05