Technical data of CPU 31xC
6.2 CPU 312C
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
6-7
Technical data
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
I
2
t 0.7 A
2
s
External fusing of power supply lines
(recommended)
LS switch Type C min. 2 A,
LS switch Type B min. 4 A
Power loss Typically 6 W
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