Siemens SIMATIC S7 System Manual page 18

94BProduct overview
1.1 Introducing the S7-1200 PLC
Table 1- 1 Comparing the CPU models
Feature
Physical size (mm)
User memory Work
Load
Retentive
Local on-board I/O Digital
Analog
Process image Inputs (I)
size
Outputs (Q)
Bit memory (M)
Signal module (SM) expansion
Signal board (SB) or communication
board (CB)
Communication module (CM)
(left-side expansion)
High-speed Total
counters
Single phase
Quadrature phase
Pulse outputs
1
Memory card
Real time clock retention time
PROFINET
Real math execution speed
Boolean execution speed
For CPU models with relay outputs, you must install a digital signal board (SB) to use the pulse outputs.
1
Each CPU provides dedicated HMI connections to support up to 3 HMI devices. The total
number of HMI is affected by the types of HMI panels in your configuration. For example,
you could have up to three SIMATIC Basic panels connected to your CPU, or you could
have up to two SIMATIC Comfort panels with one additional Basic panel.
The different CPU models provide a diversity of features and capabilities that help you create
effective solutions for your varied applications. For detailed information about a specific
CPU, see the technical specifications (Page 657).
18
CPU 1211C
90 x 100 x 75
25 Kbytes
1 Mbyte
2 Kbytes
6 inputs/4 outputs
2 inputs
1024 bytes
1024 bytes
4096 bytes
None
1
3
3
3 at 100 kHz
3 at 80 kHz
2
SIMATIC Memory card (optional)
10 days, typical / 6 day minimum at 40 degrees C
1 Ethernet communications port
18 μs/instruction
0.1 μs/instruction
CPU 1212C
90 x 100 x 75
25 Kbytes
1 Mbyte
2 Kbytes
8 inputs/6 outputs
2 inputs
1024 bytes
1024 bytes
4096 bytes
2
1
3
4
3 at 100 kHz
1 at 30 kHz
3 at 80 kHz
1 at 20 kHz
2
System Manual, 11/2011, A5E02486680-05
CPU 1214C
110 x 100 x 75
50 Kbytes
2 Mbytes
2 Kbytes
14 inputs/10 outputs
2 inputs
1024 bytes
1024 bytes
8192 bytes
8
1
3
6
3 at 100 kHz
3 at 30 kHz
3 at 80 kHz
3 at 20 kHz
2
S7-1200 Programmable controller