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Introducing the powerful and flexible S7-1200
1.1 Introducing the S7-1200 PLC
Easy Book
16 Manual, 03/2014, A5E02486774-AF
Table 1- 1 Comparing the CPU models
Feature
CPU 1211C
CPU 1212C
CPU 1214C
CPU 1215C
CPU 1217C
Physical size (mm)
90 x 100 x 75
90 x 100 x 75
110 x 100 x 75
130 x 100 x 75
150 x 100 x 75
User memory
Work
30 Kbytes
50 Kbytes
75 Kbytes
100 Kbytes
125 Kbytes
Load
1 Mbyte
1 Mbyte
4 Mbytes
4 Mbytes
4 Mbytes
Retentive
10 Kbytes
10 Kbytes
10 Kbytes
10 Kbytes
10 Kbytes
Local on-board
I/O
Digital 6 inputs/4
outputs
8 inputs/6
outputs
14 inputs/10
outputs
14 inputs/10
outputs
14 inputs/10
outputs
Analog 2 inputs 2 inputs 2 inputs 2 inputs/2
outputs
2 inputs/2
outputs
Process image
size
Inputs (I)
1024 bytes
1024 bytes
1024 bytes
1024 bytes
1024 bytes
Outputs (Q)
1024 bytes
1024 bytes
1024 bytes
1024 bytes
1024 bytes
Bit memory (M)
4096 bytes
4096 bytes
8192 bytes
8192 bytes
8192 bytes
Signal module (SM) expansion
None
2
8
8
8
Signal board (SB), Battery board
(BB), or communication board
(CB)
1 1 1 1 1
Communication module (CM)
(left-side expansion)
3 3 3 3 3
High-speed
counters
Total
Up to 6 configured to use any built-in or SB inputs
1 MHz
--
--
--
--
Ib.2 to Ib.5
100/
1
80 kHz
Ia.0 to Ia.5
Ia.0 to Ia.5
Ia.0 to Ia.5
Ia.0 to Ia.5
Ia.0 to Ia.5
30/
1
20 kHz
--
Ia.6 to Ia.7
Ia.6 to Ib.5
Ia.6 to Ib.5
Ia.6 to Ib.1
Pulse outputs
2
Total
Up to 4 configured to use any built-in or SB outputs
1 MHz
--
--
--
--
Qa.0 to Qa.3
100 kHz
Qa.0 to Qa.3
Qa.0 to Qa.3
Qa.0 to Qa.3
Qa.0 to Qa.3
Qa.4 to Qb.1
20 kHz
--
Qa.4 to Qa.5
Qa.4 to Qb.1
Qa.4 to Qb.1
--
Memory card
SIMATIC Memory card (optional)
Real time clock retention time
20 days, typ./12 day min. at 40 degrees C (maintenance-free Super Capacitor)
PROFINET
Ethernet communication port
1 1 1 2 2
Real math execution speed
2.3 μs/instruction
Boolean execution speed
0.08 μs/instruction
1
The slower speed is applicable when the HSC is configured for quadrature mode of operation.
2
For CPU models with relay outputs, you must install a digital signal (SB) to use the pulse outputs.
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 281).