Siemens SIMATIC S7-1200

Getting started with S7-1200
Getting Started, 11/2009, A5E02486791-01
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Quick review
1
With an integrated power supply and a variety of on-board input and output circuits, the
S7-1200 CPU is a powerful controller. After you download your program, the CPU monitors
the inputs and changes the outputs according to the logic of your user program, which can
include Boolean logic, counters, timers, and complex math operations.
① Power connector
② Removable user wiring connectors
(behind the doors)
③ Status LEDs for the on-board I/O
④ PROFINET connector (on the bottom
of the CPU)
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To communicate with a programming
device, the CPU provides a built-in
PROFINET port. With the PROFINET
network, the CPU can communicate with
HMI panels or another CPU.
Feature CPU 1212C
Physical size 90 mm x 100 mm x 75 mm
 Work memory
 Load memory
 Retentive memory
 25 Kbytes
 1 Mbyte
 2 Kbytes
 On-board digital I/O
 On-board analog I/O
 8 inputs and 6 outputs
 2 inputs
 Process image (Input)
 Process image (Output)
 Bit memory (M)
 1024 bytes
 1024 bytes
 4096 bytes