Siemens SIMATIC S7 - 2.4 Wiring between the PLC and the Plant

Product overview
1.1 S7-200 SMART CPU
S7-200 SMART
18 System Manual, V2.3, 07/2017, A5E03822230-AF
1.1
S7-200 SMART CPU
The CPU combines a microprocessor, an integrated power supply, input circuits, and output
circuits in a compact housing to create a powerful Micro PLC. After you have downloaded
your program, the CPU contains the logic required to monitor and control the input and
output devices in your application.
①
LEDs for the I/O
②
Terminal connectors
③
Ethernet
communication port
④
Clip for installation on a
standard (DIN) rail
⑤
Ethernet status LEDs
(under door): LINK, Rx/Tx
⑥
Status LEDs: RUN, STOP and
ERROR
⑦
RS485 Communication port
⑧
Optional signal board
(Standard models only)
⑨
Memory card r
eader (under
door)
(Standard models only)
The CPU provides different models with a diversity of features and capabilities that help you
create effective solutions for your varied applications. The different models of CPUs are
shown below. For detailed information about a specific CPU, see the technical specifications
(Page 685).
Note
CPU CR40 and CPU CR60
S7
-200 SMART CPU firmware release V2.3 does not apply to the CPU CR40 and CPU
CR60 models.