What's New; S7-200 Cpu - Siemens SIMATIC S7-200 System Manual

S7-200 Programmable Controller System Manual

What's New?

The new features of the SIMATIC S7-200 include two new analog expansion modules:
EM 231 Analog Input RTD, 4 Inputs
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EM 231 Analog Input Thermocouple 8 Inputs
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Appendix H, S7-200CN Products
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S7-200 CPU

The S7-200 CPU combines a microprocessor, an integrated power supply, input circuits, and
output circuits in a compact housing to create a powerful Micro PLC. See Figure 1-1. After you
have downloaded your program, the S7-200 contains the logic required to monitor and control the
input and output devices in your application.
I/O LEDs
Status LEDs:
System Fault/Diagnostic
(SF/DIAG)
RUN
STOP
Optional cartridge:
Memory Cartridge
Real-time Clock
Battery
Communications port
Figure 1-1 S7-200 Micro PLC
2
Access door:
Mode selector switch (RUN/STOP)
Analog adjustment potentiometer(s)
Expansion port (for most CPUs)
Terminal connector
(removable on CPU 224, CPU 224XP
and CPU 226)
Clip for installation on a standard (DIN) rail