SIMATIC S7-200 Programmable Controller

SIMATIC S7-200

The S7-200 series of micro-programmable logic controllers (Micro PLCs) can control a wide variety of devices to support your automation needs.
The S7-200 monitors inputs and changes outputs as controlled by the user program, which can include Boolean logic, counting, timing, complex math operations, and communications with other intelligent devices. The compact design, flexible configuration, and powerful instruction set combine to make the S7-200 a perfect solution for controlling a wide variety of applications.

The Siemens S7-200 PLC is a very popular choice, when you start PLC programming. It is the cheapest PLC from Siemens, and it is very easy to begin programming. The Siemens S7-200 has a limited variety of functions, but it certainly also has a lot of advantages. With this article, you will be ready to start configuring and programming the Siemens S7-200 PLC.

As you may know, the PLC product line from Siemens is named S7 or Step 7 PLC’s. The smallest PLC model is the Siemens S7-200 PLC. In the line of PLC’s you will also find the Siemens S7-300, Siemens s7-400, Siemens S7-1200 and the most advanced PLC system in the line; Siemens S7-1500.

Siemens S7-200 CPU module

Image result for S7-200 CPU modules

The first module for the S7-200 series is the CPU module. This is a necessary module, and you will always need at least one of these. A Siemens S7-200 CPU module contains the CPU PLC hardware. This is the module that has your PLC program stored and runs it.

There are several CPU modules for the S7-200 available. Some with digital inputs and outputs only, some with analog inputs and outputs, and some with expansion modules available.

Communication Modules for S7-200

Siemens S7-200 communication with PROFIBUS and AS-Interface

Siemens S7-200 communication with PROFIBUS and AS-Interface.

At last, you can expand the Siemens S7-200 system with PLC communication. You can get network interfaces for ASI bus network, PROFIBUS network and Ethernet network. All the network interface modules have standard connectors for each network protocol. For example, the Ethernet network uses RJ45 connectors for connecting the Ethernet cables. The networking modules also lets you communicate with other Siemens PLC’s like the Siemens LOGO and the S7-300 and 400 PLC’s.

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