Siemens is a German MNC headquartered in Munich founded by Ernst Werner Siemens in 1847. It is the largest industrial manufacturing company in Europe.
Types of Siemens PLC
Based on your suitable applications and requirements, Siemens PLCs are classified into
1)LOGO PLC
2)S7 200 Smart PLC
3)S7 200 PLC
4)S7-300
5)S7-400
6)S7-1200
7)S7-1500
LOGO PLC
Logo PLC is a very basic model of Siemens PLC. So, its I/O handling capacity is very low.
This type of PLC mainly used in small-scale industries.
Logo! soft software is used for programming purposes.
Disadvantages:
Need physical access to program it
Complexity exceeds the amount of available programming instructions
S7 200 Smart PLC
It’s a Compact - modular type PLC. It is also used for small scale industry like Logo PLC
It has 38 Analog I/O capacity and 256 Digital I/O capacity
RS485 communication port is available.
Step 7 Microwin is the software used for programming purpose
S7-300
It is a bus-linked platform (a serial connector to all modules)
This is a mini modular PLC for the low and mid-range applications
Can expand the I/O without any issues when the tasks increase but there is limit foe expansion.
It has inbuilt motion control applications.
User-friendly handling and uncomplicated design
For S7-300 you can use two software for programming
1)Step 7 V5.x + WinCC flexible
2)TIA Step 7 Professional + TIA WinCC
It is available in
a) Standard
b) Compact
c)failsafe
d)Technology T version
S7-300f
It is also based on S7-300
It has fail-safe automation system for plants with safety requirements for production technology
It had ET 200s and ET 200M distributed I/O stations.
We can connect safety-related modules via PROFIBUS DP with PROFIsafe profile
For S7-300 you can use two software for programming
1)Step 7 V5.x + WinCC flexible
2)TIA Step 7 Professional + TIA WinCC
S7-400
It is a rack-based system that means a Multi-pin backplane linking all modules from power supply to I/Os.
S7-400 designed for system solutions for manufacturing and process automation.
This process controller is suitable for data-intensive activities that are exceptionally common for the process industry.
S7-400 CPU available in
a) Standard
b) Failsafe F
c)High availability H
Software used for programming are
1)Step 7 Basic
2)TIA Portal
S7-1200 Signal Modules
S7-1200 have a compact configuration and can be used in a wide variety of applications
SIMATIC S7-1500/ET 200MP signal or peripheral modules are the interfaces between the controller and the process.
They can be used centrally on the SIMATIC S7-1500 CPU or on the decentralized SIMATIC ET 200MP peripheral system.
It has a very high processing speed.
It comes with an integrated power supply and onboard digital I/Os and onboard analog I/Os
It also has high-speed motion control I/O.
Can be added communication board, battery board, or signal board without affecting the size of the CPU.
PROFINET isochronous real-time (IRT) for maximum quality
Shortest input delay of 50 μs for Digital input modules
Quick analog modules with a conversion time of 62.5 μs or 125 μs for 8 channels
TIA Portal software used for programming
S7-1500
It is designed for fast market changes.
CPUs, I/O modules, and commination modules can be added, up to 32 expansion modules, as needed to fit your project.
S7-1500 has an inbuilt display and keypad that allows for basic configuration and diagnostics.
It has a scalable configuration that incorporates a CPU at least one system power supply module, a communication module, or signal module as needed up to 32 modules
It has inbuilt PROFINET ports
It is available in
a) Standard
b) Failsafe F.
Step 7 TIA Portal software is used for programming S7-1500.