Siemens
​PLC Modules & Parts
Siemens LOGO! 8 PLC
Typical Uses:
  • Small Automation Projects: Ideal for simple control tasks such as lighting, HVAC systems, and small conveyor systems.
  • Building Automation: Used in controlling gates, shutters, and heating systems.
  • Industrial Applications: Suitable for pump control, compressor management, and small machine automation.
  • Educational Purposes: Commonly used in training environments due to its simplicity and ease of use.
Key Features:
  • Modular Design: Can be expanded with additional I/O modules to fit specific application needs.
  • Integrated Web Server: Allows for remote monitoring and control via a web browser.
  • Cloud Connectivity (from version 8.3): Enables integration with cloud services for remote access and data logging.
  • User-Friendly Programming: Utilizes LOGO! Soft Comfort software with drag-and-drop functionality for easy programming.
  • Display Options: Available with or without a 6-line LCD display; models with display include cursor keys for manual operation.
Example Part Numbers:
  • LOGO! 8 Base Modules:
    • 6ED1052-1MD08-0BA6 – LOGO! 8 12/24RC with display
    • 6ED1052-1HB08-0BA6 – LOGO! 8 24RCE without display
  • Expansion Modules:
    • 6ED1055-1MB08-0BA6 – Digital I/O extension
    • 6ED1055-1NB08-0BA6 – Analog I/O extension
Siemens SIMATIC S7-200 
​
Typical Uses:
  • Compact machines: Ideal for small to medium standalone automation tasks
  • OEM applications: Packaging machines, textile machines, food processing
  • Industrial control: Motor control, material handling, pumps, compressors
  • Process monitoring: Data logging, HVAC, energy systems
  • Educational training: Common in labs for PLC skill development
Key Features
  • Compact modular design, expandable with digital/analog modules
  • Fast processing with short cycle times
  • Communication: PPI, MPI, PROFIBUS, Modbus (via comm. modules)
  • Flexible I/O expansion: Digital, analog, temperature, special function modules
  • Integrated functions: Timers, counters, PWM outputs for motion/process control
  • Programming via STEP 7 Micro/WIN (Ladder, FBD, STL)
Example Part Numbers
​CPU Modules
  • 6ES7211-0AA23-0XB0 – CPU 221, 6 DI / 4 DO
  • 6ES7212-1AE40-0XB0 – CPU 222, 8 DI / 6 DO
  • 6ES7214-1AD23-0XB0 – CPU 224, 14 DI / 10 DO
  • 6ES7216-2AD23-0XB0 – CPU 226, 24 DI / 16 DO
Expansion Modules
  • 6ES7223-1BL22-0XA0 – Digital I/O, 8 DI / 8 DO
  • 6ES7223-3AD30-0XA0 – Analog input, 4 AI
  • 6ES7223-3BD30-0XA0 – Analog output, 2 AO
Communication Modules
  • 6ES7272-0AA20-0YA0 – PPI/MPI comm. module
  • 6ES7274-1XF22-0XA0 – PROFIBUS DP
Siemens SIMATIC S7-300
​
​Typical Uses
  • Medium to large automation systems
  • Manufacturing lines, process control, material handling
  • Packaging, automotive, food & beverage, and machinery control
  • Flexible applications requiring modular I/O and networking
Key Features
  • Modular rack-based PLC system
  • Wide range of CPUs (basic to high-performance)
  • Flexible I/O: digital, analog, specialty modules
  • Communication: PROFIBUS, PROFINET, MPI, Industrial Ethernet
  • Supports distributed I/O (ET 200 series)
  • Programming via STEP 7 (TIA Portal or Classic)
Example Part Numbers
CPU Modules
  • 6ES7314-6CG03-0AB0 – CPU 314C-2 DP, mid-range
  • 6ES7315-2AG10-0AB0 – CPU 315-2 DP
  • 6ES7317-2EK14-0AB0 – CPU 317-2 PN/DP, high-performance
I/O Modules
  • 6ES7321-1BL00-0AA0 – Digital input, 16 DI
  • 6ES7322-1BL00-0AA0 – Digital output, 16 DO
  • 6ES7331-7KF02-0AB0 – Analog input, 8 AI
  • 6ES7332-5HF00-0AB0 – Analog output, 8 AO
Communication Modules
  • 6ES7322-5HF00-0AB0 – Profibus DP
  • 6GK7343-1EX30-0XE0 – Ethernet CP343-1
Siemens SIMATIC S7-400 
​
Typical Uses
  • Large and complex automation systems
  • Process industries: oil & gas, power plants, chemical, steel, and water treatment
  • Distributed automation requiring high reliability
  • Mission-critical applications (redundancy support)
Key Features
  • High-performance, modular rack-based PLC
  • Large memory and fast processing for complex logic
  • Multi-processor configurations possible
  • Wide range of I/O and communication modules
  • Redundant CPU and power supply options
  • Communication: PROFIBUS, PROFINET, Industrial Ethernet
  • Programming via STEP 7 (TIA Portal or Classic)
Example Part Numbers
CPU Modules
  • 6ES7412-5HK06-0AB0 – CPU 412-2 PN/DP
  • 6ES7414-5HM06-0AB0 – CPU 414-3 PN/DP
  • 6ES7416-3ER06-0AB0 – CPU 416-3 PN/DP
  • 6ES7417-4XT07-0AB0 – CPU 417-4 PN/DP (high-end)
I/O Modules
  • 6ES7421-1BL00-0AA0 – Digital input, 16 DI
  • 6ES7422-1BL00-0AA0 – Digital output, 16 DO
  • 6ES7431-7KF00-0AB0 – Analog input, 8 AI
  • 6ES7432-5HF00-0AB0 – Analog output, 8 AO
Communication Modules
  • 6GK7443-1EX30-0XE0 – CP443-1 Ethernet
  • 6ES7455-0VS10-0AE0 – Redundancy module
Siemens SIMATIC S7-410 (Process Controller)
​
Typical Uses
  • Large-scale process automation in industries like:
    • Oil & Gas
    • Power Generation & Distribution
    • Chemical & Pharmaceutical plants
    • Water and Wastewater treatment
  • Mission-critical process control requiring redundancy and reliability
  • Complex, long-running batch and continuous processes
Key Features
  • High-performance process automation controller
  • Optimized for SIMATIC PCS 7 distributed control system (DCS)
  • Modular design with scalable performance levels
  • Supports redundant configurations for fail-safe operation
  • Large memory and very high processing capability
  • Built-in Industrial Ethernet, PROFIBUS, PROFINET communication
  • Integrated diagnostics, web server, and engineering with TIA Portal or PCS 7 Engineering System
  • Safety versions available (S7-410F for fail-safe applications)
Example Part Numbers
CPU Modules
  • 6ES7410-5HX08-0AB0 – CPU 410-5H, Process Controller, basic version
  • 6ES7410-5HX08-0BB0 – CPU 410-5H, with extended features
  • 6ES7410-5HX08-0XC0 – CPU 410-5H, performance edition
Power Supply Modules
  • 6ES7407-0KA02-0AA0 – Power supply for S7-410
Communication Modules
  • 6ES7430-0JJ00-0AB0 – Interface module for system connection
  • 6ES7431-7KF00-0AB0 – Analog input module
  • 6ES7432-5HF00-0AB0 – Analog output module
Siemens SIMATIC S7-1200
​
Typical Uses
  • Small to medium automation projects
  • Stand-alone machines, conveyor systems, packaging, HVAC
  • Water/wastewater and building automation
  • Entry-level industrial automation with networking
Key Features
  • Compact, modular design – DIN-rail mountable
  • Integrated PROFINET (Ethernet) port
  • Built-in digital & analog I/O (expandable with modules)
  • High-speed counters and pulse outputs (basic motion control)
  • Technology objects (PID, motion, pulse train outputs)
  • Integrated web server & remote diagnostics
  • Safety version available (S7-1200F CPUs)
  • Programming via TIA Portal (LAD, FBD, SCL, STL)
Example Part Numbers
CPU Modules
  • 6ES7211-1AE40-0XB0 – CPU 1211C, 6 DI / 4 DO
  • 6ES7212-1AE40-0XB0 – CPU 1212C, 8 DI / 6 DO
  • 6ES7214-1AG40-0XB0 – CPU 1214C, 14 DI / 10 DO
  • 6ES7215-1AG40-0XB0 – CPU 1215C, 14 DI / 10 DO (higher performance)
I/O Modules
  • 6ES7221-1BF32-0XB0 – Digital input, 8 DI
  • 6ES7222-1BF32-0XB0 – Digital output, 8 DO
  • 6ES7231-4HD32-0XB0 – Analog input, 4 AI
  • 6ES7232-4HB32-0XB0 – Analog output, 2 AO
Communication Modules
  • 6ES7241-1AH32-0XB0 – CM1241 RS232
  • 6ES7241-1CH32-0XB0 – CM1241 RS485
  • 6ES7242-5DX30-0XB0 – CM1242-5 PROFIBUS
Siemens SIMATIC S7-1500 
​
Typical Uses
  • Medium to large automation projects
  • High-performance machine and process automation
  • Automotive, pharmaceuticals, food & beverage, and energy industries
  • Advanced motion, safety, and high-speed processing applications
Key Features
  • High-performance modular PLC system
  • Integrated PROFINET/Ethernet, optional PROFIBUS
  • Large memory and extremely fast processing
  • Integrated web server and diagnostics functions
  • Advanced motion control, technology objects (PID, positioning, etc.)
  • Safety and redundancy support (S7-1500F and H CPUs)
  • Full integration with TIA Portal
Example Part Numbers
CPU Modules
  • 6ES7511-1AK02-0AB0 – CPU 1511-1 PN (basic model)
  • 6ES7512-1CK01-0AB0 – CPU 1512C-1 PN (compact, with onboard I/O)
  • 6ES7513-1AL02-0AB0 – CPU 1513-1 PN
  • 6ES7515-2AM01-0AB0 – CPU 1515-2 PN (high performance)
  • 6ES7518-4AX00-0AB0 – CPU 1518-4 PN/DP (flagship high-end CPU)
I/O Modules
  • 6ES7521-1BL00-0AA0 – Digital input, 16 DI
  • 6ES7522-1BL00-0AA0 – Digital output, 16 DO
  • 6ES7531-7KF00-0AB0 – Analog input, 8 AI
  • 6ES7532-5HF00-0AB0 – Analog output, 8 AO
Communication Modules
  • 6ES7541-1AB00-0AB0 – CM1541-1 Ethernet
  • 6ES7542-5DA00-0AB0 – CM1542-5 PROFIBUS
  • 6ES7543-1NX10-0AB0 – CM1543-1 Industrial Ethernet
Siemens SIMATIC ET 200 (Distributed I/O System)
​
Typical Uses
  • Distributed I/O in factory and process automation
  • Expanding SIMATIC S7-1200, S7-1500, or PCS 7 systems
  • Machine control in large plants with remote I/O requirements
  • Modular and flexible automation for production lines
  • Reduces wiring by placing I/O close to field devices
Key Features
  • Wide family of distributed I/O systems
  • Connects via PROFINET, PROFIBUS, or Ethernet/IP
  • Modular, scalable, and rugged designs for any environment
  • Supports digital, analog, fail-safe, motion, and technology modules
  • Flexible mounting: DIN-rail, IP65/67 field-mount, or cabinet-mount
  • Integrated safety (F-modules) for safety applications
  • Engineering and configuration via TIA Portal
Example Part Numbers (by family)
ET 200SP (compact modular)
  • 6ES7131-6BF00-0BA0 – Digital input, 8 DI
  • 6ES7132-6BF00-0BA0 – Digital output, 8 DO
  • 6ES7134-6GD00-0BA1 – Analog input, 2 AI
ET 200MP (for S7-1500)
  • 6ES7541-1AB00-0AB0 – CM1541 Ethernet module
  • 6ES7521-1BL00-0AA0 – Digital input, 16 DI
  • 6ES7531-7KF00-0AB0 – Analog input, 8 AI
ET 200S (modular, flexible)
  • 6ES7131-4BD01-0AA0 – Digital input, 4 DI
  • 6ES7132-4BD02-0AA0 – Digital output, 4 DO
ET 200pro (IP65/67 field I/O)
  • 6ES7193-4CB30-0AA0 – Base unit for ET 200pro
  • 6ES7131-4BF00-0AB0 – Digital input module
ET 200iSP (intrinsically safe)
  • 6ES7131-6BF00-0AA0 – I/O modules for hazardous areas
Siemens SIMATIC Drive-Based PLCs
​
Typical Uses
  • Applications where motion control and PLC logic are combined directly in the drive
  • Packaging machines, conveyor systems, textile machines
  • Handling systems with coordinated drive control
  • Cost-effective solutions for small to mid-size automation without a separate PLC
Key Features
  • Combines PLC + drive in one device
  • Based on SINAMICS drive family with integrated SIMATIC PLC functionality
  • Reduces wiring and cabinet space
  • Supports PROFINET, PROFIBUS communication
  • Programming via TIA Portal using the same environment as S7 PLCs
  • Integrated motion control functions (positioning, speed, torque control)
  • Scalable performance depending on drive type (SINAMICS S120, G120, etc.)
Example Part Numbers
  • SINAMICS G120D with PLC function – 6SL3544-0FB20-1FA0
  • SINAMICS S120 CU320-2 PN with PLC option – 6SL3040-1MA00-0AA1
  • SINAMICS G120X with integrated control – 6SL3224-0XE35-5UA0
Siemens Industrial PC-Based Control (IPC / WinAC)
​
Typical Uses
  • High-end automation requiring PC computing + PLC logic
  • Complex production systems with data processing & visualization
  • Integration of SCADA, MES, and HMI in the same system
  • Industries: automotive, packaging, pharmaceuticals, process industries
Key Features
  • Combines SIMATIC Industrial PC (IPC) hardware with WinAC (Windows-based PLC software)
  • Provides both PC performance + PLC reliability
  • Real-time capable control via WinAC RTX
  • Supports PROFINET, PROFIBUS, OPC UA communication
  • Can run TIA Portal, SCADA (WinCC), and control tasks on the same machine
  • Flexible system scaling: from embedded IPCs to rack PCs
  • Long lifecycle support with Siemens’ industrial-grade PCs
Example Hardware (IPC Series)
  • SIMATIC IPC227E – Compact embedded IPC
  • SIMATIC IPC277E – Panel PC with display
  • SIMATIC IPC427E – High-performance embedded PC
  • SIMATIC IPC677E – Industrial all-in-one panel PC
  • SIMATIC IPC847E – High-end rack PC for demanding automation
Example Part Numbers
  • IPC227E: 6ES7677-2AA00-0AA0
  • IPC427E: 6ES7647-8AB00-0YA0
  • IPC677E: 6AV7884-2AE00-0AA0
  • WinAC RTX 2010: 6ES7677-2AA31-0YA0