Overview of SIMATIC S7-1500 modules

The SIMATIC S7-1500 features a modular design and can be scaled in terms of its functionality.

Different central processing units (CPU types) are available for multiple performance classes. A wide range of signal modules for input and output as well as technology modules for special technological functions, such as counting, and centralized and decentralized communication modules are available to serve as interfaces to the machine or plant. The SIMATIC S7-1500 is approved for protection class IP20 and designed for installation in a control cabinet.


Central processing units

The central processing units (CPU) are the heart of the SIMATIC S7-1500. They execute the user program and network the controller with other automation components.


Signal modules

The signal modules or I/O modules form the interface between the controller and the process. They can be used in centralized as well as in decentralized configurations.


Technology modules

Technology modules (TM) offer hardware-level signal pre-processing for rapid counting, measurement and position registration for a variety of encoders.


Communication modules

Communication modules increase the communication capabilities of the SIMATIC S7-1500 through additional functions or interfaces.


Starter Kits

Everything for an easy start: use the SIMATIC S7-1500 Starter Kit with the compact CPU. Fast control – fast start!


  • Modular, scalable, and universally usable system in IP20 level of protection
  • The system solution for a variety of automation applications in discrete automation
  • Highest performance with excellent usability
  • Configurable exclusively in the Totally Integrated Automation Portal with STEP 7 Professional V12 or higher
  • Increase in performance through
    • Faster command execution
    • Language extensions
    • New data types
    • Faster backplane bus
    • Optimized code generation
  • Powerful communication:
    • PROFINET IO (2-port switch) as standard interface;
      from CPU 1515-2 PN, one or more additional integrated PROFINET interfaces, e.g. for network separation, for connecting further PROFINET devices or for high-speed communication as an I-device
    • OPC UA Data Access Server as runtime option for the easy connection of SIMATIC S7-1500 in third-party devices/systems
    • Expandable with communication modules for bus systems and point-to-point connection
Integrated technology
  • Motion control integrated without additional modules:
    • Standardized blocks (PLCopen) for connection of analog and PROFIdrive-capable drives
    • The motion control functionality supports speed-controlled axes, positioning axes, relative synchronous operation (synchronizing without specification of the synchronized position), as well as external encoders, cams and probes.
    • Extended motion control functions such as absolute synchronous operation (synchronizing with specification of the synchronized position) and camming are also integrated in the technology CPUs.
  • Comprehensive trace functions for all CPU tags for real-time diagnostics and sporadic error detection;
    for effective commissioning and quick optimization of drives and controls
  • Comprehensive control functionalities:
    e.g. easily configurable blocks for automatic optimization of the control parameters for optimum control quality
  • Additional functions through available technology modules:
    e.g. high-speed counting, position detection, or measurement functions for signals up to 1 MHz
Design and handling
  • CPUs with display for plain text information (display simulator tool on the Internet):
    • Information about article numbers, firmware version, and the serial number of all connected modules can be displayed
    • Setting the IP address of the CPU and additional network settings possible directly on site, without programming device on the display
    • Display of occurring error messages directly as plain text message, meaning reduction in downtime
  • Uniform front connectors for all modules and integrated potential bridges for flexible potential group formation simplify stock keeping and reduce wiring effort
  • Integrated DIN rail in the S7-1500 DIN rail:
    quick and easy installation of additional components such as miniature circuit breakers, relays, etc.
  • Central expansion with signal modules:
    for flexible adaptation to any application
  • System cabling for digital signal modules:
    for fast and clearly arranged connecting to sensors and actuators in the field and simple wiring inside the control cabinet
  • Power supply:
    • Load power supply modules (PMs) for supplying the module with 24 V
    • Power supply modules to supply power to the internal module electronics via the backplane bus
  • Distributed expansion:
    • Use of up to 30 signal modules, communication modules, and technology modules via the PROFINET interface module IM 155-5 for the ET 200MP I/O system
    • No difference in terms of handling and system functions in central and distributed operation
Integrated system diagnostics
  • Integrated system diagnostics for CPUs, activated by default:
    • Consistent plain text display of system diagnostic information in the display, TIA Portal, HMI, and web server, even for drive messages. Messages are updated even if the CPU is in STOP state.
    • System diagnostics integrated in the CPU firmware. Configuration by user not required. The diagnostics is automatically updated on configuration changes.
Support of SIMATIC ProDiag S7-1500
  • ProDiag is a concept for the easy creation of machine and plant diagnostics It increases availability and supports with fault analysis and elimination on-site.


The SIMATIC S7-1500 is the modular control system for a variety of automation applications in discrete automation.

The modular and fan-free design, simple implementation of distributed structures, and convenient handling make the SIMATIC S7-1500 the cost-effective and user-friendly solution for the most diverse tasks.

Application areas of the SIMATIC S7-1500 include:

• Special machinery

• Textile machinery

• Packaging machinery

• General mechanical engineering

• Controller building

• Machine tool manufacture

• Installation systems

• Electrical/electronics industry and the skilled trades.

• Automotive

• Water/wastewater

• F&B

Several CPUs of different performance levels and a comprehensive module range with many convenient functions are available. Failsafe CPUs facilitate use in failsafe applications. The modular design allows users to use only the modules they require for their applications. In the case of task expansions, the controller can be upgraded at any time by means of additional modules:

High industrial strength thanks to high electromagnetic compatibility and high resistance to shock and vibration enable universal use of the SIMATIC S7-1500.


The S7-1500 features different communication interfaces:

  • PROFINET IO IRT interface (2-port switch), integrated in the CPU;
    for defined response times and high-precision plant behavior.
  • Communications processors for connecting to the PROFIBUS, Industrial Ethernet and PROFINET bus systems
  • Communication modules for point-to-point connections.

Technical specifications

General technical specifications

Degree of protection

IP20 acc. to IEC 60 529

Ambient temperature

  • Horizontal installation

0…60 °C (display: at an operating temperature of typ. 50 °C, the display is switched off.)

  • Vertical installation

0… 40 °C (display: at an operating temperature of typ. 40 °C, the display is switched off.)

Relative humidity

5%…95%, no condensation

Atmospheric pressure

From 1080 to 795 hPa
(corresponds to an altitude of -1000 to +2000 m)


  • < 50 V

707 V DC test voltage (type test)

  • < 150 V

2200 V DC test voltage

  • < 250 V

2500 V DC test voltage

Electromagnetic compatibility

Requirements of the EMC directive;
interference immunity according to IEC 61000-6-2

  • Pulse-shaped disturbance variables

Test according to:
Electrostatic discharge according to IEC 61000-4-2,
burst pulses according to IEC 61000-4-4,
energy single pulse (surge) according to IEC 61000-4-5,

  • Sinusoidal disturbance variables

Test according to:
HF irradiation according to IEC 61000-4-3,
HF decoupling according to IEC 61000-4-6

Requirements of the EMC directive;
interference emission according to EN 61000-6-4

  • Emission of radio frequency interference

Interference emission according to 61000-6-4

Interference emission of electromagnetic fields according to EN 61000-6-4

Mechanical stress

  • Vibrations

Testing according to EN 60068-2-6
Tested with:
5 Hz ≤ f ≤ 8.4 Hz, constant amplitude 7 mm;
9 Hz ≤ f ≤ 150 Hz, constant acceleration 2 g;
duration of vibration: 10 frequency passes per axis in each direction of the 3 mutually perpendicular axes

  • Shock

Testing according to EN 60068-2-27
Tested with:
strength of shock 15 g peak value, 11 ms duration;
shock direction: 3 shocks each in ± direction in each of the 3 mutually vertical axes

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