Automation TechnologyAutomation Technology

Multi Processor control system SIMATIC TDC

Performance, scalability and flexibility

SIMATIC TDC solves even complex drive, control and technology tasks with maximum quantity frameworks and shortest cycle times on one single platform. The system is used particularly for large plants in the process, energy and drive technology:

  • Metal production and metal processing: Wire-drawing plants, stretcher levelers, bending and straightening machines, presses, circular arc type plants, rolling mills, upsetting devices, shearing and winding machines

  • High Voltage Direct Current Transmission Systems (HVDC)

  • Flexible AC Transmission Systems (FACTS), e.g. Reactive Power Compensation solutions


SIMATIC TDC für High End Technologieaufgaben


The powerful processor modules of SIMATIC TDC allow the processing of maximum quantity frameworks in short cycle times down to 100 µs.


Tailored hardware configurations: From mounting a suitable number of processor modules for synchronous processor operation to the synchronous coupling of whole racks - with SIMATIC TDC the automation system can be scaled modularly over a wide range.


The engineering of even complex control structures is carried out efficiently with the SIMATIC standard languages CFC and SFC and an extensive function block library. The user gets a maximum flexibility by creating own user libraries based on ANSI C code.

Modular system design

SIMATIC TDC is a modular multi-processor system which consists of one or several subracks. The subracks (VMEbus standard) are equipped with processor, periphery and communication modules. For the connection to further automation components SIMATIC TDC supports the communication standards:



  • Industrial Ethernet

SIMATIC TDC System design

Zentralbaugruppe CPU555

Processer Module CPU555

High performance for demanding control tasks based on.

  • 64 Bit-Architecture

  • Basic sampling time from 100 µs

  • PROFINET IRT with 3-port switch

  • Backplane bus with P0 interface for a fast Point–to-Point communication between CPU555 modules

  • Article No.:6DD1600-0BB0

Kommunikationsbaugruppen CP50M0, CP51M1

Communications modules CP50M1 and CP51M1

Powerful communication for.

  • Commissioning

  • Process control

  • Operator control and monitoring

Thereby the following protocols are supported:

Peripheriebaugruppe SM500

Peripheral module SM500

Various possibilities of periphery connection with:

  • 8 analog inputs and outputs

  • 4 integrating analog inputs

  • 16 digital inputs and outputs

  • 4 incremental encoder inputs

  • 4 absolute encoders (SSI/EnDat)

  • Article No: 6DD1640-0AH0


Coupling module CP53M0

The coupling module for easy migration/expansion of SIMADYN D plant with

  • Synchronization of cycle-/clock times

  • Alarms

The coupling to up to two SIMATIC TDCs subracks is also possible.
Article No. :6DD1660-0BJ0

Global Data Memory GDM

Rack coupling-modules GlobalDataMemory (GDM) CP52x0

For synchronized multi computing and coupling of up to 44 racks.
Rack-coupling with the GlobalDataMemory mechanism offers:

  • Central plant data storage / Shared Memory

  • Synchronization of cycle-/clock time

  • Alarms

  • Refresh rates < 1ms (630 MBaud, 200 m)

  • Article No.:
    CP52MO memory module 6DD1660-0BF0
    CP52IO interface module 6DD1660-0BG0
    CP52AO access module 6DD1660-0BH0

Baugruppenträger UR6021

Subrack UR6021

The subrack is the base component of SIMATIC TDC. It allows scalable expansion of hardware with large power reserves

  • 19” system for wall and cabinet mounting

  • 21 slots

  • 64 bit backplane (VMEbus)

  • 8 slots with P0 interface for fast, point-to-point communication between CPU555 modules

  • Extended supply voltage range (AC/DC)

  • Replaceable fan tray

  • Configurable operating hours counter for simplified maintenance planning

  • Article No.: 6DD1682-0CH3