Why choose C&M Engineering

Because end-users look for more than an equipment supplier. C&M stands by its clients over the entire plant lifecycle, delivering professional services to ensure safe, stable, and efficient operations.

Siemens S7-300 PLC


A graded CPU range with a wide performance range is available for configuring the controller. Thanks to their high processing speed, the CPUs enable short machine cycle times. The narrow module width results in a compact controller design or a small control cabinet.


The CPUs are available from a width of only 40 mm. Fail-safe CPUs are available for safety-oriented applications. The PROFIsafe profile for safe communication via PROFIBUS and PROFINET allows the integration of safety-related functions into standard automation environments.


Compact CPUs with width of 80 or 120 mm also offer integral I/O and integral technological functions. This onboard I/O (digital/analog) and the technological functions save additional investments in other modules.

Applications include the following:

  • High-speed counting/measuring with direct access to the hardware counter
  • Simple positioning with direct control of the MICROMASTER frequency inverter
  • PID control with integral function block


This range is rounded off by a special technology CPU with powerful technological function, especially for motion control.


Together with the integral digital I/O and equidistant and isochronous mode on PROFIBUS DP, off-the-shelf, PLCopen-compliant motion control of several (even linked) axes.


Micro Memory Card



The Micro Memory card is a compact medium that meets the highest industrial requirements, especially ESD protection and mechanical ruggedness.


The system-tested Micro Memory Card Allows more write cycles than conventional memory cards and offers know-how protection because the serial number can be read out.


Version CPU
Isochronous mode on the PROFIBUS
Integrated interfaces Integral I/O Integrated technological functions
Standard CPUs
  CPU 312, 314 1)   MPI    
CPU 315-2 DP 1)   MPI, DP
CPU 315-2 PN/DP 1)
CPU 317-2 DP
CPU 317-2 PN/DP 1)
  NEW CPU 319-3 PN/DP
Failsafe CPUs
  CPU 315F-2 DP 1)   MPI, DP   Fail satety with PROFIsafe profile
CPU 315F-2 PN/DP
CPU 317F-2 DP 1)
CPU 317F-2 PN/DP
CPU 319F-3 PN/DP
Compact CPUs
  CPU 312C 1)   MPI Digital Counting
Frequency measurement
Pulse width modulation
Pulse generator
CPU 313C 1)   MPI Digital, Analog
CPU 313C-2 PtP   MPI, PtP Digital
CPU 313C-2 DP 1)   MPI, DP Digital
CPU 314C-2 PtP 1)   MPI, PtP Digital, Analog

As above, and additionally

CPU 314C-2 DP 1)   MPI, DP Digital, Analog
Technology CPUs
  CPU 315T-2 DP   DP/MPI, DP(DRIVE) Digital Synchronous operation
Traversing to fixed stop
Pressure mark correction
Cam control
Controlled positioning
CPU 317T-2DP   DP/MPI, DP(DRIVE) Digital



Automation consultancy

To discuss your industrial automation, instrumentation and controls related problem, or to arrange a site-visit

Call: 0300-5776703, or e-mail us at This email address is being protected from spambots. You need JavaScript enabled to view it.

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Design Services

Native RTL SupportC&M Engineering will design your system to your requirements and hardware preferences. C&M''s automation experts can design, upgrade, customize and troubleshoot your system

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Docs / Support

Docs / SupportIn addition to comprehensive documentations in PDF format, you also get AUTOCAD drawings and your control software's for back-up purposes.

Consultancy services

Easy to startWe offer technology, industry expertise and business process best practices that will enable you to empower your workforce and achieve breakthrough levels of customer satisfaction, organizational effectiveness, worker productivity, and profitability.

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