Process automation and software development

In modern industrial automation, process automation is essential for meeting increasing demands for throughput, quality and flexibility. Frequenz Elektro GmbH's innovative programmable logic controllers (PLCs) and customised software solutions can revolutionise your production processes and ensure your industrial plant is fit for the future.

We offer integrated, complete solutions from a single source.

Our experienced team combines in-depth industry knowledge with extensive project experience in almost all sectors. We offer you:

  • We offer individual software development, providing tailor-made solutions to optimise your processes.
  • We are a full-service provider for PLC and control cabinet construction. We provide software development, control cabinets and cabling, all from a single source.
    Why Frequenz Elektro GmbH?
  • Comprehensive expertise: Take advantage of our in-depth knowledge of process and industrial automation and software development.
  • Increased efficiency: We eliminate unnecessary interfaces and reduce the complexity of your systems by integrating PLCs, customised software and optimal control cabinet design.

Rely on Frequenz Elektro GmbH, your one-stop shop for process automation and software development. Get in touch to find out how we can help you future-proof your industrial plant with intelligent automation solutions and optimise your production processes.

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Programmable Logic Controller (PLC): programmed for progress

Speicherprogrammierbare Steuerung für Prozessaustomation in der Industrie

The transition from hard-wired relay and contactor controls to modern PLC technology was revolutionary for industrial automation. Today, PLCs are smaller, more flexible, more powerful and more cost-effective in the long term, setting new standards in process automation. Choose the programmable logic controller (PLC) from Frequenz Elektro GmbH for flexible, efficient and future-proof process automation solutions. Contact us now to discuss your requirements and discover how our PLC solutions can transform your industrial processes!

Why choose a PLC from Frequenz-Elektro GmbH?

If you're looking for cutting-edge solutions that prioritise security, availability and robustness, you've come to the right place. Our experienced team can advise on all hardware and software issues, develop customised concepts and handle the entire engineering process. We can also integrate complementary components for process visualisation, as well as customised PC, mobile and web applications, upon request. As a Siemens Solution Partner, your industrial plant will benefit from exclusive expertise and tangible advantages.

The all-round PLC: no boundaries, no limitations

Our PLC systems consist of one or more powerful controllers, comprising both hardware and software, as well as field devices containing sensors and actuators. This technology enables:

  • Minimised wiring effort and compact space requirements through complex process coordination.
  • Maximum flexibility: Changes to processes only require adjustments to the control software rather than rebuilding the control cabinet entirely.

Since the 1970s, PLC technology has become established in virtually all industries, including packaging systems, production lines and filling systems for radiopharmaceuticals, as well as building automation systems. Our development team has created bespoke solutions for each industry.

Process and project flow: from requirements analysis to commissioning

If you are not handling the planning yourself, your project will begin with the submission of functional requirements in a specification document. We will clarify this:

  • Which data should be collected using sensors?
  • Which participants should be monitored?
  • How do individual actions interact?

Based on this, we will create a detailed functional plan and develop the necessary control software and process visualisation solutions. We oversee the entire engineering process, from planning to commissioning, and are available to provide service at any time following functional testing and acceptance.

Safety, quality and service: the advantages of our PLC solution.

Our advantages at a glance:

  • We are ISO 9001 certified. We consistently manage quality.
  • Siemens Solution Partner: Benefit from exclusive expert knowledge.
  • Maintenance contracts with defined response times: Minimise downtime and ensure your system is operational.
  • High availability: We can design the control system redundantly upon request to guarantee maximum system availability.

Choose the programmable logic controller (PLC) from Frequenz Elektro GmbH for flexible, efficient and future-proof process automation. Contact us now to discuss your requirements and discover how our customised PLC solutions can transform your industrial processes!

Process visualisation: monitoring, controlling and maintaining systems

 Process visualization expert installs system on plant

Modern process visualisation transforms the traditional 'black box' of a programmable logic controller (PLC) into an intelligent human-machine interface (HMI), providing complete transparency and control over your processes. Without specialised software, a PLC system can only determine whether it is functioning properly. Only with our customised visualisation solutions can you monitor, analyse and actively manage control processes. Rely on our expertise in process visualisation to efficiently monitor, control and maintain your plants with maximum security and transparency.

Maximum control and efficiency with all processes in view

Invest in PLC technology to ensure high efficiency and quality standards while retaining control over your processes. Our visualisation software provides an intuitive interface for your PLC, offering feedback on key parameters such as pressure, temperature, alarms and faults, trends and archiving, in text, graphic or acoustic form. These custom-developed user interfaces enable you to control your processes in near real time - a 'control of the control' - which is particularly essential in complex energy or pharmaceutical plants.

Our most advanced solutions include fully integrated control systems with multiple PCs, operator stations and interfaces to third-party systems, enabling data exchange via standardised protocols. Furthermore, our solution offers seamless user management, enabling you to track who performed which actions on your system and when at any time – a crucial security feature.

Flexible HMI solutions: panel or client

Choose between an ideally positioned touch panel directly on your machine or production line, and a PC-based interface. Our software development team can tailor HMI solutions precisely to your requirements, even combining multiple PLCs into a single visualisation system. For industrial applications where environmental conditions require specialised hardware, Frequenz Elektro GmbH provides ready-to-use, complete modules for process visualisation.

You can rely on our expertise in process visualisation to efficiently monitor, control and maintain your systems with maximum security and transparency.

Retrofit and migration of existing systems: the time has come to modernise your systems

Specialists in the modernisation, retrofitting and migration of PLCs.

Modernising existing systems is essential for companies to remain competitive, efficient and safe. Reasons for retrofitting existing systems — colloquially referred to as 'migration' — include lower productivity, outdated control systems, a lack of available spare parts, and the need for modern process automation. Frequenz Elektro GmbH provides comprehensive support for retrofitting old PLC and hard-wired systems, using state-of-the-art control technology and engineering solutions. Rely on retrofitting and system modernisation to optimise your existing systems efficiently and secure your company's competitiveness. Contact us today for a customised quote!

Modernisation instead of a complete overhaul

Our retrofit strategy is based on an analysis of your current system:

  • Hardware and software migration: Where possible and economically viable, we will modernise your existing systems. This enables you to reap the benefits of new programmable logic controllers (PLCs) without having to invest in an entirely new system.
  • Selective add-ons: For systems where the hardwired control system is still functioning adequately, we add modern PLC solutions selectively. This approach maintains the existing infrastructure while optimising critical processes.

Plant optimisation with and without PLC

A classic example of retrofit migration is replacing older PLC generations, such as the Siemens Simatic S5 or S7-300/400, with modern systems like the Simatic S7-1500. Even if the older controllers are still operating reliably, the necessary specialised knowledge and spare parts are often unavailable, which can lead to long-term problems. Our experts have over 30 years' experience in process automation and software development, and are well acquainted with the challenges posed by older systems.

  • Complete migration: We replace outdated PLC systems with modern, flexible controllers to make your plant more efficient and powerful.
  • Partial migration: We retrofit hard-wired modules that are still functional selectively to avoid a complete conversion.

Our project process involves analysis, planning and implementation

We begin our retrofit projects with a detailed analysis of the current situation:

  • We begin our retrofit projects with a detailed analysis of the current situation.
  • Compatibility testing: Our experts assess whether new technology is compatible with the existing environment, determining whether only software replacement is required, if hardware is also necessary, or if comprehensive engineering rework is needed.
  • A customised, future-proof solution: We will work with you to develop a bespoke solution that allows for future development. If it turns out that a completely new control system would be more cost-effective than migration, our experts will advise you.

Your partner for retrofitting in industrial automation

Frequenz Elektro GmbH is your reliable retrofit partner, with reference projects spanning a range of industries. Thanks to our comprehensive expertise in PLC technology, process automation and engineering, we can guarantee that your systems will be modernised and future-proofed, and that you will benefit from optimised processes and lower operating costs in the long term.

Choose retrofitting and system modernisation to efficiently optimise your existing systems and ensure your company's competitiveness. Contact us today for a customised quote!

Fieldbus systems: solutions for industrial communication and process automation

 Connecting decentralized and centralized components with fieldbus systems

Fieldbus systems are the essential transmission paths in modern industrial plants. They facilitate the effective management of actuators and sensors, playing an indispensable role in manufacturing automation, building automation, and process control. Whether used to supplement a programmable logic controller (PLC) in process plants or as a standalone solution in building technology, fieldbus systems reliably and efficiently connect both decentralised and centrally controlled components.

However, due to the multitude of fieldbus types and manufacturers, as well as different standards, planning and implementing these systems requires in-depth market knowledge and specialised expertise. Frequenz Elektro GmbH offers impartial consultancy and proven implementation expertise in numerous industrial projects.

What are fieldbus systems, and how do they work?

Fieldbus systems are used to network both decentralised and centralised devices within a system. They securely connect field devices, such as sensors and actuators (e.g. drives, switches and motors), to control devices. A typical fieldbus topology consists of several intelligent central or decentralised stations.

Industrial fieldbus systems are standardised worldwide according to IEC 61158 and assigned to various protocol families. Commonly used fieldbus types include Profinet in industry and the KNX standard (the successor to EIB) in building automation.

Advantages of fieldbus communication:

A key advantage of fieldbus systems is that they reduce cabling effort. Rather than connecting each sensor to the controller via a complex parallel cabling system, a decentralised fieldbus station consolidates all connections, requiring only a single fieldbus cable. This improves reliability and efficiency.

Additionally, wiring between individual fieldbus devices often does not require separate infrastructure. In some cases, existing Ethernet cables can be incorporated into structured cabling. Local conditions therefore determine whether and how a fieldbus solution can be implemented.

Our process automation and software development experts design flexible network topologies that meet all industrial cabling requirements.

Industrial software solutions that evolve alongside your needs

At Frequenz Elektro, our experts plan bespoke software solutions.

At Frequenz Elektro GmbH, we develop customised industrial software solutions that are specifically tailored to the requirements of modern process automation. Our expertise in software development, combined with in-depth engineering knowledge, enables us to create bespoke software for industrial companies that goes far beyond standard products. Contact us today to find out how our industrial software solutions can optimise your processes, utilise your data intelligently, and future-proof your company.

Innovative software for industrial processes

Efficient preparation and processing of data is crucial in today's industrial automation. Traditional solutions often struggle to seamlessly link PLCs (programmable logic controllers) with other software components. Our specialised PC, mobile and web applications bridge this gap by visualising, controlling and monitoring processes for comprehensive control and reporting.

Future-proof technologies and generational change

As new generations enter the workforce, the importance of mobile devices such as tablets and smartphones in industrial software is increasing. We develop future-proof solutions that:

  • enable remote maintenance of production systems
  • provide access to relevant parameters at any time via mobile apps and web applications
  • and optimise the integration of PLC-based application scenarios.

Store, evaluate and visualise data

Our applications provide powerful tools for storing, archiving, analysing and presenting your data graphically. These capabilities are essential for effective energy management, efficient control and precise reporting. Whether you need to export data generated from your process automation to databases or common formats such as Excel, our solutions will make the most of your data.

Everything from a single source

Rather than contracting different providers for software development, PLC integration and engineering, Frequenz Elektro GmbH provides all components from a single source. Our team combines development expertise with extensive project experience across virtually all industries, including packaging systems, production lines, and building automation systems. This means your customised software solution will grow with your needs, both now and in the future.

Achieve more together with Frequenz Elektro GmbH, your solution partner

Thanks to our cooperation with Siemens, Frequenz-Elektro GmbH can offer excellent automation solutions.

At Frequenz Elektro GmbH, we offer a comprehensive package of energy technology, process automation and building automation services, providing everything you need for your project from a single source. By bringing together numerous resources and building a well-established network, we are able to work closely with strong, reliable partners. Our employees undergo regular training with our partner companies and possess the necessary specialised knowledge to implement their solutions optimally. Our customers benefit from our intensive cooperation with Siemens, especially in the area of PLC automation, for example through knowledge advantage and extended support.

Stability through strong partnerships

We understand our customers' requirements, knowing that safety, reliability and availability are top priorities in many industries. We have therefore established stable partnerships with leading providers in the field of PLC and building automation control. Working alongside our partners, we can support you in refining your products and systems, as well as outsourcing your engineering services. This will allow you to focus entirely on your core competencies.

Siemens Solution Partner: expertise that speaks for itself.

As a Siemens Solution Partner, Frequenz Elektro GmbH has in-depth knowledge of Siemens products and systems. Siemens provides the hardware and basic systems, which our software developers then customise to your requirements, handling the entire engineering process. Our certification as a Siemens Solution Partner — one of only a few companies in Saxony to hold this accreditation — guarantees excellent product knowledge, ongoing training activities and the successful completion of prestigious projects.

The benefits you enjoy as a customer:

  • Our staff are trained to an advanced level and are always up to date with the latest technology.
  • Certified competence in accordance with globally uniform quality standards.
  • We have proven expertise and experience in selecting, applying and implementing automation components to meet the needs of your industry.
  • Providing extended support during project implementation.
  • Proven project experience

Choose Frequenz Elektro GmbH as your partner for innovative energy technology, process automation and building automation solutions. By working together, we can achieve more, ensuring stability, security and efficiency through our strong partnerships and comprehensive expertise.

Cybersecurity in industrial environments

A technician protects companies from cyberattacks and threats.

In the networked world of Industry 4.0, cybersecurity is essential for both programmable logic controllers (PLCs) and industrial plants. The growing digitalisation and integration of IT and OT systems increases the potential for cyber threats to exploit vulnerabilities. Attacks on industrial control systems can cause production downtime and result in significant economic damage and security risks. Older systems, which were originally developed without security features, are particularly vulnerable to such threats.

The IEC 62443 series of international standards offers a systematic method for safeguarding industrial automation and control systems. This includes implementing defence-in-depth strategies and segmenting networks into security zones. Additionally, new EU directives such as NIS2 and the Cyber Resilience Act require companies to enhance their operational technology (OT) security and conduct regular risk analyses. Therefore, a comprehensive security concept that incorporates technical and organisational measures is essential to ensure the availability and integrity of production facilities. Proactive security strategies enable companies to protect their facilities and meet increasing regulatory requirements.

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