Industrial Control System Upgrades & Retrofits

The right control system upgrade will deliver rapid returns through improved safety & cybersecurity, system reliability, troubleshooting, parts availability, and uptime.

Improve Your Plant’s Efficiency – Smarter Control Systems Start Here

A control system upgrade can transform your entire operation, boosting reliability, safety, cybersecurity, and uptime across your plant. Whether you’re upgrading a single line or modernizing an entire facility, our controls experts can help you build a smarter control architecture with cost-effective, robust solutions tailored to your needs.

A dirty control panel prior to upgrade

Control panel prior to upgrade.

Newly cleaned control system

Upgraded control panel. Our unbiased solutions are designed for modularity and seamless integration to minimize disruption and maximize ROI.

With PolSys as your partner, you can upgrade quickly and efficiently, without sacrificing productivity. We’re not tied to a specific brand or manufacturer, and we can provide ongoing support post-upgrade (including training) to help every step of the way.

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Is Your Control System Holding You Back?

The right modern control system can resolve these system constraints efficiently and cost-effectively.

Clear signs that your controls might be limiting your facility’s performance include:

  • Repeated and/or extended periods of downtime
  • Variability in product quality
  • Time-consuming troubleshooting
  • Difficulty sourcing replacement parts
  • Lack of remote access
  • Limited data integration across the plant
  • Compatibility issues with new software and with communication protocols of other systems
  • Anticipated changes in production processes
  • Planned facility expansion

Why Upgrade Your Control System?

Industrial control system design is vital to the reliability, functionality, and efficiency of thermal oxidizers, scrubbers, and other process equipment. If you’re operating with outdated controls, you’re operating at a major disadvantage. Benefits to upgrading your legacy control system include:

When your thermal oxidizer or scrubber stops working properly, production shuts down and operating costs mount. You also face the repercussions of violating your air permit. Read how our Controls Upgrade at a Chemical Manufacturing Company dramatically increased uptime and cut costs.
Your control system may currently “meet code” based on the date your equipment was installed but could be lacking in key safety improvements. Safety standards in manufacturing have been continuously evolving, and in the United States, the owner of the facility is responsible – and ultimately liable – for site safety.
An upgrade offers powerful innovations like highly specific alarms with first-out annunciation and information screens that feature troubleshooting steps and/or potential root causes. Read how our Controls Upgrade at a Fortune 500 Auto Manufacturer streamlined troubleshooting and increased system reliability.
Upgrading can enhance system performance and improve data collection. Better data leads to better decision-making, so you can adapt to market conditions quickly and cost-effectively.
Many popular legacy control platforms are being phased out of production and are no longer supported by the manufacturer. If you own one of these platforms, upgrading to a new system may be inevitable – especially if your system was designed with custom parts or IC components, or if it relies on older communication protocols.
If your system is connected to the OT network and has limited means of addressing cybersecurity concerns, it leaves other networked devices vulnerable to a cyber security attack. Choose a more robust system with advanced security features for more protection against cyberattacks. The more robust your equipment’s control system, the more safe, efficient, and reliable its performance will be.

What Sets Our Control Services Apart?

Our team combines advanced expertise in industrial control systems with broad mechanical field experience. We’re a single-source service partner unaffiliated with any certain major manufacturer or brand, so we’re capable of understanding the “big picture” at your facility and can offer you the optimal solution for your equipment and needs.

As an independent service company unaffiliated with any specific brands, we offer you:

  • Expert, Agnostic Recommendations
  • Flexible Service Options
  • Cost-Effective, Long-Lasting Solutions
  • Comprehensive Solutions tailored to your specific needs

How to Upgrade Without Downtime

Many existing system setups can be retrofitted or integrated into new control platforms with minimal downtime and disruption. Through planning, protocol alignment, and phased commissioning, you can continue operations without interruption or with minimal downtime. Our solutions:

  • Offer seamless compatibility with your existing infrastructure
  • Include modular design architectures that support scalable growth
  • Bridge technologies that link legacy systems with modern platforms
  • Account for your plant’s downtime tolerances and any manufacturer preferences (e.g., brand standardization)

Control System Upgrades for Air Pollution Control Equipment

For over 30 years, we’ve provided automation solutions designed for air pollution control. No one has more experience with control systems on Regenerative Thermal Oxidizers (RTOs), thermal oxidizers, scrubbers, and other types of emissions equipment.

Control systems for Regenerative Thermal Oxidizers (RTOs) are a special focus. An RTO’s control system oversees key operations, including poppet valve switching, temperature, retention times, and much more. If your RTO’s control system is not properly programmed – or if it has been improperly adjusted to correct for another issue – it can cause reliability, safety, and compliance issues.

Related Controls Case Studies

Control System Upgrade Ends RTO Shutdowns for Chemical Plant

A major chemical manufacturer operating 24/7 faced frequent shutdowns due to a failing legacy control system on their Regenerative Thermal Oxidizer (RTO). These disruptions led to costly permit violations and production losses. To address these critical issues, we delivered a fast, customized control system upgrade that significantly improved reliability, compliance, and overall operational efficiency.

RTO Control System Upgrades for Fortune 100 Auto Manufacturer

A global Fortune 100 automotive manufacturer faced major operational challenges due to outdated PLC and HMI hardware in their 4 Regenerative Thermal Oxidizers (RTOs). These legacy systems not only risked future manufacturer support but also contributed to unplanned downtime and inefficiencies. Read how our turnkey control system upgrade delivered robust, reliable performance—minimizing downtime, improving responsiveness, and streamlining operations.

Process Heating Article: Do You Have Control Issues?

This expert article — written by us and featured in Process Heating magazine — highlights five common but often overlooked issues with industrial control systems on air pollution control equipment. Drawing from real-world experience that includes a case study, it explains why these “hidden” problems can lead to costly downtime or compliance risks—and why an upgrade may be the smartest next step.

Related Articles

How to Troubleshoot Your PLC: 10 Pro Tips

Unfortunately, troubleshooting a PLC that won’t communicate effectively with other devices can be challenging, time-consuming, and costly. So where should you start and what steps should you follow?

Control Systems: Small Issues That Cause Big Problems

Even "minor" control system issues—like clogged filters, loose connections, etc.—can shut down production. Our Sr. Controls Engineer describes five “easy-to-miss issues” that he often finds.

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