Brownfield Automation & Plant
Modernization Solutions

Modernize existing industrial plants with automation migration, system upgrades, obsolescence replacement,
performance improvement and digital transformation solutions. Precise Industrial Solutions helps
manufacturers upgrade installed automation systems while working within the requirements of
existing plant infrastructure. From legacy PLC and HMI systems to SCADA, networking and plant-level
connectivity, we support modernization initiatives designed to improve reliability, visibility and
operational performance.

Modernize Existing Industrial Plants

Existing plants often operate with automation systems installed over many years. As technologies become obsolete, spare parts become difficult to source and newer systems need to integrate with older infrastructure, modernization becomes an important part of maintaining plant operations.
Our Brownfield Automation Solutions are designed around the existing plant environment and can support

Extend the Value of Your Installed Automation

Modernization does not always require replacing an entire automation infrastructure.

A structured approach can identify existing systems that can be retained, upgraded, migrated or replaced according to operational requirements.

Assess

Understand the existing automation architecture, installed systems and modernization requirements.

Plan

Develop an appropriate migration or upgrade strategy while considering plant operations and system dependencies.

Upgrade

Implement new automation hardware, software, networking and control technologies where required.

Integrate

Connect upgraded systems with existing equipment, machines and plant-level systems.

Commission

Test and commission the upgraded automation environment to support the transition into operation.

Automation Migration for Legacy Systems

Legacy automation systems can become difficult to maintain as hardware and software reach the end of their practical lifecycle.
Automation Migration can involve transitioning from older automation technologies to newer platforms while considering existing plant requirements.

Migration projects may include:

PLC & HMI Modernization

PLC Migration

Upgrade or migrate legacy PLC systems to newer automation platforms based on the plant’s control requirements.

HMI Upgrade

Modernize operator interfaces to improve visualization, diagnostics, alarm handling and access to relevant machine or process information.

SCADA Migration

Upgrade or migrate existing SCADA platforms to support improved monitoring, visualization and system integration.

WinCC Migration & Upgrade

Support applicable migration and upgrade requirements for Siemens WinCC-based environments.

Upgrade Existing Production Systems

Modernization can also support plants that need to integrate new machines, equipment or production technologies with existing automation.

Legacy System → New Automation → Machine Integration → Production Monitoring → Plant Connectivity

This approach can help existing facilities adopt newer technologies without treating every modernization requirement as a completely new automation project.

Transform Brownfield Plants With Digitalization

Plant modernization increasingly extends beyond replacing automation hardware.

Existing systems can be progressively connected to digital technologies to support a more connected manufacturing environment.

Industrial Digitalizations

IT–OT Integration

Industrial Data Analytics

Connected Factory

Edge Computing

Key Brownfield Modernization Challenges We Address

Automation Obsolescence

Replace aging automation components and systems with supported technologies.

Legacy PLC Systems

Support migration and upgrades of installed PLC platforms.

Outdated HMI & SCADA

Modernize visualization and monitoring systems.

Disconnected Systems

Improve communication between automation systems and relevant plant infrastructure.

Limited Production Data

Enable appropriate data acquisition and production monitoring.

Difficult System Integration

Connect upgraded automation with existing equipment and systems.

Modernize Without Losing Sight of Production

Brownfield projects require careful consideration of existing operations.

A modernization approach should account for:

This helps create a structured transition from legacy automation toward a more modern control and digitalization environment.

Siemens Automation Modernization

As a Siemens-authorised solution partner, Precise Industrial Solutions can support modernization projects involving relevant Siemens automation technologies.

Depending on the installed system and project scope, modernization may involve

The appropriate migration strategy depends on the existing automation platform, plant architecture and customer requirements.

Our Brownfield Modernization Approach

Existing System Assessment

Review the installed automation environment and modernization requirements.

Migration Strategy

Define the required upgrade, migration or replacement approach.

Automation Engineering

Develop the required control, HMI, SCADA and networking architecture.

System Integration

Integrate upgraded systems with existing equipment and plant infrastructure.

Testing & FAT

Validate system functionality before deployment where applicable.

Commissioning

Implement and commission the upgraded automation system.

Lifecycle Support

Provide ongoing support for modifications, troubleshooting and future upgrades.

Brownfield-Focused Approach

Modernization strategies are developed around the existing plant environment.

Siemens Automation Expertise

Experience with relevant Siemens automation technologies and platforms.

Integrated Modernization

PLC, HMI, SCADA, networking, control and digitalization requirements

Migration & Upgrade Support

Support for legacy system migration, upgrades and obsolescence replacement.

Lifecycle Perspective

Modernization can be planned with future connectivity, monitoring and expansion requirements in mind.

Brownfield Modernization Solutions

Frequently Asked Questions

What is brownfield automation?
Brownfield automation refers to upgrading, modifying or integrating automation systems within an existing industrial plant rather than building an entirely new automation infrastructure.
Automation migration involves transitioning an existing automation system to a newer platform or technology while considering the installed plant infrastructure and operational requirements.
Modernization can address aging equipment, automation obsolescence, limited connectivity, maintenance challenges and the need for improved monitoring or digitalization.
Yes. PLC migration can be part of a brownfield modernization project, depending on the installed PLC platform, control architecture and migration requirements.
Yes. Existing SCADA environments can be upgraded or migrated depending on the platform, software version, system architecture and project requirements.
Yes. After or alongside automation upgrades, existing plants can be connected to appropriate monitoring, data acquisition, analytics and IT–OT integration solutions.
Not necessarily. A modernization strategy can determine which systems should be retained, upgraded, migrated or replaced based on the existing plant and project objectives.

Ready to Modernize Your Existing Plant?

Upgrade legacy automation, address obsolescence and build a more connected manufacturing environment with automation migration, system upgrades, brownfield modernization and digital transformation solutions.
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Established in 2010, Precise Industrial Solutions delivers Siemens-based Industrial Automation, Engineering, and Plant Digitalization solutions, helping industries connect systems, modernize operations, and build smarter manufacturing environments.

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