SCADA Upgrades
Modernise Ageing SCADA Systems Without Unnecessary Disruption
SCADA systems play a critical role in providing operators and engineering teams with visibility across industrial processes. As these systems age, however, outdated software, unsupported operating systems, obsolete hardware and limited communication capabilities can increase operational risk and make systems increasingly difficult to maintain.
A planned SCADA upgrade allows businesses to modernise their supervisory control environment while protecting existing automation investments and minimising disruption to production.
At Stratos, we upgrade and modernise existing SCADA systems to improve reliability, usability, connectivity and long-term support. From replacing obsolete SCADA platforms to upgrading operator interfaces and communications, our engineers develop practical migration strategies around your existing operation.
When Should a SCADA System Be Upgraded?
A SCADA system may continue operating long after the underlying technology has become outdated.
Signs that an upgrade should be considered include:
• Unsupported SCADA software.
• Obsolete server or workstation hardware.
• Unsupported operating systems.
• Increasing system faults.
• Poor communication reliability.
• Difficulty integrating new equipment.
• Limited historical data capabilities.
• Outdated operator interfaces.
• Inadequate alarm management.
• Difficulty sourcing technical support.
Addressing these issues proactively can reduce the risk of an unexpected system failure forcing an emergency upgrade.
SCADA Software Upgrades
SCADA software evolves alongside operating systems, industrial communication technologies and automation platforms.
Older installations can become increasingly difficult to maintain as software versions reach the end of manufacturer support.
A SCADA software upgrade may include:
• Migrating to a supported SCADA platform.
• Updating existing SCADA applications.
• Migrating project databases.
• Rebuilding communications.
• Updating tags.
• Reconfiguring alarms.
• Migrating historical data where appropriate.
• Updating user access and permissions.
The objective is to retain valuable existing functionality while creating a more maintainable and supportable system.
SCADA Hardware Modernisation
The computers, servers and networking equipment supporting a SCADA system also have a finite operational life.
Modernisation may involve replacing:
• SCADA servers.
• Operator workstations.
• Industrial PCs.
• Network equipment.
• Communication interfaces.
• Data storage systems.
• Backup infrastructure.
Upgrading ageing hardware reduces the risk of equipment failure while providing a stronger foundation for modern SCADA software.
Modernising SCADA Operator Interfaces
Older SCADA systems often contain screens that have developed gradually over many years.
This can result in inconsistent layouts, excessive information and alarm-heavy displays that make it difficult for operators to quickly understand process conditions.
An upgrade provides an opportunity to improve:
• Screen layouts.
• Navigation.
• Equipment status indication.
• Alarm visibility.
• Process trends.
• Diagnostic information.
• Operator workflows.
• Consistency across production areas.
The aim is not simply to make screens look newer, but to make operational information easier to understand and act upon.
Improving SCADA Alarm Management
SCADA upgrades provide an opportunity to review how alarms are generated, prioritised and displayed.
Improvements may include:
• Alarm rationalisation.
• Priority classifications.
• Removal of unnecessary alarms.
• Improved alarm descriptions.
• Historical alarm recording.
• Operator acknowledgement.
• Improved fault diagnostics.
• Alarm trend analysis.
Better alarm management helps operators identify genuinely important events more quickly and reduces the risk of critical conditions becoming lost amongst unnecessary notifications.
Upgrading SCADA Communications
Older SCADA installations may rely on communication technologies that limit integration with modern PLCs and industrial equipment.
A SCADA upgrade may introduce or improve communication using technologies such as:
• PROFINET.
• EtherNet/IP.
• Modbus TCP.
• OPC UA.
• Industrial Ethernet.
• Modern communication gateways.
Improved communications can make it easier to integrate new machines and automation equipment as the facility develops.
Integrating New PLCs and Equipment
SCADA upgrades are often required as part of wider automation modernisation projects.
For example, replacing an obsolete PLC may require changes to:
• SCADA tags.
• Communications.
• Alarm configuration.
• Operator screens.
• Historical data.
• Equipment control.
• Network architecture.
By considering PLC and SCADA upgrades together, businesses can create a more coordinated modernisation strategy and reduce unnecessary engineering work.
Improving Historical Data and Reporting
Modern SCADA platforms can provide significantly greater access to operational information than many older systems.
An upgrade can improve the collection and analysis of:
• Production data.
• Process trends.
• Alarm history.
• Equipment performance.
• Downtime information.
• Energy consumption.
• Maintenance information.
This gives engineering and production teams better information for identifying recurring problems and improving operational performance.
Phased SCADA Upgrades
Replacing an entire SCADA environment at once is not always practical.
Where appropriate, upgrades can be phased around production requirements.
A phased approach may involve:
• Assessing the existing system.
• Identifying obsolete or high-risk components.
• Developing the target SCADA architecture.
• Upgrading servers and infrastructure.
• Migrating PLC communications.
• Updating operator interfaces.
• Testing individual production areas.
• Completing final commissioning.
This approach can reduce operational disruption while allowing businesses to spread modernisation across planned shutdowns or investment periods.
Testing and Commissioning SCADA Upgrades
SCADA upgrades should be comprehensively tested before the modernised system is placed into full production.
Testing may include:
• PLC communication verification.
• Tag validation.
• Operator screen testing.
• Alarm verification.
• Historical data checks.
• User access testing.
• Network communication.
• Functional testing.
• Site Acceptance Testing.
• Final commissioning.
This ensures the upgraded system accurately reflects and controls the underlying industrial process.
Why Choose Stratos for SCADA Upgrades?
SCADA modernisation requires an understanding of both the supervisory system and the automation equipment beneath it.
Stratos combines experience in SCADA engineering, PLC programming, industrial communications and control systems to develop upgrade strategies that consider the complete automation environment.
Whether your existing SCADA system has become obsolete, difficult to maintain or unable to support new production requirements, our engineers can help you develop a practical route towards a modern, reliable and maintainable system.
Modernise Your SCADA System with Confidence
An ageing SCADA system shouldn't become a risk to production. Stratos provides structured SCADA upgrade and modernisation services that improve reliability, operator visibility and long-term support while protecting your existing automation investment. Speak to our engineers about developing a SCADA upgrade strategy around your operation.
Frequently Asked Questions
When should a SCADA system be upgraded?
A SCADA upgrade should be considered when software or hardware becomes unsupported, reliability declines, integration becomes difficult or the existing system no longer provides the functionality required by the operation.
Can a SCADA system be upgraded without replacing the PLCs?
Yes. In many cases, the SCADA platform can be upgraded while retaining existing PLCs and field equipment, provided suitable communications and compatibility can be maintained.
Can you upgrade an obsolete SCADA system?
Yes. Obsolete SCADA systems can often be migrated to modern, supported platforms while retaining important process functionality, operator information and existing automation infrastructure where appropriate.
Can a SCADA upgrade be completed without stopping production?
This depends on the existing architecture and scope of the project. Where possible, upgrades can be phased, tested offline and implemented during planned production windows to minimise disruption.
What happens to existing SCADA screens and historical data?
Existing screens, tags, alarms and historical data are assessed during the upgrade. Depending on the existing and target platforms, they may be migrated, rebuilt or improved as part of the modernisation project.