Proseq provides specialist S7 and TIA Portal upgrade services to help industrial operations transition safely from legacy Siemens PLC platforms to modern, supported control systems. We manage upgrades end-to-end — minimising risk, downtime, and disruption while improving reliability, maintainability, and long-term supportability.

Working across brownfield and live production environments, we deliver structured, well-tested upgrades that align with operational and safety requirements.

Many facilities still rely on older Siemens S7 platforms that are becoming increasingly difficult to support due to hardware obsolescence, software compatibility issues, and limited spare parts availability.

Upgrading to TIA Portal delivers:

• Improved system reliability and performance

• Ongoing vendor support and software compatibility

• Easier maintenance and fault finding

• Enhanced diagnostics and visibility

• A scalable platform for future expansion

Proseq ensures upgrades are planned and executed with minimal impact on production.

We follow a structured, low-risk methodology tailored to each site:

Assessment & Planning

• Review of existing S7 hardware, software, and field I/O

• Risk assessment and upgrade pathway definition

• Obsolescence and compatibility analysis

• Migration strategy aligned with operational constraints

Software Migration

• Conversion of legacy S7 programs into TIA Portal

• Code optimisation and standardisation

• Alarm, diagnostics, and HMI integration where required

• Version control and documentation

Hardware Upgrade

• PLC, rack, and communication module upgrades

• Switchboard modifications where required

• Network and interface validation

• Compliance with current standards

Testing & Commissioning

• Offline testing and simulation

• Site commissioning and validation

• Production support during cutover

• Operator handover and documentation

Upgrading a live production system requires experience and discipline. Proseq has extensive experience delivering brownfield S7 upgrades in operational facilities where downtime must be tightly controlled.

We work closely with site teams to:

• Stage upgrades around production schedules

• Reduce commissioning windows

• Maintain safety and compliance throughout

• Provide rapid on-site and remote support

TIA Portal upgrades often form part of a broader automation environment. Proseq ensures seamless integration with:

• Existing HMIs and SCADA systems

• Field instrumentation and drives

• Safety systems (where applicable)

• Plant networks and remote access infrastructure

Following upgrade completion, Proseq provides:

• Ongoing technical support

• Preventative maintenance

• System backups and version management

• Upgrade documentation and asset registers

This ensures your upgraded system remains reliable, supported, and easy to maintain.

• Proven experience with Siemens S7 platforms

• Strong process engineering and automation capability

• Structured, low-risk upgrade methodology

• Practical experience in live industrial environments

• Clear communication and documentation

Proseq partners with clients to deliver safe, reliable, and future-ready automation systems.

• If you’re operating a legacy S7 system or planning a transition to TIA Portal, Proseq can help assess your current setup and define the right upgrade pathway.

  📩Contact us to discuss your S7 / TIA Portal upgrade requirements.