Control System Upgrades & Legacy Migration Services

Upgrading aging automation systems is one of the highest-value actions an industrial facility can take to protect uptime, maintain safety, and prepare for future expansion. As hardware platforms reach end-of-life, replacement parts become scarce, operating systems lose support, and downtime risk increases dramatically.

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At Sis Automations, we deliver full turnkey control system upgrade services — from hardware migration to PLC logic conversion, HMI modernization, SCADA updates, and on-site commissioning.

Modernizing your control system provides major operational benefits:

Higher reliability with new PLCs, drives, and industrial PCs
Reduced downtime caused by obsolete or failing hardware
Improved cybersecurity with modern, supported operating systems
Better operator visibility through modern HMIs and SCADA graphics
Lower maintenance costs and easier spare-part availability
Increased safety through integration of modern safety controls

We specialize in upgrading outdated and discontinued platforms such as:

Allen-Bradley (Rockwell Automation)

PLC-5
SLC-500
MicroLogix
PanelView Standard
FactoryTalk View (old versions)

Siemens

S7-300
S7-400
OP/TP classic panels
WinCC Flexible / older WinCC versions

Other Systems

Wonderware InTouch legacy
Unsupported industrial PCs
Old Windows Server and Windows XP/7 SCADA systems

We offer fully engineered upgrades including:

PLC conversion to ControlLogix, CompactLogix, or Siemens S7-1200/1500
HMI migration to FactoryTalk View SE/ME or WinCC Unified
SCADA modernization to current platforms with updated servers
Drive and motor control upgrades (Siemens, Rockwell, ABB)
Industrial networking modernization (EtherNet/IP, PROFINET)
Full documentation updates (electrical drawings, I/O lists, P&IDs)

Site evaluation – assess current hardware and risks
Documentation review – collect drawings, backups, and part lists
Migration plan – staged or full replacement
Panel build & programming – PLC, HMI, SCADA development
Testing & FAT – ensure full functionality before installation
On-site cutover – safe migration and startup
Training & support – operator and maintenance training

30–60% reduction in downtime
Consistent product quality
Faster troubleshooting with better diagnostics
Secure, reliable control architecture
A system ready for future automation, analytics, and expansion

Why SCADA Integration Matters

This text briefly introduces visitors to your main services.

Commissioning

Pitfall: Lack of detailed planning, inadequate documentation, or incomplete specifications can lead to misunderstandings, errors in design, and misaligned expectations Consequences: This can result in system malfunctions, inefficient operation, or even complete system failure. It may also lead to costly delays and the need for rework. Prevention: Ensure thorough planning, clear documentation, and communication among all stakeholders. Use checklists and detailed commissioning plans.

Why Choose Us

benefit 1. Custom-Engineered for Your Process — Not Cookie-Cutter Code

We don’t reuse generic PLC templates. Every control logic we design is engineered around your unique process, equipment, and safety standards — ensuring smoother startup, higher efficiency, and easier future expansion.

benefit 2. Fast Commissioning with Zero-Downtime Philosophy

Our structured programming, simulation testing, and on-site validation minimize commissioning delays. Clients experience faster go-live and less downtime, saving both production time and maintenance costs.

benefit 3. Future-Proof, Scalable Architecture

We build modular, well-documented code that supports upgrades, expansions, and integration with Industry 4.0 platforms. That means your automation investment keeps delivering value for years to come — no full reprogramming required.

benefit 4. Engineer-to-Engineer Collaboration

You work directly with experienced controls engineers — not sales reps. We speak your language, understand your process challenges, and design reliable automation systems that meet your goals from the first day of production.

Expert of 3 strong automation brands

Allen-Bradley PLCs and HMIs are known for their robustness, flexibility, and broad industry adoption — especially in North American manufacturing environments. We leverage Studio 5000, FactoryTalk View, and CompactLogix/ControlLogix controllers to design systems that provide reliable operation, advanced data handling, and intuitive visualization. By combining Rockwell’s technology with our programming standards, we help clients achieve seamless automation with simplified maintenance and long-term reliability.

ROCKWELL AUTOMATION

We specialize in Siemens automation platforms — including S7-1200, S7-1500 PLCs, and TIA Portal. Siemens offers powerful diagnostics, seamless integration between PLC, HMI, and drives, and unmatched reliability for industrial automation. Our expertise allows clients to benefit from optimized performance, faster commissioning, and easy scalability. Whether it’s motion control, process automation, or networked systems, we deliver fully integrated Siemens-based solutions that meet the highest engineering standards.

SIEMENS

Schneider Electric’s Modicon PLCs and EcoStruxure platform deliver flexible, energy-efficient control for diverse industries. Our integration approach unlocks real-time insights, remote monitoring, and optimized process performance. By programming and configuring Schneider controllers to your exact application, we ensure your operation benefits from both sustainability and scalability — key pillars of next-generation industrial automation.

SCHNEIDER ELECTRIC

Turn Complex Control Challenges Into Seamless Automation

From PLC design to commissioning, we deliver systems that work flawlessly – on time, every time.

Learn more about our services