Control system integration
and technical services

SVC-01

System Integration

SCA integrates PLC, HMI and SCADA systems across single-vendor skids and mixed-manufacturer facilities, including legacy platforms still carrying production. Work covers new systems, in-kind replacements and migrations off obsolete hardware where the process cannot take an extended outage.

Integration scope is defined in writing before configuration starts, so the interface between your controls, your OEM skids and your enterprise systems is a documented boundary rather than a field discovery.

Included

• Rockwell ControlLogix and CompactLogix system integration
• FactoryTalk View SE and ME application development
• Inductive Automation Ignition SCADA, including cloud-hosted architectures
• OEM skid interface definition and gateway configuration
• Legacy platform assessment, conversion and cutover planning
• Historian, reporting and data collection integration

SVC-02

PLC & HMI Programming

Code written against a governed standards library rather than improvised per project. Reusable Add-On Instructions and User-Defined Types give every motor, valve, analog input and interlock the same structure, alarm behavior and HMI faceplate across the plant.

The result is a program your own staff can maintain, and a program the next integrator can extend without a rewrite.

Included

• Ladder, function block and structured text per IEC 61131-3
• AOI and UDT library development and governance
• ISA-101 high-performance HMI screen design and hierarchy
• ISA-18.2 alarm rationalization, prioritization and shelving design
• ISA-88 phase logic and recipe execution for batch processes
• L5X export, patch delivery and version control of program artifacts

SVC-03

Control System Design

The engineering document set that defines the system before anyone touches code or copper. This is where scope disputes get settled — on paper, at a fraction of the cost of settling them at commissioning.

Each document has a defined audience and a defined question it answers, under a controlled numbering and revision scheme issued at award.

Included

• Basis of design and control system architecture
• User and functional requirements specification (UFRS)
• Control narratives covering startup, normal, shutdown and ESD sequences
• Cause and effect matrices reconciled to the narrative
• Detailed design specification (logic, screens, alarms, records)
• Network and communications architecture drawings

SVC-04

I&C Detail Design

Instrument and I/O deliverables produced from the issued-for-construction P&IDs and reconciled against the PLC program, so the index, the I/O list and the code agree with one another before the first termination is landed.

Where an existing facility has drifted from its as-builts, SCA runs field verification first and issues the corrected baseline as part of the package.

Included

• Instrument index and tag register
• Instrument datasheets for procurement
• I/O lists with rack, slot and channel assignment
• Loop diagrams, loop check sheets and termination schedules
• Control panel layout, bill of materials and enclosure sizing
• As-built field verification and index reconciliation

SVC-05

Testing & Commissioning

Written, executed and signed test procedures. Every step states the expected result and carries a place for the witness signature, so the test record is an acceptance document rather than a memory of a good week.

SCA writes the procedures, executes them, and manages the punch list to closure.

Included

• Factory acceptance test (FAT) procedures, execution and reports
• Site acceptance test (SAT), loop checks and installation verification
• Commissioning plans covering sequence, roles, test packages and sign-offs
• Pre-startup safety review (PSSR) checklists
• Loop tuning and control performance verification
• Operator training and turnover package assembly

SVC-06

Safety & OT Security

Safety instrumented systems and control network exposure scoped against the standards your insurers, auditors and process safety group already reference — not against a vendor's product sheet.

Deliverables state what is in scope, what is out, and what residual risk the owner is accepting.

Included

• SIS architecture and separation review per IEC 61511 / ISA-84
• Safety instrumented function review and ESD logic development
• Bypass, override and proof-test interval documentation
• OT cybersecurity scoping and zone/conduit definition per IEC 62443
• Control network segmentation and remote access review
• Backup, recovery and change-control procedures for control assets

SVC-07

Assessment & Front-End Support

Independent evaluation while the decision is still open. Platform selection, estimate review and enclosure sizing all cost far less to get right in front-end than to correct after award.

SCA has no hardware line to protect, so the recommendation reflects the application rather than a distribution agreement.

Included

• PLC, HMI and SCADA platform evaluation and selection studies
• Control system obsolescence and migration path assessment
• Panel and enclosure thermal load evaluation
• Bid package, estimate and vendor proposal review
• Multi-site as-built verification programs
• Controls scope development for capital project authorization