Instrumentation & Control (I&C) Engineering

Neilsoft provides Instrumentation & Control (I&C) Engineering services to support detailed engineering through As-built, technical documentation, vendor coordination, for developing accurate, coordinated, and constructible I&C designs that facilitate efficient project execution and plant operations. 

With integrated engineering capabilities and experience in plant and industrial engineering projects, we support clients in design basis development and instrument selection to control system specifications, cable routing, control room layouts, loop diagrams, and as-built documentation. We deliver coordinated engineering deliverables aligned with project requirements and applicable standards.

Our Instrumentation & Control Engineering Capabilities

Conceptual Design & Extended Basic Engineering

  • Instrumentation & Control Design Basis 
  • HMI & Tagging Philosophy 
  • Networking System Architecture 

Sizing, Calculation & Field Instrument Specifications

  • Sizing Calculations for Flow Elements and Control Valves 
  • Instrument Datasheet Preparation and Technical Documentation 
  • Instrument Index and I/O List Development 

Control Automation & System Engineering (DCS / PLC / SCADA)

  • Control System Specifications for DCS, PLC, SCADA, and Related Systems 
  • Hardware & Software Systems Configuration 
  • Control Room Layout Development 
  • Control Panel – General Arrangement (GA) & Schematic Drawings 

Detailed Design, 3D Integration & Layout Engineering

  • 3D Modelling of Instrumentation Systems and Equipment 
  • Instrument Location Layouts 
  • Cable Tray Routing and Junction Box (JB) Layouts 
  • Instrument Hook-Ups and Instrument Air Tubing Layouts

Detail Schematics, Wiring & Logic Engineering

  • Loop Diagrams 
  • Logic Diagrams 
  • Instrument Hook-up Diagrams 
  • Wiring and Interconnection Diagrams

Procurement Support

  • Technical Bid Evaluation (TBE) and Vendor Drawing Review (VDR) 
  • Tender Documentation 
  • Instrumentation Material Take-Off (MTO) / Bill of Quantities (BOQs)

As-Built Documentation and Lifecycle Record Updates

  • Incorporating field changes and redline markups into instrumentation drawings 
  • Updating instrument loop diagrams, wiring diagrams, and control schematics 
  • Maintaining accurate instrumentation records and revision documentation 

We specialize in developing custom Design Automation and Knowledge-Based Engineering (KBE) applications that are suited to the specific demands of diverse engineering fields. By seamlessly combining our niche domain expertise with CAD platforms and software development capabilities, we help businesses with enhancing engineering efficiency, streamlining processes and reducing manual effort. Our solutions are designed to deliver precision and scalability, enabling organizations with a competitive advantage in today's fast-evolving engineering landscape.

Our offerings

  • CAD/BIM Automation​
  • CAD Interoperability​
  • Engineering & Sales Configurators​
  • Custom Application Development​