QIA-SIX Engineering, LLC
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Engineering Services

Controls & Automation Engineering

Control system design, programming, integration, modernization, testing, commissioning, and troubleshooting for industrial operations.

Controls Engineering

From system architecture to startup.

QIA-SIX Engineering supports control-system projects throughout the complete lifecycle. Services can be applied to new installations, expansions, migrations, brownfield modifications, optimization initiatives, or focused troubleshooting efforts.

Our objective is to develop systems that are understandable to operations and maintenance personnel, appropriately documented, and engineered for long-term reliability.

Capabilities

Controls and automation services.

Control System Design

  • PLC, PAC, DCS, and SIS architecture
  • I/O architecture and cabinet layouts
  • System network and communications architecture
  • Control panel design coordination
  • Power, grounding, and interface requirements

Programming & Configuration

  • PLC/PAC controller programming
  • DCS configuration support
  • Sequence, interlock, permissive, and alarm logic
  • PID control and loop implementation
  • Reusable standards and code libraries

HMI & SCADA

  • Operator interface development
  • SCADA system integration
  • Alarm philosophy implementation
  • Historian and reporting interfaces
  • High-performance graphics and navigation standards

Industrial Communications

  • EtherNet/IP, Modbus TCP/RTU, OPC UA and related protocols
  • Control network segmentation and architecture
  • Device and package-unit integration
  • Gateway and protocol conversion
  • Communications troubleshooting

Modernization & Migration

  • Legacy PLC and HMI migration
  • DCS/PLC replacement planning
  • I/O conversion strategy
  • Cutover sequencing and outage planning
  • Risk reduction for brownfield transitions

Testing & Commissioning

  • FAT and SAT planning and execution
  • Logic and sequence testing
  • I/O and loop checkout coordination
  • Startup and commissioning support
  • Post-startup troubleshooting and optimization

Typical Deliverables

Clear documentation that supports the system.

01
Control Narratives Functional descriptions, operating sequences, permissives, and interlocks.
02
Architecture Drawings Controller, I/O, server, network, and interface architecture.
03
Logic & HMI Configured control logic, graphics, alarms, trends, and operator tools.
04
Test Records FAT/SAT procedures, punch lists, issue tracking, and turnover documentation.

Planning a control-system project?

Discuss a migration, expansion, troubleshooting issue, or new automation project with QIA-SIX.

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