Control Systems

Integrated Control Systems Design

Providing Control Systems Solutions

Control System Engineering is not simply an afterthought at Interstates. Our team of dedicated engineers and drafters deeply understand the workings of an integrated control system.

Our team includes engineers and drafters that have the knowledge and experience to implement the best integrated control system solution for your facility.

We have extensive experience working in hazardous locations with class/division ratings.

Our certified professional engineers and automation professionals evaluate and help determine the technology needed to make your project a success.

In fact, our Engineers have been recognized as outstanding leaders in system integration by Control Engineering magazine.

Saving Time & Money

Our engineering group reviews every piece of equipment information to prevent unexpected problems during the check-out process.

We review equipment specifications to ensure their ability to fit into our system, as well as integrating control system pieces so they work well together.

Our Engineers are hands-on, going onsite to perform checkout services along with the programmers and process experts.

We provide an entire support system for checkout, commissioning, and startup of your facility.


Interstates delivers value through our drawings packages. These drawings are linked electronically to keep the information current, prevent repetition of data, and avoid entry errors.

A drawing package could include the following documents:

  • Electrical Equipment Database
    This is a standard equipment list for the project. All equipment connected by the electrical contractor is made available in electronic format.

  • Process Instrumentation and Motor Control Loop Diagrams
    Interstates develops detailed motor control loop diagrams for all process-related motors and discrete and analog process related control devices showing control and starter wiring details for each motor and instrument.

    In addition, we can provide P&ID diagrams showing process flow, and piping and instrumentation.

  • Control System Architecture Drawings
    This is a complete communication one-line detailing all relevant information for the connections to the integrated process control systems controllers and HMI stations.

    If fieldbus technology has been implemented, wiring information is also documented within the system architecture drawings.

    We can also help by evaluating existing installations. We have experience with Modbus, profibus, Ethernet, devicenet, foundation fieldbus, controlnet and ozzibus.

  • Control Panel and Motor Starter Panel Layouts and Fabrication Drawings
    Panel drawings include back plate layouts, details, communication and/or power one-lines, and bill of materials.
  • Control Panel Wiring Diagrams
    Diagrams include card wiring details, rack layout, and detailed terminal layouts for control panels.