Main Automation Contractor (MAC)

The ability to deliver the full scope of project execution in industrial automation projects is more important than ever. As global energy demands increase, plants have a mission to achieve high quality project execution, plant operations, and maintenance.

However, companies are increasingly constrained by personnel issues, budgets, and shrinking timetables. Aside from grassroots construction activity in emerging markets, companies are also faced with the task of executing multiple projects simultaneously in disparate geographic regions.

Increasingly, companies depend on Yokogawa to take on the role of main automation contractor, owning responsibility over the entire automation related aspects of the project.

Yokogawa provides highly qualified and well resourced control systems specialists to engineer, supply/procure and manage instrumentation, control systems, safety instrumented systems, and associated interfaces for all project components and facilities.

Yokogawa's main automation contractor (MAC) service delivers the full scope of project execution capabilities. Yokogawa assumes responsibility over the entire automation related aspects of the project, helping you meet budget, time, manpower, delivery, and risk management needs.

Project execution requirements are more important than ever—not only for automation end users, but also for engineering, procurement, and construction (EPC) contractors. Although projects need to be finished as quickly as possible, many EPC's are paring down their automation departments, and no longer have the time or resources to deal with multiple automation suppliers on a project. Therefore, an automation supplier with the right capabilities and experience can provide a single point of responsibility for project management, coordinating the work among multiple suppliers and subcontractors.

MAC AutomationYokogawa as a MAC assumes responsibility over entire automation related phases of the project. The Yokogawa MAC team constructs the most suitable project organization, works with directly with end users, EPC, and 3rd parties. With the MAC approach of dealing with Yokogawa directly, it isn't necessary for customers to make an effort to manage various automation suppliers.

Instead, customers can derive cost savings, risk mitigation, and shorten delivery times, etc. With our global engineering network and resources, Yokogawa can execute projects safely, efficienctly, and then provide optimal operations support over the entire plant lifecycle.

Compared to a traditional approach, Yokogawa MAC enables drastic costs saving to the overall project. Many of the world's leading end users, particularly in the process industries, are applying the MAC approach to their entire capital project. The MAC approach can result in project cost saving up to thirty percent against a traditional approach. Costs are reduced in nearly all phases of the project, since automation suppliers are encouraged to consolidate industry and application expertise to execute projects in a consistent manner. This means developing practices and procedures that are standard and can be applied across multiple projects to reduce costs.


MAC AutomationCompanies can recognize significant benefits by partnering with Yokogawa as their main automation contractor:

  • Total project management
  • Single point of responsibility and single window
  • Commitment to the customer on corporate level
  • Entire automation design and engineering
  • Automation standardization for multi-projects
  • Design of automation standards
  • Shortened delivery times
  • Minimized unexpected changes due to early MAC involvement
  • Minimum customer involvement during project execution
  • Global engineering locations and resources
  • Global procurement network
  • Cost savings and risk mitigation by dealing with Yokogawa directly


Main Automation Contractor Scope: Services and Deliverables

  • Project Management
  • Cost & Schedule Control
  • FEED & Detail Engineering
  • Procurement Support
  • Vendor Package Interfaces
  • System Integration & Programming
  • Construction Support
  • Commissioning Support
  • Training
  • Operations Support


  • Process Control & SCADA Systems
  • Process & Emergency Shutdown Systems
  • Fire & Gas Detection
  • Information Systems
  • Communication Systems
  • Selected Instrumentation
  • Transmitters
  • Control Valves
  • Level Instruments
  • Selected Packages
  • Metering Skids
  • Instrument Buildings
  • Training Simulator
  • Historian/MES
  • Capital Spare Parts 

Yokogawa Main Automation Contractor Scope

MAC Automation


  • 16,000 FOUNDATION Fieldbus devices
  • Main Automation Contractor (MAC)
  • DCS anywhere concept integration with site SAP system
  • Long term maintenance contract
  • Sustainable development

In 2011, Pandora Methanol acquired petrochemical production facilities in Beaumont, Texas that had been mothballed since 2004. These two plants, a 13-year old ammonia plant and a 50-year old methanol plant, had received only marginal maintenance during this extended shutdown and had suffered direct hits from two major hurricanes.

  • As the main automation contractor (MAC) for this plant construction project, Yokogawa Brazil engineered, installed, and commissioned an integrated control and instrumentation solution
  • Yokogawa Brazil completed the commissioning of these systems ahead of schedule and the production of green polymer was started just one week later

The Mars B Project added the following greenfield infrastructure to boost production at the Mars field and nearby exploration discoveries: the Olympus tension leg platform (TLP), which has 24 well slots and a self-contained drilling rig; the West Boreas/South Deimos subsea system; and an oil and gas export system, which includes the WD-143C shallow-water platform. The Olympus tension leg platform (TLP) started producing on February 4, 2014. The TLP is the second at the Mars field and the sixth of its type for Shell in the Gulf of Mexico.

  • Yokogawa receives award for hot cutover of BP Sharjah plant DCS.
  • Yokogawa was selected by BP as main automation contractor (MAC) for a project to replace the Sharjah plant's existing legacy DCS with Yokogawa CENTUM VP.

Continuous Control Solutions ("CCS") has been providing advanced turbo machinery solutions to global markets since 2000 with a steadfast focus on developing advanced control algorithms implemented in the customer's choice of PLC or DCS hardware platform. CCS Turbo Machinery Control Solutions have been implemented on a variety of hardware platforms including Allen Bradley ControlLogix, Honeywell C300, Siemens S7, ABB AC800M and Emerson DeltaV.


Continuous Control Solutions ("CCS") specializes in industrial turbo-machinery control challenges for various types of industries. CCS' turbo-machinery technology and patented control algorithms are hardware platform independent and have been successfully implemented on different hardware platforms since 2004.


Agile Project Execution is YOKOGAWA's methodology to execute all projects in a cost efficient way by removing waste.

With the release of the new CENTUM VP R6, a solution platform that exceeds the capabilities of conventional production control systems, customers can take full advantage of the new features like Network-IO providing decoupling of hardware and software and the new Automation Design Suite.


Over the past decade, companies have been using unconventional drilling technology to extract gas and liquid from the readily available shale formations in North America. As the industry gains experience, the production rates continue to rise based on better use of technology to locate resources and to decrease the time from exploration to production.


yi-MAC stands for YOKOGAWA Innovative Main Automation Contractor:

  • Full control of scope and schedule across packages
  • Realization of customer expectation
  • Single point of responsibility
  • Providing fully integrated solutions

Network-IO can help reduce projects by decreasing the amount of time needed to implement the physical part of the process control system. A system with configurable I/O allows flexible "binding," in which the soft- ware configuration of the system can be loaded into the physical system at a late stage in the project.


The ability to deliver a full scope of project execution capabilities is becoming more important than ever for automation suppliers that wish to compete on a global scale. Process automation suppliers have always had some degree of project execution capabilities, but only recently have suppliers and end users begun to realize the true economic impact that precise and comprehensive execution capabilities can have on the success of an automation project and on plant lifecycle costs.


When a project is executed following the main automation contractor (MAC) method, front-end engineering and design (FEED) is conducted before actual delivery phases such as design, implementation, inspection, and shipment, to identify risks in advance and mitigate risks in delivery phases through the standardization of the basic functions and components.


Instrumentation devices and equipment serve for plants as the eyes, ears, nose, tongue, and skin, which are responsible for the five senses, and act as the central nervous system and brain do for human beings. The reliability and availability of such devices and equipment are the most important requirements of customers.



"Shaping the Future with Automation" is to address the European Chemical brownfield market.


Chet Mroz of Yokogawa Discusses Critical Automation in the Energy Market @ the 2014 ARC Industry Forum in Orlando, FL. Interview conducted by Mark Sen Gupta of ARC Advisory Group.


0:00 "Yokogawa Corporation of America Strategy in the US, Canada & Mexico" by Chet Mroz, President & CEO, Yokogawa Corporation of America

4:13 "Creating Value and Innovation in Industrial Automation (IA) through Strategic Alliances" by Chiaki Itoh, VP, IA Marketing HQ, Yokogawa Electric Corporation

8:47 "Global Strategic Alliance with DELL" by Nobuaki Konishi, VP, Systems Business Div., IA Platform Business HQ, Yokogawa Electric Corporation

20:24 "The Dell OEM Advantage" by Joyce Mullen, VP and General Manager, OEM Solutions, Dell Inc.


Discovered more than a decade ago, the Jack and St. Malo fields are expected to deliver more than 500 million barrels of oil. The Jack St. Malo floating production unit is the fourth deepwater facility Chevron operates and is the largest Chevron has in the Gulf of Mexico. Hear what it takes to deploy the technology and deliver first oil from this very challenging megaproject


Looking for more information on our people, technology and solutions?

Contact Us