Wireless Application: Western refining cuts wiring costs, improves performance

After a site survey, a wireless system is being integrated with existing power and network infrastructure. Up to 90% of the installed cost of conventional measurement technology can be for cable, conduit, and related construction. Wireless also optimizes plant productivity and reliability, and improves safety and security.


At Western Refining’s Gallup, N.M., refinery, process unit and tank operations have been upgraded using an advanced wireless mesh network. Based on Western Refining’s experiences, wireless is a desirable alternative in applications where traditional copper wiring can increase cost, maintenance, and unreliability. With wireless, plant infrastructure investments are reduced and the return on investment (ROI) can be significant. Projects that previously could not occur have become worthwhile.

Figure 1. Western Refining’s production facility near Gallup, N.M. Courtesy: Honeywell

As the only active refinery in the Four Corners region, Western’s Gallup facility primarily relies on a locally produced, high-quality crude feedstock known as “Four Corners Sweet.” This crude supply is supplemented with feedstock from outside the area.

Mountainous project

The operation is situated at nearly 7,000 ft elevation on rocky and mountainous terrain. Production processes and storage facilities cover a large geographical area, so instrumentation for monitoring the refinery’s remote offsite units can be very costly.

The Gallup refinery uses a legacy Honeywell TDC 3000 Distributed Control System (DCS). Management sought to extend monitoring capabilities to remote tank farm areas. The cost of traditional wiring and conduit for monitoring outside storage units was estimated at $15,000 to $22,000 per tank.

Up to 90% of the installed cost of conventional measurement technology can be for cable conduit and related construction. With wireless field devices, wired infrastructure is largely unnecessary. Using industrial wireless solutions reduces process monitoring costs, allows connection to points that are physically or economically difficult to access, and permits easy expansion for additional measurement or actuation points for the cost of a transmitter. Security is robust, power management and multispeed monitoring are predictable, and Wi-Fi coverage is provided at no additional cost.

Wireless benefits

Industrial wireless technologies:

  • Revolutionize process measurement
  • Offer new opportunities to optimize plant performance, reliability, and safety while reducing installation costs
  • Provide, with addition of wireless transmitters, an affordable and accurate alternative for applications involving supervisory control, monitoring, indication, and alarming
  • Can operate in the most demanding plant environments with recent advancements in radio technology and communications protocols
  • Bring self-healing wireless mesh networks to numerous industrial applications, beyond wireless-enabled versions of conventional field devices for process automation.

In 2008, the Gallup refinery began implementing a wireless solution that incorporates a multiprotocol, multistandard wireless network communicating simultaneously with Wi-Fi and industrial I/O devices. It also uses optional redundant synchronized gateways, which link the wireless network into the process control network (PCN).

Figure 2. Honeywell’s wireless mesh network architecture uses externally powered multinodes scattered throughout the coverage area. Courtesy: Honeywell

The wireless “backbone mesh” architecture incorporates field- and plant-level applications on one, unified network. The network uses externally powered multinodes scattered throughout the coverage area. The devices support industrial wireless standards for process control applications and provide sensor data transmission redundancy at all levels.

Multinodes communicate with each other and provide a backhaul for bringing information to a gateway, where it passes into the larger wired PCN. The meshing action takes place between multinodes, not at the instruments. For safety, at least two multinodes receive data from each instrument, creating a redundant path.

Figure 3. A wireless site survey addressed the coverage area desired at the Gallup refinery, existing power and network infrastructure, and interfering and operating frequencies currently in use or ambient in the environment. Courtesy: Honeywell

Before the wireless installation at the Gallup refinery, an on-site survey determined the project scope and challenges. The survey addressed the coverage area desired at the plant, existing power and network infrastructure, and the implementation goals (immediate and long-term), and assessed interfering and operating frequencies currently in use or ambient in the environment. The survey also identified any potential security exposures.

Gateway, 38 instruments

The multifunctional wireless mesh network implemented at the Gallup refinery supports a variety of applications within one network. Wireless technology was first employed for tank gauging and is now being introduced for high-level analog and digital indications in the process units. Wireless monitoring data is integrated into the refinery’s existing DCS and advanced applications.

Wireless transmitters have replaced outdated pneumatic devices used for valve positioning and process variable indication. An optimized wireless infrastructure with narrow band radio frequency hopping ensures maximum performance. Wireless devices transmit measurements to a base radio connected to the plant control system.

Western Refining’s current installation includes one wireless system gateway and four redundant multinodes connecting 38 wireless instruments. The wireless field devices send information to a series of multinodes, creating a mesh infrastructure that maximizes uptime and data security.

Figure 4. An optimized wireless infrastructure with narrow band radio frequency hopping ensures maximum performance. Courtesy: Honeywell

At the Gallup refinery, wireless transmitters have broken down barriers to monitoring variables in areas where traditional hardwired transmitters were too costly, difficult, or time-consuming to implement. Instruments are designed for applications that are without access to power, are remote or difficult to access, require frequent changes in instrumentation schemes, or where manual readings are typically taken.

With wireless transmitters, engineers at the refinery can easily increase the number, frequency, and type of measurements. In addition, they can improve accuracy and consistency of measurement by replacing manual readings with automated online data collection. Online communication with the control system also helps ensure precise time tracking of information for use in troubleshooting process problems.

Project results

For Western Refining, wireless has proven to be a desirable alternative to traditional copper wiring, which increases cost,  maintenance, and unreliability. ISA100 DSSS wireless transmitters can be used to monitor a variety of processes and assets in hazardous and remote areas, and this data can be used in a variety of systems.

Wireless frequency-hopping spread spectrum technology also adds security and ensures that noise interference at any one frequency does not block communications or cause security concerns. One scalable wireless network conserves spectrum and power.

The wireless installation was fast, inexpensive, and easy. Operators, engineers, and technicians have one system to learn, operate, and maintain. Wireless allows plant personnel to react quickly to changing conditions and gather information they need to optimize processes. Plant infrastructure investments decrease immediately, and significant ROI can be realized. I/O costs have been significantly lowered, and projects that previously could not occur now become immediately worthwhile.

Figure 5. By 2011, Western Refining plans to install more than 100 Honeywell wireless transmitters throughout the Gallup refinery. Courtesy: HoneywellBy 2011, Western Refining plans to install more than 100 wireless transmitters throughout the Gallup refinery for various process monitoring tasks, as well as noncritical control applications. Wireless instrumentation will be installed on at least six more process units. The first control-related wireless applications will be in offsite blending.

At Western Refining, wireless applications have helped to optimize plant productivity and reliability, improve safety and security, and ensure regulatory compliance. Much more than just avoiding the cost of wire, the key value of wireless lies in the ability to integrate valuable data into existing control systems and advanced applications, while also sharing that data with other networked applications.

Reginald Joseph is senior process controls engineer, Western Refining.



Wireless system

Western Refining used Honeywell, Automation and Control Solutions, Process Solutions products, including the OneWireless System and XYR wireless transmitters.

About Western Refining

Western Refining is an independent oil refiner and marketer headquartered in El Paso, Texas. The company has a combined crude oil processing capacity of approximately 221,000 barrels per day (BPD). Its refineries and affiliated companies serve a broad customer base in Arizona, southern California, Colorado, Nevada, New Mexico, western Texas, Utah, and the U.S. Central East Coast region.

Western Refining’s production operations, which are concentrated in the Southwestern and Mid-Atlantic regions of the U.S., produce high-value light products such as gasoline, diesel, and jet fuel. The company markets under its own brands of Giant, Mustang, and Sundial.

The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
Doubling down on digital manufacturing; Data driving predictive maintenance; Electric motors and generators; Rewarding operational improvement
2017 Lubrication Guide; Software tools; Microgrids and energy strategies; Use robots effectively
Prescriptive maintenance; Hannover Messe 2017 recap; Reduce welding errors
The cloud, mobility, and remote operations; SCADA and contextual mobility; Custom UPS empowering a secure pipeline
Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Research team developing Tesla coil designs; Implementing wireless process sensing
Commissioning electrical systems; Designing emergency and standby generator systems; Paralleling switchgear generator systems
Natural gas engines; New applications for fuel cells; Large engines become more efficient; Extending boiler life

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
The maintenance journey has been a long, slow trek for most manufacturers and has gone from preventive maintenance to predictive maintenance.
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.
Maintenance Manager; California Oils Corp.
Associate, Electrical Engineering; Wood Harbinger
Control Systems Engineer; Robert Bosch Corp.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me