Alaskan pipeline flows with Modbus TCP in its industrial Ethernet

Enhanced automation architecture for the Trans Alaska Pipeline System provided capability to remotely operate the system, incorporating Modbus TCP in its industrial Ethernet network technology. See diagram.

02/05/2009


Portland, ME – In an industrial Ethernet networking application, Alyeska Pipeline Service Co. (APSC) operates the Trans Alaska Pipeline System (TAPS), 800 miles from Prudhoe Bay through rugged terrain to Valdez, the northernmost ice-free port in North America. 



APSC has transported more than 15 -billion barrels of oil via TAPS since pipeline startup in 1977. Automation software that connects to the Ethernet, whether running on commercial or industrial hardware, is already inherently “rugged” in nature with built- in retry logic and error correction as common functionality, Kepware says.

A recent project enhanced the TAPS automation architecture and provided the capability to remotely operate the system. APSC identified that installing new equipment would alter hydraulic and operating parameters, explained Tony Paine, CTO of Kepware . To predict and modify programming and operating configurations prior to installation, APSC engineers decided to create a rugged simulated I/O and valve system, mirroring live conditions.
Components, explains Paine, include Allen-Bradley ControlLogix PLCs by Rockwell Automation , ICS Triplex PLCs , I/O simulator by Telvent , and a valve simulator configured in a UCOS distributed control system (DCS).

See great pipeline photos at www.alyeska-pipeline.com

See more of this image and other great pipeline photos , at www.alyeska-pipeline.com.

To complete the system APSC engineers needed to link these virtual control components and I/O components, Paine says. The system integrator used Kepware’s OPC server KepServerEX with DDE Client driver plug-in and Modbus TCP/IP master driver plug-in. Kepware’s OPC server bridging product LinkMaster pumped data among connectivity components.
The configuration (see diagram) mimicked lab-based controllers and field I/O to “test and troubleshoot certain aspects of our system before the programming reaches the field,” says Jim Foster, the lead APSC engineer on the project. “The simulation system will also be used to test and qualify the control center operators in conjunction with other training tools,” Foster added.
www.kepware.com

– Edited by Mark T. Hoske , editor in chief
Control Engineering News Desk
Register here .





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Big Data and IIoT value; Monitoring Big Data; Robotics safety standards and programming; Learning about PID
Motor specification guidelines; Understanding multivariable control; Improving a safety instrumented system; 2017 Engineers' Choice Award Winners
Selecting the best controller from several viewpoints; System integrator advice for the IIoT; TSN and real-time Ethernet; Questions to ask when selecting a VFD; Action items for an aging PLC/DCS
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.
Motion control advances and solutions can help with machine control, automated control on assembly lines, integration of robotics and automation, and machine safety.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Big Data and bigger solutions; Tablet technologies; SCADA developments
SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
click me