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Industry News

Advanced Automation

Bedrock Control System Provides Cyber Secure SCADA RTU Platform for Clarksville Light and Water

September 22, 2016

San Jose, Cal.  Sept. 21, 2016 — Bedrock Automation, today announced that Clarksville Light & Water (CLW), of Clarksville, Arkansas, is implementing the Bedrock® control system for cyber secure SCADA RTU monitoring and control of its electric, water and wastewater utilities.  The project is part of the city’s plan to save up to $2M over the next five years through improved control, monitoring, and security of its electric grid and water treatment facilities.


CLW is a municipally-owned utility that has been serving the Clarksville, Arkansas community since 1913. It plays a major role attracting new investment from the business community, driving job creation.  Toward that end, CLW recently enhanced its municipal infrastructure with 16.7 miles of 288 strand fiber cable in redundant loops throughout the city. CLW General Manager, John Lester, recognized the opportunity to leverage that investment into long overdue monitoring and control of the city’s four electrical substations and water treatment and distribution operations, and eventually its wastewater utility systems.


“A fiber network communication system was the most reliable, cost effective, and secure network we could put in place. It also offered the potential to layer in other revenue generation services, both internally and externally.  The fiber optic network gave us a way to tap that new functionality for our remote operations and when we learned that choosing Bedrock as our RTU system would mean that military-grade cyber security was already built in, we saw a very cost effective way to reduce cyber risk while also addressing looming NERC CIP compliance requirements,” said Lester.


With the new system in place, CLW now controls functionality via remote access for RTU sites as well as 24/7 automated and on-demand remote monitoring of key assets.  That kind of connectivity enables the utility to optimize asset maintenance actions through custom email and text alerts based on real-time data. The system is already generating results according to Lester.


“This project has reduced overtime: a direct savings. Problems can be identified, sometimes even solved without having to physically be at the plant or in the field. That translates into cost savings, improved reliability, and higher customer satisfaction,” said Lester.


Bedrock certified solution provider Brown Engineers, of Little Rock, Arkansas, completed the installation in the second quarter of 2016 and the system is now in full-operation. Brown Engineers paired the Bedrock control platform with Inductive Automation’s  IgnitionTM software platform to deliver an integrated, secure open systems solution that enables Clarksville Light & Water (CLW) to proactively manage critical infrastructure assets both onsite and remotely.


“We wanted each substation RTU to have enough horsepower to aggregate all power meter data and protective relay data for sequence of event recording.  We also considered the future development needs for power management techniques that support demand management and load shedding controls.  The Bedrock controllers provide all those features in an easy-to-manage integrated development environment (IDE) as well as built-in cybersecurity protections embedded at the hardware level,” said Dee Brown, PE and principal at Brown Engineering.


Why BedrockTM?

Each Bedrock controller uses an electromagnetic backplane instead of a traditional pin-based backplane, which eliminates pin corrosion and breakage, while improving long term reliability. The electromagnetic backplane also contributes to the systems high security by preventing the possibility of using counterfeit I/O modules. A galvanic isolation barrier between field wiring and the controller provides a high degree of electrical protection and reliability in electrically noisy environments – ensuring accurate measurement in the presence of high voltages like those found in power substations.


Dee Brown explains it this way, “When you consider that this platform scales easily from a single RTU or PLC to supporting a complex control network; has more memory and horsepower than anything out there; and that all applications can be engineered from the same 12 or so part numbers – well, there simply isn’t a conventional platform that can come close in simplicity or scalability — not to mention security.”


To learn more about Bedrock cyber security, interested parties can download a recently released video testimonial describing applications for Arkansas utilities.


About Clarksville Light & Water (CLW)

CLW is a forward thinking, municipally owned utility that has been providing services to the Clarksville, Arkansas community at not for profit rates since 1913. With annual revenues of approximately $25 million it provides retail electric, water and wastewater services to community as well as water to 8 other cities and water districts in the region on a wholesale basis. For more information visit or call 479 754-3148.


About Brown Engineers

Brown Engineers, based in Little Rock, Arkansas, is a consulting engineering company that provides mechanical, electrical and automation systems. They have extensive experience in SCADA, control systems and system integration for water, sewer, and electric utilities of all sizes. Brown is a leading integrator of Bedrock Automation and Inductive Automation products. For more information go to or call 501-448-0100.

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