STN-9050/9150 Substation RTU

QEI’s RTU platforms are designed to act as communication nodes between the SCADA Master Station, the local RTU I/O panels, and the ever growing suite of Intelligent Electronic Devices (IEDs) now used in electric utilities. Available in freestanding, rack mounted, or wall/pole mounted enclosures, these models can be configured to match your exact requirements. 

The STN-9150 and STN-9050 are designed to respond to queries from one or more SCADA master stations using one or more serial or TCP/IP based communications channels. DNP3, Modbus, L&G 8979 and a large library of legacy SCADA protocols are available for your use. 

ConfigWiz provides a drag & drop, Windows® user interface which prompts the technician through the steps required to define an RTU:

  • configuration of all communication ports
  • selection of IED communication clients
  • selection of Master Station communication servers
  • mapping of the data points between the RTU’s IED client database and Master Station server database

When the configuration process is complete, the resultant RTU configuration file is PC archived for long term storage, and then compiled and downloaded into the STN-9180 for execution.

The STN-9150 and STN 9050 can monitor not only hardwired status, analog and control points but can concentrate data from the intelligent electronic devices you have present on your network using all common IED protocols such as DNP3, Modbus, SEL Fast Meter/ASCII and others.

The STN-9150 is housed in a large freestanding or wall mounted enclosure with front access and uses a modular set of I/O panels for hardwired status, analog, accumulator and control inputs. These hardwired I/O panels are connected by chained ribbon-cable connections. The STN-9050 is housed in a smaller, wall/pole mounted cabinet and uses a single, fixed point count multifunction I/O panel for it’s hardwired points.

The base RTU microprocessor module supports both RS-232 and RS-485 connections for both master station and IED communication and serial port. An add-on daughterboard will supply TCP/IP connectivity through two ethernet ports.

The data points for I/O boards and IEDs are mapped for communications using our Windows® based ConfigWiz® software. Any value retrieved from an IED or I/O Panel may be mapped to one or more communications ports regardless of protocol, communications medium, baud rate or polling method. The STN-9150/9050 RTUs are very useful for matching legacy communication channels and protocols to your current enterprise network.

  • Server Protocols (to Master station): DNP3, L&G 8979 (Serial and over IP), Modbus (RTU and TCP), QUICS (Serial and over IP), Tejas/Valmet Series III/V, BETAC, CDC I & II, Conitel, and others. 
  • Client Protocols (to IEDs): DNP3 (serial and over IP), Modbus (RTU and TCP), SEL Fast Meter/ASCII with device discovery. 
  • Local or remote web browser interface, and others. 
  • Programmable Logic and Communications Control (PLCC) capability for user defined closed loop control algorithms. 
  • Hardwired I/O limits for STN-9150 : 256 Status, 128 analog, 128 Control. 
  • Hardwired I/O limits for STN-9050: 16 status, 8 analog, 4 control points. 
  • Configuration is accomplished through secure ConfigWiz® management program via local maintenance port or local/remote IP connection. A full complement of data filtering, port switching, IED I/O control, and other management/diagnostic functions are present. 
  • Power input: 120VAC, 24Vdc, 48Vdc or 125Vdc. 
  • 1 msec Sequence-of-Events (SOE) status and optional IRIG-B clock input. 

What Our Customers Have to Say

“QEI is always making improvements to their product, and it is almost always a result of customer feedback. QEI listens, acts, and highlights the improvements every year at the user conferences. Great job QEI!”

North American Utility

“QEl did a fabulous job installing and configuring four SCADA servers for our Quad-Redundant QEI SCADA system.”

Florida Water Utility

“For over the last 10 years, we have had a QEI SCADA system that monitors our two substations and line reclosers. We have been very happy with the quality of their product and more importantly, the service that they provide to maintain the system. Everyone at QEl really seems to know their product inside and out.”

Village of Lake Placid

“We have utilized QEl for our SCADA needs for over 20 years. They provide an excellent system, both software and hardware. QEl’s staff has alwavs been there for our needs and is always helpful and friendly We highly recommend QEl’s system and their maintenance contracts to keep your system current.”

Emerald Coast Utilities Authority (ECUA)

“The new website is very user-friendly. I really like the Customer Portal, which provides quick access to manuals, presentations, and software updates. Q Tips and more.”

City of Wilson, NC

“We have always been able to rely on QEl for their technical knowledge and support. Thank you QEI.”

Mid-Atlantic Municipal Utility

“QEl is a company that not only makes a great product but backs it up with outstanding service.”

Village of Lake Placid

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Schedule a Consultation Call

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STEP 2:

We’ll Collaborate to Develop a Solution

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STEP 3:

Experience the Advantages of QEI

We’ll coordinate and execute the plans for your upgraded system.