UIS - Utilities Instrumentation Service
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SCADA Services

SCADA Systems Integrator – One stop for SCADA system engineering, installation and start-up.

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UIS SCADA is a one stop shop for SCADA Services and SCADA Troubleshooting.  We supply all SCADA systems components such as; instruments, all forms of telemetry, Remote Terminal Units (RTU), control panels with Programmable Logic Controllers (PLC), Human Machine Interfaces (HMI) on web hosted or on-site servers.

Our more than 25 years of SCADA experience in a range of solutions gives us the unique ability to propose the best solution for your needs.  We leverage our experience and dropping cost of technology to help you balance cost, security, and ease-of-use so that you can see in real time the performance of your processes.  The process can be local or remote, and can be seen via video or graphically using HMI software.

What is SCADA?

SCADA is the acronym for Supervisory Control and Data Acquisition. It generally refers to a system that uses a centralized computer to monitor and control data acquired from various locations. SCADA is used in Water/Wastewater Management, Power Transmission and Distribution, Industrial Process Management, Communication Systems, and other systems and industries.

SCADA Diagram

Most SCADA system functions are performed automatically by the Remote Terminal Units (RTUs). The RTU usually is a Programmable Logic Controller (PLC) that can locally monitor and control different conditions at the remote site. However, human intervention can be allowed and changes can be automatically logged and/or displayed. For example, the RTU may control the operation of a pump to fill a water tank. The set points to start and stop the pump are monitored by the SCADA system to function optimally. However, these set points can be changed or overridden at any time by human intervention.

The SCADA system monitors the entire system in real time. Data acquisition is handled locally at each site by sensors and electromechanical devices that are hard-wired to the RTU. Not only is data processed by the local RTU, but data is also compiled and formatted so that a control room operator using an HMI can monitor or adjust settings. Data is usually recorded and logged for analysis.

The SCADA database system is comprised of elements called tags or points. Each point represents a single value monitored or controlled by the system. A hard point is an actual input or output, while a soft point is the result of an application or software calculation. Points are usually stored as value-timestamp pairs (a value recorded at a particular time) to create a history and to allow trending and other analytical reporting. For example, pump operation and efficiency can be determined with reporting of the number of pump starts and run-time.

The benefits of a SCADA system are numerous. It can be used in small applications as well as large.

Here are some of the advantages:

  • Real-time information on field conditions
  • Faster indication of field problems and faster response to correct
  • Higher reliability
  • Lower maintenance costs
  • Optimal operation of equipment
  • Less field travel and more efficient use of employees

UIS SCADA’s services are focused on five areas of expertise:

  • Instrumentation – Sales, service and calibrations.
  • Telemetry – Sales, service, propagation studies and programming for radio, licensed or unlicensed, Cell, DSL, Cable, Satellite.
  • SCADA Servers – Sales, service, programming for Web Hosted, On-Site or Hybrid Servers.
  • Controls – Sales, service & programming for UL Listed, VFD, PLC and RTU Custom Panels.
  • Management Reports – Energy, Asset, Process and other custom management reports.