Previous Page: SCADA: The Flexible RTU (Remote Telemetry Unit) That Handles All Your Transports
PDFDownload White Paper

What to Look for in a SCADA RTU (Remote Telemetry Unit)

Your SCADA RTUs need to communicate with all your on-site equipment and survive under the harsh conditions of an industrial environment. Here's a checklist of things you should expect from a quality RTU:

  • Sufficient capacity to support the equipment at your site ... but not more capacity than you actually will use. At every site, you want an RTU (Remote Telemetry Unit) that can support your expected growth over a reasonable period of time, but it's simply wasteful to spend your budget on excess capacity that you won't use.
  • Rugged construction and ability to withstand extremes of temperature and humidity. You know how punishing on equipment your sites can be. Keep in mind that your SCADA system needs to be the most reliable element in your facility.

  • Secure, redundant power supply. You need your SCADA system up and working 24/7, no excuses. Your RTU (Remote Telemetry Unit) should support battery power and, ideally, two power inputs.

  • Redundant communication ports. Network connectivity is as important to SCADA operations as a power supply. A secondary serial port or internal modem will keep your RTU (Remote Telemetry Unit) online even if the LAN fails. Plus, RTUs with multiple communication ports easily support a LAN migration strategy.

  • Nonvolatile memory (NVRAM) for storing software and/or firmware. NVRAM retains data even when power is lost. New firmware can be easily downloaded to NVRAM storage, often over LAN - so you can keep your RTUs' capabilities up to date without excessive site visits.

  • Intelligent control. As I noted above, sophisticated SCADA remotes can control local systems by themselves according to programmed responses to sensor inputs. This isn't necessary for every application, but it does come in handy for some users.

  • Real-time clock for accurate date/time stamping of reports.

  • Watchdog timer to ensure that the RTU (Remote Telemetry Unit) restarts after a power failure.

Next Page: SCADA: 3 RTUs to Fit Your Spec and Budget
PDFDownload White Paper

Get a Custom Application Diagram of Your Perfect-Fit Monitoring System

There is no other network on the planet that is exactly like yours. For that reason, you need to build a monitoring system that's the right fit for you.

"Buying more than you need" and "buying less than you need" are real risks. You also have to think about training, tech support, and upgrade availability.

Send me a quick online message about what you're trying to accomplish. I'll work with you to build a custom PDF application diagram that's a perfect fit for your network.

Make an Informed Decision

Your network isn't off-the-shelf.

Your monitoring system shouldn't be, either.

Customized monitoring application drawing

We'll walk you through this with a customized monitoring diagram.

Just tell us what you're trying to accomplish with remote monitoring.

Get a Custom Diagram