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eDNA Trend is a distributed client software program included in the eDNA suite of real time software tools. eDNA Trend is normally considered a "User" tool (client) versus an "Administrator" tool or client. The primary purpose of eDNA Trend is to display historical eDNA information in a trend plot of data values. Data can be plotted as a function of time or to graph one data value against another data value.
eDNA Trend runs on local computers that communicate to your eDNA system via the optimized eDNA messaging protocol. eDNA Trend can display sixteen simultaneous eDNA points on a single trend. These points can be selected from different eDNA Historians located anywhere on your network.
eDNA Trend Features
Trend Type
Data vs. Time (Single or Multiple Y Axis)
Data vs. Time (Single or Multiple Time
Ranges
Data vs. Time
Date Ranges
Specific Start and End Time
Relative Times (i.e., Now - 24
hours)
Data Display Format
Line
Symbol
Line + Symbol
Formatting Options
Color
Font
Symbols
Time & Date Formats
Axis Labeling
Grid Line Display
All Trend options can be modified for the current
trend or stored as a template file for reuse.
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eDNA Trend is network friendly. Using eDNA message centric communication, eDNA Trend communicates through your network only when you request data. eDNA Trend does not require a continuous handshake to be maintained as in non-message centric systems. Data requested for the selected eDNA data points are transmitted on the network as compressed data packets.
eDNA Trend decompresses and translates these data packets on the local machine being used to run eDNA Trend. Due to the high efficiency of eDNA data communications and the effectiveness of eDNA Trend, a large volume of information is rapidly displayed using minimal network or server resources. Using the efficient data transmission eDNA Trend can effectively be used over low bandwidth network connections (modems, ISDN, etc.) while continuing to display graphs of containing thousands of values for multiple points. On faster networks, eDNA Trend is used to display millions of data values in just a few seconds time.
eDNA Trend has a user friendly and intuitive interface. Understandable controls are used to format trend output and select trend points. Trend options include:
eDNA Trend support millisecond time resolution. Using the zoom-in capability high speed transient information can be quickly identified and examined. Trend updates can be performed manually or set to automatically update.
eDNA Trend exports information to Comma Separated Value text files that can be accessed by an external viewer such as Microsoft Excel. This export functionality allows viewing of values and statuses associated with each plotted data point in an ad hoc data report. Engineers and analysts have quick and effortless access to the eDNA information using the tools and techniques they are comfortable with using.
eDNA Trend is fully integrated with eDNA View, the eDNA graphic user interface. From within eDNA View, eDNA Trend is easily launched through the use of hyperlinks. Control parameters placed in eDNA View direct the content and format of eDNA Trend displays launched in this manner. The combination of historical information available in eDNA Trend and the current value information available in eDNA View is a powerful tool that can be used to help you quickly diagnose monitored system health and status.
The "Designed to be Distributed" eDNA licensing allows eDNA Trend to be installed on any PC used by your company.
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