History/Trend Logs


History or Trend Logs are collected data from your system that can be viewed. This allows you to track the history of your system and see how it is responding.

Each history has its own default view, either a History Chart or a History Table. History Charts are typically line graphs, and History Tables are an assortment of points listed in multiple rows, each with data about the point in the columns.


How To View The Trends


Image 1-1 | Inset equipment trend view.

There are two ways to view history logs on your system. The first is from the equipment pages and the second is the Trend Logs page.

EQUIPMENT PAGES:

There are two types of equipment pages in your system; Inset and Pop-up Window.

Inset: An inset page is navigated to by clicking an equipment button on the building navigation bar (left navigation bar). This will load the Graphic, Setpoints, and Trend Logs pages for that equipment. To view the Trend Logs select the Trend Logs tab located at the bottom of the page (see image 1-1).

Image 1-2 | Pop-up equipment trend view .

Pop-up: A pop-up page is normally used when clicking on equipment icons located on your floor plan navigation pages. This will load the Graphic, Setpoints, and Trend Logs pages for that equipment. To view the Trend Logs select the Trend Logs tab located at the top of the page (see image 1-2).

NOTE:

Equipment pages may not have all trends for that equipment displayed. These mostly act as a quick reference for common trends on that specific equipment. Viewing trends from the Trend Log page allows you to view any Log on the system and see them at full screen size.

Image 1-3 | Trend logs page.

TREND LOG PAGE:

The Trend Logs page can be found by clicking the Trend Logs navigation button (top Navigation Bar see image 1-3). This page displays a list of every trend log point on your system. To view the default view of data you can double click the desired trend Log. To specify which view you want to see right click the Log and select the view menu. Here you can chose to view the log as a chart or table. The Trend Log page also contains a History Chart Builder tool.




NOTE:

Using the trend Log page will navigate away from your station. To return to your station press the back button on your web browser to reload the station. If you use the History chart Builder tool it will load up in a pop-up window and keep your station loaded.


History Charts


Image 2-1 | Right-clicked trend log.

HISTORY CHARTS:

Right-click on the points list and on the menu that shows up, hover on Views to see the list of views you can use (image 2-1).

Despite the sharp rises and drops in this graph, the values on the left side (°F) indicate that the total change in temperature throughout the cycle was roughly 4°F. This can be easier to see after clicking the delta symbol button in the upper right (image 2-2).

Image 2-2 | History chart showing a ling graph of space temperature.



Once you have the History Chart up, there is different ways of refining it to show just what you're interested in. Possibly the most simple technique is to pull up more data time span than needed, and then you can click and drag to highlight the desired area. It will select while the mouse button is pressed (image 2-3). Upon releasing the button, your view will zoom in to show just the area that was within your selection.

Image 2-3 | Selecting a time range to zoom in to.








Note that once you're zoomed in, you now have direction buttons, a zoom out button (top), and a cancel zoom button (bottom). Use these to navigate around a zoomed in Chart. Also, note that shown here is the result of a horizontal mouse drag. Drag the mouse vertically to zoom in on a range of data. You can use any of the predefined time ranges, or create a custom time range by selecting Time Range from the pull-down menu, and then clicking on the clock button at the right

After clicking the clock button, an Edit Time Range window shows up. You can enter the start and end times as you wish, and the calendar buttons at the right will help quickly modify the dates listed in the ranges (image 2-4).

Image 2-4 | History chart tool bar.

After clicking the clock button, an Edit Time Range window shows up. You can enter the start and end times as you wish, and the calendar buttons at the right will help quickly modify the dates listed in the ranges (image 2-5).

Image 2-5 | Setting up the chart time extents.

History Tables


Image 3-1 | Choosing history table.

Right-click on the points list and on the menu that shows up, hover on Views to see the list of views you can use (image 3-1).

Image 3-2 | Typical history table view.




When the History Table loads, there are four columns of point data that has been logged. Time stamp is just the time and date of the log. Trend Flags indicate any additional information about the trend entry, such as whether the point was at the start or the stop of history collection. Status indicates the condition of the controller at the time of history collection. If the condition is good it will read {ok}. The final column is the value of the point at time of the collection.


History Tables have the ability to be exported in various formats for distribution or printing. The files that can be exported are:

  • Adobe PDF (.pdf) - Opens in any installed version of Adobe Acrobat
  • Text File (.txt) - Opens in Notepad (Microsoft Windows default application)
  • Comma Separated Values (.csv) - Opens with Microsoft Excel

Click the small button on the right side of the header bar to access the Export menu item (image 3-2) When in the Export window (image 3-3) you'll want to either use "View with external application" or "Save to File". Viewing the items with an external application uses the programs listed above, however they don't need to be installed in order to use the "Save to file" option.

Image 3-4 | Export window.

Image 3-3 | Exporting.




History Chart Builder


To bring up the History Chart Builder tool click the History Chart Builder button located at the bottom of the Trend Logs page (image 4-1).

Image 4-1 | History chart builder launch button.

When the Trends pop-up page is loaded there will be several options you can customize before building the chart. In the top left corner of the page you specify the time by either using the pull down menu of preset time ranges or clicking the clock icon to create a custom time range. The Title field allows you to give a title to the chart. The Grid Lines pull down menu allows you to enable or disable grid lines. Lastly the Rollup menu has a pull down menu with sub options to customize the rollup (image 4-2).

Image 4-2 | History chart builder tool.

On the left side of the page will be a list of you trend logs on your system. To add a log to the Current Charts simply double click the desired Trend point in the Histories section. When this is done that point will appear under the Current Charts.

The points listed in the Current Charts have several customizable features:

COLOR BOX: Click this box to change the color the graph will display for this point.

CHART TYPE PULL DOWN MENU: Here there are several options to change the way the graph will display the data.

UP & DOWN ARROWS: These arrows allow you to change the order of the items on the Current Charts list.

X BUTTON: This button removes an item from the Current Charts list. To clear the entire list you can press the Clear button located at the bottom of the page.

Once you have the settings you desire for the points you can view the graph by clicking the build button (image 5-3). This chart will navigate and function in the same as the History Tables that were describe in the above section on this page.

Image 4-3 | History chart generated.

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