Maple-systems HMI5000 Series Manuel d'utilisateur télécharger pdf (Page 158)

152 EZware5000 Series Programming Manual

1010-1007, Rev. 10

Chapter 10 – Bar Graphs, Meters, and Trends

This chapter focuses on three special graphic objects, which can be used to display PLC data registers. You’ve learned

how to use shapes and bitmaps to represent the data in PLC registers as states. You’ve also learned how to use

alphanumeric data fields to display the contents of PLC registers as either numbers or ASCII characters. We now

introduce three more options to display the data in PLC registers:

Bar Graph Objects Trend Display Objects Meter Display Objects

Creating Bar Graphs

The Bar Graph Object is used to represent the data in a 16-bit or 32-bit PLC register as a bar graph. You can configure

the bar graph to move up, down, right, or left. The bar graph can be configured with any base number that represents

0 level and any span range. You can create the bar graph with an alarm low and high setting to indicate to the HMI

operator that an underflow/overflow alarm condition exists. In addition, you can set the alarm low and high limits to

be controlled by two additional PLC registers so that the low and high limits are variable. Bar graphs can even be

constructed with a shape or bitmap overlaying the bar graph to create flow tanks, temperature gauges, etc.

To create a Bar Graph Object:

1. From the Objects menu, click Bar Graph, or click the Bar Graph icon in the Object 2 toolbar. The New Bar

Graph Object dialog box appears.

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Maple-systems HMI5000 Series Manuel d'utilisateur Page 158