> For the complete documentation index, see [llms.txt](https://wecon.gitbook.io/pistudio-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wecon.gitbook.io/pistudio-manual/6.-object/6.3-charts/6.3.8-xy-plot.md).

# 6.3.8 XY Plot

**Introduction**

The real time data in cache will display as continuous curve or separated points, each point in XY plot needs 2 addresses to set a point.

**Description**

![](https://3950998874-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Fpi-series-user-manual%2F-LuqB9LT_gvwMaqXcWhj%2F-LuqEAD0pC3jt680o8Xk%2F53.png?generation=1575015464056726\&alt=media)

**1) Source**

**Auto sample:** Select data from \[XY plot] and displayed in a curve according to the set time;

**Trigger Sample:** When the trigger address is set, the data is collected and displayed in a curve. After the data is collected, the trigger address is automatically reset;

**Curve settings:** According needs to set style and color for each curve.

**Read address:** \*for example, PLC word address is D, it points number is m. (point numbers no more than 800);

Word address D is the X coordinate of the first point

Word address D+1 is the Y coordinate of the first point;

Word address D+2 is the X coordinate of the second point;

Word address D+3 is the Y coordinate of the second point;

......

Word address D+2m-1 is the X coordinate of the mth point;

Word address D+2m is the Y coordinate of the mth point;

Because if the number of XY points is m, it is necessary to continuously read 2m words from the address D of the PLC to draw a complete XY picture.

**Quick setting:** Fill in the starting address, according to the parameter settings, automatic allocation of addresses.

**2) Range**

**Variable:** The data range for the graph could be set as a variable;

**X, Y Limit:** Set the max and min value of displaying curve;

**Result**

When all configurations are completed, when the HMI is running, it displays as shown below.

![](https://3950998874-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2Fpi-series-user-manual%2F-LuqB9LT_gvwMaqXcWhj%2F-LuqEAD1rFdrFRRgvjKr%2F54.png?generation=1575015464070628\&alt=media)

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