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13.18 XY Plot
The XY Plot displays word data as a line plotted out on x and y coordinates The XY Plot
periodically retrieves a block of PLC data and plots the data out on x and y coordinates
over time. As each sampling period elapses, the new data is read from the PLC and
plotted. When number of plotted points equals plot points, the first points start deleting. The XY Plot
is refreshed on a real time basis.
Procedure to add a Single page XY Plot
1. Click the XY Plot tool or select
XY Plot
from the
Parts
menu.
2. Fill in General Tab Items:
Page type
: Select Single page. Single page is a simple
XY Plot display. Data is plotted as
described in above.
Sampling time
: Time between
point plots in seconds.
Plot point
: The maximum number of sample points
displayed on the plot (10 to 255).
Read address
: Specify the PLC word address of the X
plot data pen. The Y plot pen is Read a1.
Device type
is the word prefix.
Device address
is the word number.
Data format:
Defines data from the controller as
binary (
BIN
) or binary coded decimal (
BCD
).
See Word Lamp 13.2 for format description.
Tag
is used to select the Read address from a list of predefined Tags.
Aux.
directs the Read address to be retrieved from the Auxiliary Port.
3. Fill in the
Plot
Tab: Only
Channel
0 is available.
Description
: A reference name (not displayed) that you
assign to the XY Plot.
Pen attribute
: Specify the pen
Color
and thickness for the
channel.
Value
: Set the
Zero
and
Span
for the Horizontal (H) and
Vertical (V) axis.
4. Click
OK
to position and resize the XY Plot.
Summary of Contents for MMI-1500
Page 2: ...ii...
