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6. PRECAUTIONS WHEN DESIGNING A SCREEN
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ MELSEC-A
6.8
Limitations on Displaying Figures and Character Strings When Using the Monitoring
Condition
This section describes the limitations on displaying a monitor screen created
by the GEDE and AD57GPE.
6.8.1
Common limitations
(1)
Display on a graphic screen
(2)
Turning the data collection trigger device ON/OFF
To quickly display figures and characters on a graphic screen, set the
display position of monitor screen data in the following units:
The X coordinates: Coordinates 4 times the integer
The Y coordinates: Optional coordinates
Therefore, to execute the following display, specify the drawing/set-
ting/display position of the monitor screen as follows:
•
•
Part display
Numerical value
and character-string
display
Graph display
Level display
Size of monitor
screen data
Display position of
monitor screen data
Part frame size and display position
(Reference points coordinates)
Display area size and display position
Size of the graph sprite frame and dis-
play position, point intervals, and bar
widths and intervals
Size of the level sprite frame, display
position, and inside coordinates posi-
tion
Set the size in the X axis direction so
that the number of dots is equal to 4
times the integer.
The display position of the X axis is
the range defined by 4 times the in-
teger to 4 times the integer minus 1.
(Specify 4 times the integer for the
coordinates.)
When the monitoring conditions data collection trigger device is set to
display data (part drawings, numerical data, character-string data,
graphs, etc.) use the trigger frequency signal (X16) (see Section 3.4) to
control the ON/OFF timing of the data collection trigger device.
The G-controller turns the trigger frequency signal (X16) ON or OFF
every time data is displayed using all data trigger signals set for the
currently-displayed monitor screen.
A sample sequence program displaying a character string with M10 as
the data collection trigger device is shown below.
6-17
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