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MELSEC-Q
10. POSITIONING DEBUGGING
[Sampling Buffer area data setting dialog box]
DISPLAY/SETTING DATA
Item Description
"Setup" button Click this button to display the Sampling Buffer area data setting dialog box.
Sampling monitor result
Shows the buffer memory values as waveform data.
The sampling cycle time changes with the sampling interval.
The waveform data are enlarged or reduced according to the screen size.
Sampling interval Choose the sampling interval from among "Fastest", "Fast", "Normal", "Slow" and "Slowest".
Buffer area data
Set the QD75 buffer memory addresses and device sizes to be sampled.
Click the unchecked check box when monitoring double word data such as the feed present
value and feed speed.
The setting range is buffer memory addresses 800 to 1499.
The setting range for double-word data is 800 to 1498, and only even addresses may be set.
Set to 0 when not performing sampling.
Upper Limit
Lower Limit
Set the upper and lower limit values to be displayed as waveform data.
The waveform data near the upper limit value may not appear when the sampling screen is
redisplayed by switching the windows, for example.
In that case, set the upper limit value to a value larger than the sampled value, and also
change the lower limit value to reduce the difference between the upper and lower limit
values.
"OK" button
Click this button to close the Sampling Buffer area data setting dialog box and display the
settings in the Sampling monitor (Buffer) window.
HELPFUL OPERATION
If you do not know the buffer memory addresses of the QD75, you can set them by
the following operation.
Right-click the text box in the Sampling Buffer area data setting dialog box.
The buffer memory addresses and device sizes of the data selected from the right-
click menu are set automatically.