Rockwell Automation WebPak CS Software Version 1.0 - Manual (Page 52)

8-8 WebPakCS Software V1.0
8.4 Working with the Cursors
Cursors help you read the value at a specific point on a trace waveform to help you
tune and troubleshoot the drive. PC Scope has two cursor types:
• Y cursors are positioned on a vertical value on the display
• T cursors are positioned on a horizontal or time value
You can read actual data points where the waveform crosses the T cursors. These
values are labeled as@T1 and @T2. Because these are actual data points, you can
use them for calculations. The Y cursor values are based on the scale of the trace
display, so the value is determined by the display resolution and are not as accurate
as the actual data points displayed as the @T1 and @T2 values.
Figure 8.3 – Sample Trace
Trace max.
value
Values at
the cursor
Actual data
points
Trace min..
value
Values at the T cursor location