Rockwell-automation WebPak CS Software Version 1.0 Manuel d'utilisateur télécharger pdf (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

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 65 66

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Rockwell-automation WebPak CS Software Version 1.0 Manuel d'utilisateur Page 52