6 taking a trace snapshot – Rockwell Automation WebPak CS Software Version 1.0 User Manual

Page 54

Advertising
background image

8-10

WebPakCS Software V1.0

8.5.3 Magnifying the Trace Display

You can magnify the area of the trace display that is bounded by the cursors.

To magnify the display:

From the View menu, choose Zoom In or click

.

To return the display back to the normal view:

From the View menu, choose Zoom X1 or click

.

If you selected the Auto Scale option in the Trace Setup dialog box the PC Scope
scales ten vertical axis to even values. This may result in no change when you zoom
into the trace.

8.6

Taking a Trace Snapshot

You can compare one trace with another by saving trace data and displaying it as a
background for the next trace. This saved trace data is called a snapshot. You can
take a snapshot of either trace A or B or both. Also, you can choose a color to use for
displaying trace snapshots (see section 8.6.2).

8.6.1 Taking a Snapshot

To save a trace and have it displayed as the background for subsequent traces, do the
following:

:

To:

From the Snapshot
menu, choose:

Result:

Save the current Trace A as a
snapshot.

Trace A

This trace appears as
the background for the
next Trace A.

Save the current Trace B as a
snapshot.

Trace B

This trace appears as
the background for the
next Trace B.

Save both Trace A and Trace
B as snapshots.

Trace A & B

The traces appear in the
background for the next
traces.

Clear the snapshots.

Clear

The snapshot traces are
removed from the
background.

Advertising