Rockwell Automation CS3000 V6.1 MMI FlexPak, GV 3000, Liqui-Flo User Manual

Page 77

Advertising
background image

Using PC Scope

9-5

9.2.1 Specifying Signals

Use the Traces group box in the Trace Signal Setup dialog box to specify the signal for
each trace.

To specify a signal, follow these steps:

Step 1. Select the drive signal whose values you want to plot as a trace. The

available signals are determined by the type of drive that is connected.

• Choose the signal or None to be used for Trace A by using the Channel A

list box.

• Choose the signal or None to be used for Trace B by using the Channel B

list box.

Step 2. Choose the type of scale you want to use for each trace.

9.2.2 Setting Up Data Sampling

Use the Data sampling group box in the Trace Setup dialog box to define how the
signal data is to be sampled. The settings apply to both traces. To set up data
sampling, follow these steps:

Step 1. Choose how often you want to acquire signal data by choosing a sampling

rate. Choose from 0.5 ms to 10 s.

Step 2. Choose the number of data samples in the trace. Choose a value from 1000

to 100.

Once you select the sample rate and number of samples, the amount of time
for the acquisition is displayed.

To:

Do the following:

Use rounded units per division
values based on the data in the
trace waveform

Select the Auto Scale option for the trace you
are defining.

The difference between the minimum and
maximum values in the trace data is
determined from the waveform data, and the
values are rounded up to the next whole
value. For example, a value of 1.763 is
rounded to 2.

The minimum and maximum values are also
set to values beyond the actual values in the
trace waveform data.

Specify actual trace vertical axis
minimum and maximum values

Enter the vertical axis minimum and maximum
values in the Min and Max boxes for the trace
you are defining.

Use the scale for Trace A as the
scale for Trace B

Select the option: Use chan A scale.

Advertising