SS1000 Operator’s Manual
4
– 01-92-4 A .ver 97020-0009401
lines look like the normal serial output data received before the
Mode 6 command was entered. Look for the three columns of
numbers at the bottom of the file.
4. Click on the upper right cell of the three columns, as shown in Figure
4–8b. Hold the Shift key down while pressing the End key followed
by the Down Arrow key to highlight the third column. Keep holding
down the Shift key and press the End key followed by the Left
Arrow key to select the three columns by 512 rows.
5. Click the Chart Wizard button on the Task Bar.
The Chart
Wizard
should open, as shown in Figure 4–9.
6. Choose the X-Y (Scatter) chart type and the Smoothed Lines
Without Markers sub-type. Click Finish to display a graph of the
spectrum, as shown in Figure 4–10a. If the 2f curve appears flat,
double click on it to get to the Format Data Series Window. Select
the Axis tab, and select Plot Series on Secondary Axis, as shown
in Figure 4–10b. Click OK to rescale the plot.
Modbus Communications Protocol
Modbus is a serial communications protocol published by Modicon in 1979 for
use with its programmable logic controllers (PLCs). It has become a de facto
Figure 4–9 Chart Wizard - Step 1 window.
UK Distibution by IMA Ltd Tel: +44 (0)1943 878877 Email: info@ima.co.uk Web: www.ima.co.uk