B&K 4070A User Manual

Page 60

Advertising
background image

BK Precision 4070A User Manual Rev.2.2

55

7.8.2 Time & Value Floating Point Format

This format uses the same numerical format as Floating Point except that a Time, or Point Number value precedes
each Point Value.

Since the 4070A does not need the Time or Point Number, specifying this format causes the 4070A to skip every
other number it encounters, starting with the first floating point number.

All rules for this format are identical to those for Floating Point Format, except that the Time or Point Number
value need not be between +1.0 and -1.0 in value since the 4070A discards these values during the download.

This format is useful since many graphical waveform design programs allow you to save your work as a disk file
in this format. The filenames often have a .CSV (comma separated values) or .PRN (Printer, tab separated values)
extension. Both file types may be downloaded directly without modification by using the T format switch with
WAVELOAD.EXE or adding a “WT” header when downloading with your own program.

Example

A ten point waveform with SYNC Out set high on point #2:

0,.000000
p
1,.031411E+1
2,.062791
3,-.094108
4,1.0
5,.156434

6,+.187381e-2
7,.218143
8,.248690
9,-.278991e-03
10,.309017

Example #2

The same ten point waveform with the values separated by tabs. Note: Any “space” character(s) defined in the
rules for Floating Point format may be used to separate the numbers.

0

.000000

p
1

.031411E+1

2

.062791

3

-.094108

4

1.0

5

.156434

6

+.187381e-2

7

.218143

8

.248690

9

-.278991e-03

10

.309017x


The “x” character at the end denotes the end of the data and is optional. If the “x” character is missing, the 4070A
will assume all data has been sent after 1 second timeout.

Advertising