THE CPL PROTOCOL

6 - 29

QUERY PRINT

QP

Purpose:

To obtain the graphical data of the display from the oscilloscope.

The Query Print (QP) command can be used to retrieve a complete display picture, which can be stored as a HPGL file in the PC. This file can then be used in for example FLUKEVIEW, Word Perfect or Word files.

Command:

"QP"

1

CR

Response 1:

acknowledge

CR

Response 2:

print data

null

print data HPGL data bytes.

In the example below the print data is read byte after byte by the PC and appended to the HPGL.HGL file

null

When input buffer stays empty data transfer has ended

Page 246
Image 246
Fluke PM3370B user manual Query Print, Null