Last updated: 23rd November 2000

CIS9942 is capable of driving dual channel power meters. Additional instructions are required in the driver file as highlighted in red below:

Contents	Notes (may NOT be included in driver file)
[LongName]
Example dual channel power meter driver	Up to 5 lines
{Data}
IEEE | RS232	Either IEEE or RS232, not both
Terminator specification	CR, LF, CRLF, CR/LF etc
probe1=Forward	Optional
probe2=Reverse	Optional
.setup
(Command) (Delay in ms)	Unlimited number of lines
.read
(Command) (Delay in ms)	Up to 5 lines, always returns dBm (or formula in configuration coverts to dBm)
.frequency	Optional
(Command) (Units) (Format) (Delay in ms)	Optional - Up to 5 lines
.zero	Optional
(Command)	Optional - Up to 5 lines
END

An example file using a dual channel power meter is shown below - for clarity the section headers have been emboldened and special placeholders shown in colour:

Note: The .read section has two placeholders following the instrument delay operands. These are for the two fields of the return data [ ( \ ; ) and ( ; \ ) ] to enable the Probe #1 and Probe #2 data to be read on the same command line. In this example the data is provided by the instrument in the form:

-34.76 ; -56.33 <cr><lf>

where the two power readings are separated by a semicolon.

This facility can only be used for those test methods which are able to use two power meter readings to provide Forward and Reverse power values to CIS9942.