HP 8642B Operation And Calibration Manual

Operation
Model 8642A/B
..
Data Output (cont'd)
Output
Active
Function
(OA)
3-18
Output Active Function enables the Signal Generator to output the setting of a selected
ac ti ve
function over HP - IB. The Signal Genera tor ou tpu ts a string that can be directly
read into a numeric variable or into a string variable which includes the HP-IB codes for
both the function and its units specifier (maximum of 19 characters).
Following
is a programming example in BASIC for outputting the active function (OA):
Output the RF frequency setting as either a numeric value or a string from the Signal
Generator (address 19). ("OA' , should be preceded by the function's HP-IB code.)
To
output the numeric value:
10 OUTPUT 719; "FROA"
20 ENTER 719; V Value is output in Hz
To output the alphanumeric character string:
::'0 O'iTPUT 719; "FROA"
20 ENTER 719; A$
The functions and values that can be output over HP-IB using "OA" are listed below along
with some format parameters.
Meanings of Values That Could Be Output
- 200 indicates the function is off.
- 20
I indicates RF.OFF. (for amplitude only).
- 202 indicates reverse power is tripped
(for amplitude only).
A space
character is placed before and after the numeric portion of the string.
Output String Formats
Table 3-4, Output Active Function String Forma.ts (on the following page), lists the output
format for each active function string.
The meanings
of symbols in Table 3-4 are as follows.
s
d
Comments
sign character, either "+" or "_"
digit (Leading zero digits
greater that the one's digit are suppressed.)
If a function's value is in relative units, the displayed, relative setting (not the absolute
setting) will be
output. You can output absolute units by converting from relative units to
absolute units before outputting the active function. Refer to page 3-205 for amplitude
units conversion information.
"OA" can be sent without a function prefix. The first two characters in the output string
will designate the active function. If the Signal Generator does not have an active
function when it receives "OA" without a function prefix, it will output the display string
(which
is the default HP-IB output).

HP 8642B Specifications

General

Brand	HP
Model	8642B
Category	Inverter
Language	English