Tektronix PFG 5105, Instruction Manual

Page: 47 / 89

Programming
COMMANDS
The instrument is controlled by the front panel keys
or via commands received from the controller. These
commands are of three types:
• Setting commands -control instrument settings.
• Query/Operational - request data.
c
Operational -cause a particular action as soon as
the message unit is received over the G PIB inter f ace.
When the instrument is in the remote state, it provides
a response or executes all commands as appropriate.
In the local state, only query/operational commands
are executed; setting and operational commands
generate error responses, since instrument functions
are under front panel control.
NOTE
The PFG 5105 and PFG 5505 each respond to
all commands
as
a PFG 5105. No distinction is
made between the two instruments over the
GPIB bus.
Command Functional Groups
The following list of commands is arranged by func­
tional group; some functional group lists are also
divided into sub-groups.
INPUT/OUTPUT CONTROL COMMANDS
AM ON j OFF
Enables/disables use of the signal applied to the
AM IN connector to amplitude-modulate the main
output signal.
AM?
Returns the amplitude modulation mode status.
Response: AM ON;, or AM OFF;
FM ON j OFF
Enables/disables the use of a signal applied to the
VCO/FM IN connector to modulate the frequency
of the main output signal.
FM?
Returns the frequency modulation mode status.
Response: FM ON;, or FM OFF;
OUTput ON I OFF
Connects/disconnects the main output signal to the
front-panel OUTPUT connector.
OUTput FLOAT
Disconnects the main output signal from the front
3-2
panel OUTPUT connector and terminates it into a
high impedance (floating).
OUTput?
Returns the output signal status (OUT ON;, OUT
OFF;, or OUT FLOAT;).
INSTRUMENT COMMANDS
Store/Recall
RECall < bufnum >
Changes the instrument front panel settings to those
recalled from the specified settings buf f er (butnum).
Buf f er O is a read-only buffer that contains the
power-on settings. Buf f er numbers:
o -
99.
SEND? < bufnum > [, < bufnum > ] ...
Returns the stored settings from the specified buf­
fer(s). Query response: STORE < num > : < binblk >
[, < num >: < binblk > ] ... ;
SEND? ALL
Returns the contents of all stored setting locations,
beginning with buffer 1. Response: STORE ALL:
< binblk > ... < binblk >;
STORe <bu f num > [: <binblk > [, <bufnum >: <binblk>]] ...
Saves the current front panel settings in a specified
buf f er(s) ( < butnum >) for later recall. Buf f er
o
is a
read-only buf f er that contains the power-on settings;
attempting to store settings in buf f er
o
generates
an error. Optionally stores the settings data defined
in binblk in the specified buf f er. < bufnum > : 1 - 99.
STORe ALL: < binblk > ... < binblk >
Sequentially stores each front panel setup defined
in binblk in a settings buf f er, beginning with buffer 1.
Function
FUNCtion SINE
Selects the sine waveform for output.
FUNCtion SQUare
Selects the square waveform for output.
FUNCtion TRIAngle
Selects the triangle waveform for output.
FUNCtion DC
Selects de output at the current value of the DC
parameter.
FUNCtion SPULSE
Selects the single pulse mode.
FUNCtion DPULSE
Selects the double pulse mode.
PFG 51 05/5505 Instruction Manual