Getting Started R&S SMB
1407.0806.32 5.2 E-2
Note:
Manual control is designed for maximum possible operating convenience. In contrast, the priority of
remote control is the "predictability" of the device status. Therefore, control programs should always
define an initial device status (e.g. with the command *RST) and then implement the required
settings.
Getting Started
The short and simple operating sequence given below permits fast putting into operation of the
instrument and setting of its basic functions. As a prerequisite, the IEC/IEEE-bus address, which is
factory-set to 28, must not have been changed.
! Connect instrument and controller using IEC/IEEE-bus cable and switch them on.
! Write and start the following program on the controller:
CALL IBFIND("DEV1", generator%)
'Open port to the instrument
CALL IBPAD(generator%, 28)
'Inform controller about instrument address
CALL IBWRT(generator%, "*RST;*CLS")
'Reset instrument
CALL IBWRT(generator%, "FREQ 50MHz")
'Set frequency to 50 MHz
CALL IBWRT(generator%, "POW -7.3dBm")
'Set output level -7.3m dBm
CALL IBWRT(generator%, "OUTP:STAT ON")
'Switch on RF output
CALL IBWRT(generator%, "AM:SOUR INT")
'Set AM modulation source LFGEN
CALL IBWRT(generator%, "LFO:FREQ 15kHz")
'Set modulation frequency to 15 kHz
CALL IBWRT(generator%, "AM 30PCT")
'Set AM modulation depth 30%
CALL IBWRT(generator%, "AM:STAT ON")
'Switch on AM
An amplitude-modulated signal is now applied at the RF-output of the instrument.
! To return to manual control, press the
LOCAL key at the front panel.
Switchover to Remote Control
On power-on, the instrument is always in the manual operating state and can be operated via the front
panel controls or via mouse and external keyboard.
In case of remote control via the IEC/IEEE bus, the instrument is set to remote control (REMOTE
status) by means of an addressed command.
With remote control via Ethernet, remote control is not automatically set by means of a command. The
instrument must be explicitly set to the REMOTE state, e.g. by sending the interface command >R
(go to remote).
In the REMOTE state, instrument control from the front panel or via mouse and keyboard is disabled.
Menus can be opened, however, e.g. to verify settings. Buttons and setting fields are displayed in gray
and cannot be activated. REMOTE is displayed in the status line.
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