R&S ESU Series Operating Manual page 377

R&S ESU
• IFC
This field selects the interface type of external generator 1 or 2. The following
types are available:
– GPIB: GPIB only, suitable for all generators of other manufacturers and some
– TTL: GPIB and TTL interface for synchronization, for most of the Rohde &
The two operating modes differ in the speed of the control: Whereas, with pure
GPIB operation, each frequency to be set must be individually transferred to the
generator, additional use of the TTL interface permits to program a total frequency
list at once and subsequently perform the frequency stepping via TTL handshake,
which is a big advantage in terms of speed.
Generators equipped with the TTL interface can also be operated with GPIB only.
Only one of the two generators can be operated with TTL interface at a time. The
other generator must be configured for GPIB.
• GPIB ADDR
GPIB address of the respective generator. Addresses from 0 to 30 are possible.
• MODE
Operating mode of generator. The generator activated using the FREQUENCY
SWEEP softkey is automatically set to remote mode (REMOTE), the other to
manual operation (LOCAL).
• F MIN F MAX
Frequency range of generator. Select the start and stop frequency of the
R&S ESU in a way that the specified range is not exceeded. If the start frequency
lies below F MIN, the generator is only switched on when F MIN is reached. If the
stop frequency lies above F MAX, it is limited to F MAX when the generator is
switched on using the EXT SRC ON/OFF softkey.
• P MIN P MAX
Level range of generator. This field defines the allowed input range for the
POWER column in the FREQUENCY SWEEP table.
Remote command:
4.346
Rohde & Schwarz instruments
Schwarz generators, see table above.
SYST:COMM:RDEV:GEN2:TYPE 'SMA01A'
SYST:COMM:RDEV:GEN:LINK TTL
SYST:COMM:GPIB:RDEV:GEN1:ADDR 28
External Generator Control – Option R&S FSP-B10
Operating Manual 1302.6163.12 - 03
Instrument Functions