Operating instructions

SYSTem Subsystem R&S ESCI
1166.6004.12 6.214 E-1
SYSTem:COMMunicate:GPIB[:SELF]:RTERminator LFEOI | EOI
This command changes the GPIB receive terminator.
According to the standard the terminator in ASCII is <LF> and/or <EOI>. For binary data transfers
(e.g. trace data) from the control computer to the instrument, the binary code (0AH) used for <LF>
might be included in the binary data block, and therefore should not be interpreted as a terminator in
this particular case. This can be avoided by changing the receive terminator to EOI.
Output of binary data from the instrument to the control computer does not require such a terminator
change.
Example: "SYST:COMM:GPIB:RTER EOI"
Characteristics: *RST value: -- (no influence on this parameter, factory default LFEOI)
SCPI: device-specific
Mode: all
SYSTem:COMMunicate:GPIB:RDEVice:GENerator<1|2>:ADDRess 0 to 30
This command changes the IEC/IEEE-bus address of the device selected as external generator 1 or 2.
Note: If two generators are connected at the same time to IECBUS 2 their addresses must be
different.
The command is only available with option Ext. Generator Control B10.
Example: "SYST:COMM:GPIB:RDEV:GEN1:ADDR 19" 'Changes the IECBUS address
'of generator 1 to 19
Characteristics: *RST value: 28
SCPI: device-specific
Operating mode: all
SYSTem:COMMunicate:RDEVice:GENerator<1|2>:LINK GPIB | TTL
This command selects the interface type of the external generator 1 or 2.
The following types are available
• IECBUS alone (= GPIB, for all the generators of other manufacturers and some Rohde &
Schwarz units)
or
• IECBUS and TTL interface for synchronization (= TTL, for most of the Rohde & Schwarz
generators, see table in command SYSTem:COMMunicate:RDEVice:GENerator:TYPE).
The difference between the two operating modes is the execution speed. While, during IECBUS
operation, each settable frequency is transmitted separately to the generator, a whole frequency list
can be programmed in one go if the TTL interface is also used. Frequency switching can then be
performed per TTL handshake which results in considerable speed advantages.
Note: Only one of the two generators can be operated via the TTL interface at a time. The other
generator must be configured for IECBUS (GPIB).
The command is only available with option Ext. Generator Control B10.
Example: "SYST:COMM:RDEV:GEN:LINK TTL" 'Selects IECBUS + TTL interface
'for generator operation
Characteristics: *RST value: GPIB
SCPI: device-specific
Operating mode: all