Annexes
R&S
®
ZNC
742
User Manual 1173.9557.02 ─ 13
Addressed commands
Addressed commands are encoded in the range 00 through 0F hex. They are only effec-
tive for instruments addressed as listeners.
Command
QuickBASIC com-
mand
Effect on the instrument
GET
(Group Execute
Trigger)
IBTRG (device%)
Triggers a previously active device function (e.g. a sweep). The
effect of the command is the same as with that of a pulse at the
external trigger signal input.
GTL
(Go to Local)
IBLOC (device%)
Transition to the "Local" state (manual control)
PPC
(Parallel Poll Con-
figure)
IBPPC (device%,
data%)
Configures the instrument for parallel poll. Additionally, the
QuickBASIC command executes PPE/PPD.
SDC
(Selected Device
Clear)
IBCLR (device%)
Aborts the processing of the commands just received and sets
the command processing software to a defined initial state. Does
not change the instrument setting.
9.1.3.3
Instrument Messages
Instrument messages (commands) are transferred on the data lines of the GPIB bus while
the ATN line is not active. ASCII code is used.
Structure and syntax of the instrument messages are described in
, on page 368. The chapter also provides a detailed description of all mes-
sages implemented by the analyzer.
9.1.4 Universal Interface
A network analyzer which is equipped with option R&S ZN-B14, Handler I/O (Universal
Interface), can interact with an external part handler. The digital control signals on the
interface connector indicate the possible start and the end of a measurement, as well as
a global limit check result. Typically, the handler will insert the device to be tested into a
test fixture, provide a trigger pulse to initiate the measurement, remove and replace the
device after the measurement is complete and sort it into pass/fail bins. A sample flow
diagram for this process is shown below.
Interfaces and Connectors