Status Reporting System - Rohde & Schwarz R&S FSP Series Operating Manual

R&S FSP
Command
*OPC
*OPC?
*WAI
An example as to command synchronization can be found in chapter
trol – Programming
For a couple of commands the synchronization to the end of command execution is
mandatory in order to obtain the desired result. The affected commands require
either more than one measurement in order to accomplish the desired instrument
setting (e.g. auto range functions), or they require a longer period of time for execu-
tion. If a new command is received during execution of the corresponding function
this may either lead to either to an aborted measurement or to invalid measurement
data.
The following list includes the commands, for which a synchronization via *OPC,
*OPC? or *WAI is mandatory:
Command
INIT
INIT:CONM
CALC:MARK:FUNC:ZOOM
CALC:STAT:SCAL:AUTO ONCE
[SENS:]POW:ACH:PRES:RLEV

5.7 Status Reporting System

The status reporting system (cf.
ating state of the instrument, e.g. that the instrument presently carries out a calibra-
tion and on errors which have occurred. This information is stored in the status
registers and in the error queue. The status registers and the error queue can be
queried via GPIB.
The information is of a hierarchical structure. The register status byte (STB) defined
in IEEE 488.2 and its associated mask register service request enable (SRE) form
the uppermost level. The STB receives its information from the standard event sta-
tus register (ESR) which is also defined in IEEE 488.2 with the associated mask reg-
ister standard event status enable (ESE) and registers STATus:OPERation and
STATus:QUEStionable which are defined by SCPI and contain detailed information
on the instrument.
The IST flag ("Individual STatus") and the parallel poll enable register (PPE) allo-
cated to it are also part of the status reporting system. The IST flag, like the SRQ,
combines the entire instrument status in a single bit. The PPE fulfills the same func-
tion for the IST flag as the SRE for the service request.
The output buffer contains the messages the instrument returns to the controller. It is
not part of the status reporting system but determines the value of the MAV bit in the
STB and thus is represented in
5.18
Action after the hardware has settled
Setting the operation-complete bit in the ESR
Writing a "1" into the output buffer
Continuing the GPIB handshake
Examples".
Purpose
start measurement
continue measurement
zoom frequency range around marker 1
optimize level settings for signal statistic measurement functions
optimize level settings for adjacent channel power measurements
Fig.
Fig. 5.4.
Remote Control – Basics
Status Reporting System
Programming the controller
- Setting bit 0 in the ESE
- Setting bit 5 in the SRE
- Waiting for service request (SRQ)
Addressing the instrument as a talker
Sending the next command
5.4) stores all information on the present oper-
Operating Manual 1164.4556.12 - 06
"Remote Con-