Contents
R&S
®
SMU200A
11Operating Manual 1007.9845.32 ─ 15
6.1.4.1 GPIB Interface Messages...........................................................................................453
6.1.4.2 GPIB Instrument Address...........................................................................................454
6.2 Starting a Remote Control Session.........................................................................455
6.2.1 Switching to Remote Control.......................................................................................455
6.2.2 Returning to Manual Operation...................................................................................456
6.2.3 Examples....................................................................................................................457
6.2.3.1 Remote Control over GPIB.........................................................................................457
6.2.3.2 Remote Control over LAN using VXI-11 Protocol.......................................................458
6.2.3.3 Remote Control over LAN using Socket Communication...........................................461
6.3 SCPI Command Structure........................................................................................468
6.3.1 Syntax for Common Commands.................................................................................468
6.3.2 Syntax for Device-Specific Commands.......................................................................469
6.3.3 SCPI Parameters........................................................................................................471
6.3.4 Overview of Syntax Elements.....................................................................................474
6.3.5 Structure of a command line.......................................................................................474
6.3.6 Responses to Queries.................................................................................................475
6.4 Command Sequence and Synchronization............................................................476
6.4.1 Preventing Overlapping Execution..............................................................................477
6.5 Status Reporting System.........................................................................................479
6.5.1 Hierarchy of status registers.......................................................................................479
6.5.2 Structure of a SCPI Status Register............................................................................481
6.5.3 Contents of the Status Registers................................................................................482
6.5.3.1 Status Byte (STB) and Service Request Enable Register (SRE)................................482
6.5.3.2 IST Flag and Parallel Poll Enable Register (PPE)......................................................483
6.5.4 Event Status Register (ESR) and Event Status Enable Register (ESE).....................483
6.5.5 Application of the Status Reporting System................................................................484
6.5.5.1 Service Request..........................................................................................................485
6.5.5.2 Serial Poll....................................................................................................................485
6.5.5.3 Parallel Poll.................................................................................................................485
6.5.5.4 Query of an instrument status.....................................................................................486
6.5.5.5 Error Queue................................................................................................................486
6.5.6 Reset Values of the Status Reporting System............................................................486
6.6 General Programming Recommendations.............................................................487
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