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R&S WinIQSIM2 Software Manual - Rohde & Schwarz

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R&S ® <strong>WinIQSIM2</strong><br />

Automation of R&S <strong>WinIQSIM2</strong><br />

Remote Control Basics<br />

Through this description, the term “instrument” is used to indicate the R&S <strong>WinIQSIM2</strong>;<br />

the terms “instrument”, “software” and R&S <strong>WinIQSIM2</strong> are used interchangeably.<br />

6.1.1 Remote Control Interfaces and Protocols<br />

The instrument supports different interfaces for remote control. The following table gives<br />

an overview.<br />

Table 6-1: Remote control interfaces and protocols<br />

Interface Protocols, VISA *) address string Remarks<br />

Local Area Network<br />

(LAN)<br />

Protocols:<br />

●<br />

●<br />

VXI-11<br />

VISA *) address string:<br />

TCPIP::host address[::<br />

LAN device name][::INSTR]<br />

socket communication (Raw Ethernet,<br />

simple telnet)<br />

VISA *) address string:<br />

TCPIP::host address[::<br />

LAN device name]::::<br />

SOCKET<br />

A LAN connector is located on the front or rear panel of the instrument,<br />

or both.<br />

The interface is based on TCP/IP and supports various protocols.<br />

For a description of the protocols refer to:<br />

● ​"VXI-11 Protocol" on page 132<br />

● ​"Socket Communication" on page 132<br />

* ) VISA is a standardized software interface library providing input and output functions to communicate with instruments. A VISA<br />

installation on the controller is a prerequisite for remote control over LAN (when using VXI-11 or HiSLIP protocol), USB and serial<br />

interface. However, no VISA installation is necessary to remote control while using socket communication. For more information, see<br />

​chapter 6.1.1.1, "VISA Libraries", on page 129.<br />

Within this interface description, the term GPIB is used as a synonym for the IEC/IEEE<br />

bus interface.<br />

SCPI (Standard Commands for Programmable Instruments)<br />

SCPI commands - messages - are used for remote control. Commands that are not taken<br />

from the SCPI standard follow the SCPI syntax rules. The instrument supports the SCPI<br />

version 1999. The SCPI standard is based on standard IEEE 488.2 and aims at the<br />

standardization of device-specific commands, error handling and the status registers.<br />

The tutorial "Automatic Measurement Control - A tutorial on SCPI and IEEE 488.2" from<br />

John M. Pieper (R&S order number 0002.3536.00) offers detailed information on concepts<br />

and definitions of SCPI.<br />

Tables provide a fast overview of the bit assignment in the status registers. The tables<br />

are supplemented by a comprehensive description of the status registers.<br />

6.1.1.1 VISA Libraries<br />

VISA is a standardized software interface library providing input and output functions to<br />

communicate with instruments. The I/O channel (LAN or TCP/IP, USB, GPIB,...) is<br />

selected at initialization time by means of the channel–specific address string ("VISA<br />

<strong>Software</strong> <strong>Manual</strong> 1008.0858.42 ─ 10<br />

129

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