Table of Contents
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Chapter 1 — General Information
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About this Manual
This SCPI Programming Manual provides information for remote operation of the Site
Master S331L, Cable and Antenna Analyzer, using commands sent from an external
controller through the USB or Ethernet connection.
This Programming Manual includes the following:
• An overview of the USB and Ethernet connections to the instrument.
• An overview of Standard Commands for Programmable Instruments (SCPI) command
structure and conventions.
• The IEEE common commands that are supported by the instruments.
• A complete listing and description of all the SCPI commands that can be used to
remotely control functions of the instrument. The commands are organized by
measurement mode starting in
This manual is intended to be used in conjunction with the Site Master S331L User Guide.
Refer to the instrument user guide for general information about the instrument, including
equipment setup and operating instructions.
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Introduction
This chapter provides a general description of remote programming setup and interface using
USB or Ethernet, and sending SCPI commands to the instrument.
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Remote Operation Setup and Interface
Remote operation of the instrument is accomplished via the USB or Ethernet interface. The
following paragraphs provide information about the interface connections, cable
requirements, and setting up remote operation.
USB Interface Connection and Setup
The Universal Serial Bus (USB) architecture is a high-performance networking standard that
is considered "plug and play" compatible. The USB driver software is automatically detected
and configured by the operating system of the devices that are connected to the bus. The
instrument conforms to the USB 2.0 standard and is a USB "Hi-speed" device that supports
data rates of up to 480 Mbps with the following restrictions:
• One USB network can support up to 127 devices
• The maximum length of USB cables between active devices is 5 meters (for USB 2.0)
and 3 meters (for USB 1.0)
You must have NI-VISA 2.5 or later installed on the controller PC and must select the VISA
library (visa32.dll) as a reference in a Visual Basic project. For remote USB control, the
controlling PC needs to have a version of VISA installed that supports USBTMC (USB Test
and Measurement Class) devices.
S331L PM
Chapter
3.
PN: 10580-00322 Rev. F
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