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Chapter 4: Computer Interface
Operation
4.1 General
This chapter provides operational instructions for the remote interface for the
Lake Shore F71/F41 teslameter. The teslameter supports the following remote inter-
faces for direct user control:
D
USB (emulating a serial communications port)
D
Ethernet
D
Wi-Fi
The F71/F41 teslameter adheres to the Standard Commands for Programmable
Instruments (SCPI) standard, regardless of the remote interface selected for user con-
trol.
4.2 Standard
Commands for
Programmable
Instruments (SCPI)
The F71/F41 teslameter adheres to the SCPI command language. SCPI is a standard-
ized command language, presently maintained by the Interchangeable Virtual
Instruments (IVI) Foundation, used for controlling test and measurement instru-
ments. SCPI provides instrument control with a standardized command syntax and
style.
http://www.ivifoundation.org/docs/scpi-99.pdf
4.2.1 Command Types
There are two different types of SCPI commands that the teslameter responds to:
common and subsystem.
4.2.1.1 Common
SCPI builds upon the IEEE 488.2 standard. Because of this, several of the commands
found in IEEE 488.2 are required by the teslameter to be considered SCPI compliant.
These commands include, but are not limited to, functionality to reset (*RST), clear
the status registers (*CLS), or identify the instrument (*IDN?).
These commands are identifiable by the fact that they:
1. Always consist of three letters and
2. Are always preceded by an asterisk
