iET PRS-330 series, Operation Manual, Page: 35 / 67

PRS-330 Series
USB INTERFACE
23
Chapter 4
USB INTERFACE
4.1 Introduction
The USB connection is via a standard USB B
female connector located on the rear panel. This
can be connected to a PC via a standard USB 2.0
A Male to B Male Cable, which is included.
Figure 4-1 USB 2.0 A Male to B Male Cable
The SCPI standard provides a tree like series
of standard commands for programmable
instruments so that similar instruments by
different manufacturers can be controlled by the
same program.
4.2 Capabilities
The USB interface provides remote control over
all functions except
POWER .
4.3 USB Operation
The USB uses the command set outlined in
Appendix B. Data should be terminated with
LF line feed.
4.3.1 USB Interface Drivers
Normally when the PRS-330 is connected to a
computer using the USB port, Windows 7 and
higher will search for the correct driver and as
long as the computer is connected to the internet
the driver should automatically be installed.
The USB driver provides USB control through a
virtual COM Port using the Microsoft’s standard
driver for Virtual COM Ports.
Data rates and formats are below;
Baud rate: 9600 baud
Data bits: 8
Parity: none
Stop bits: 1
If the driver cannot be found the USB interface
uses a standard MCP2200 Driver. Drivers can
be found at the link below if the drivers are not
automatically installed.
http://www.ietlabs.com/Drivers/MCP2200.zip
or http://www.ietlabs.com/prs-300-ieee-ethernet.
html