Addressing Instruments With Visa - Keithley 708B Reference Manual

Section 2: General operation
Modifying, repairing, or removing Keithley I/O Layer software
The Keithley I/O Layer chains many other installers together.
To remove all the KIOL components, you need to uninstall the following applications using Control
Panel Add/Remove programs:
•
National Instruments NI IVI Compliance Package
•
National Instruments NI-Visa Runtime
•
IVI Shared Components
•
Visa Shared Components
•
Keithley SCPI Driver
After uninstalling components, reboot the computer.

Addressing instruments with VISA

VISA allows you to communicate with the instrument on different communication buses by changing a
resource string that gets passed in with the viOpen function, in VISA-C, or with the Open method on
the VISA-COM resource manager object.
For detailed information on the format of the resource string, refer to the VISA specification VPP4.3 at
the IVI Foundation web site or refer to the help file by the vendor of the VISA implementation you are
using.
The following sections describe the resource strings for some of the communication types that
Keithley supports. Any field that has [] (square brackets) around it is optional and will revert to a
default value.
Addressing instruments through the LAN
VISA supports two different LAN protocols, each of which has a different resource string.
VXI-11 is a protocol that emulates GPIB over the LAN. Models 707B and 708B support this protocol.
The resource string is:
TCPIP[board]::host address[::LAN device name][::INSTR]
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Models 707B and 708B Switching Matrix Reference Manual
707B-901-01 Rev. A / August 2010