3-30
3
3.7.2 VISA Libraries
VISA libraries provide a standardized application interface for user pro-
grams and outputs that communicate with standard hardware ports such as
PC COM ports, PCI bus, and USB ports. VXI-11 compliant VISA librar-
ies provide VXI-11 calls over the TCP/IP network to communicate with
VXI-11 instruments as shown in Figure 3-2. Agilent, Kikusui and National
Instruments (NI) provide VXI-11 capable VISA and SICL libraries. While
all three VISA libraries run in WIN32 operating systems, VISA libraries
variations are available for some UNIX, LINUX and other operating systems.
Figure 3-2 VISA to VXI-11 Communication Path
The VISA Resource String is:
TCPIP::ip::inst0::INSTR where ip is the ip address
CAUTION
The instructions given in this section are the general steps for using the
Agilent and National Instruments software and may not be accurate for
all versions of their software or for a particular operating system. Check
with their support engineers if you run into any problems using their
software.
3.7.3 Using Agilent’s VISA
Use version 16.0 or later of Agilent’s VISA. It includes VXI-11.2 and VXI-11.3
functions and has been rewritten to work better with VXI-11.3 instruments.
You do have to be sure to keep the link to the 9099 open since Agilent’s VISA
will close the channel when the link count drops to zero. It also inserts non-
VXI-11 commands in with valid commands while doing instrument discovery.
Agilent is aware of these problems and may fix them in future releases.
Содержание 9099
Страница 20: ...1 16 1 Figure 1 1 9009 Outline Dimensions ...
Страница 24: ...1 20 1 Figure 1 3 9099 Certificate of Compliance ...
Страница 54: ...3 8 3 Figure 3 1 Status Reporting Structure Flash Configuration Reset ...
Страница 94: ...3 48 3 This page left intentionally blank ...
Страница 100: ...4 4 6 This page is left intentionally blank ...
Страница 161: ...A 49 A4 Refer to the ErrorLogger utility for the error value definitions Error Meaning 0 No error ...