R&S ESR Series User Manual

Remote Control
R&S
®
ESR
602User Manual 1175.7068.02 ─ 12
Linking the Remote Control Library for Visual Basic
Programming notes:
●
Outputting text using the print function
Using the print method, this example displays the value of the variable MyVar in
the "Immediate" window of the Visual Basic development environment. Note that
the print method only applies to objects that can display text.
Debug.Print MyVar
●
Accessing the functions of the VISA32.DLL
To enable users to create Visual Basic control applications, the VISA32.BAS file
must be added to a project so that functions of the VISA32.DLL can be called. In
addition, the VPPTYPE.BAS file must be added to the project. This file contains
constants and definitions for error handling, timeout values, etc.
The modules visa32.bas and vpptype.bas can be found under
<VXIpnpPath>\WinNT\include (typically C:\VXIpnp\WinNt\include).
As an alternative, a reference to the VISA32.DLL can be added to the project.
●
Creating a response buffer
Since the DLL returns zero-terminated strings in responses, a string of sufficient
length must be created before the functions InstrRead() and ilrd() are called,
because Visual Basic inserts a length specification in front of the strings and this
specification is not updated by the DLL. The following two means of creating the
length specification for a string are provided:
Dim Rd as String * 100
Controlling the R&S
ESR Remotely

R&S ESR Series Specifications

General

Brand	R&S
Model	ESR Series
Category	Receiver
Language	English