Ceyear 1465 Series, Руководство по программированию

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2 Remote Control
2.3 I/O library
29
2.2.2.2 Interface configuration
The user may need to modify the GPIB address when building a system with a signal generator. The
GPIB address of the machine is 19 by default. The method to change the GPIB address is as follows:
Press
【
System
】 →[GPIB Interface] to enter the interface shown in Fig. 2.9, so as to make changes in
the local GPIB address input box by using the numeric keys on the front panel.
Figure 2.9 GPIB Interface Settings
2.3 I/O library

General ................................................................................................................ 29

Installation and Configuration ............................................................................. 30
2.3.1 Overview of I/O library
As a library of software programs pre-written for the instrument, the I/O library is called an instrument
driver. It is considered as the intermediate layer of the software between the computer and the
instrument hardware equipment, composed of function library, utility program and tool kit, and used as a
software code module set that corresponds to a planned operation, e.g. configuring, reading from,
writing to or triggering the instrument. It resides in the computer as the bridge and link between the
computer and the instrument, and provides an easily programmed high-level modular library so that the
user no longer needs to learn complex low-level programming protocols specific to an instrument. The
instrument driver is the key to rapid development and test of measurement applications.
From the aspect of function, a general instrument driver usually consists of a functional body, an
interactive developer interface, a program developer interface, a subprogram interface and an I/O
interface as shown in Fig. 2.12.