Chapter 7
Programming in G Mode
© National Instruments Corp.
7-3
GPIB-232CT User Manual
Status Information
The function descriptions in Chapter 8 explain that the GPIB-232CT
records
specific status and error information. This means that it stores that
information in its memory so that it is available when you request it.
The function descriptions also explain that the GPIB-232CT
returns
to you
certain information. This means that the GPIB-232CT sends information to
you over the GPIB.
Communicating with the GPIB-232CT and the
Serial Device
The GPIB-232CT knows the type of GPIB data it is processing by using
dual addressing. With dual addressing, the GPIB-232CT recognizes two
different GPIB addresses. The first is the GPIB-232CT's address. The
second is the serial device's address.
Address of the GPIB-232CT
The address of the GPIB-232CT is the primary address you set on the
configuration switch, with secondary addressing disabled.
Address of the Serial Device
The address of the serial device is the GPIB-232CT primary address plus 1,
with secondary addressing disabled. However, if you select a primary
address of 30 with the configuration switch, the serial device will be at
address 0.
The two primary addresses recognized by the GPIB-232CT are referred to
as the GPIB-232CT address and the serial device address.
Addressing Terminology
When the GPIB-232CT receives the serial device address, the data it sends
and receives is referred to as serial data.
