HP 16501A LOGIC, Руководство программиста

Страница: 82 / 252

Introduction
This chapter describes the operation of instruments that operate in
compliance with the IEEE 488.2 (syntax) standard. It is intended to
give you enough basic information about the IEEE 488.2 Standard to
successfully program the Logic Analysis System. You can find
additional detailed information about the IEEE 488.2 Standard in
ANSI/IEEE Std 488.2-1987,
IEEE Standard Codes, Formats,
Protocols, and Common Commands.
The HP 16500C Logic Analysis System is designed to be compatible
with other Hewlett-Packard IEEE 488.2 compatible instruments.
Instruments that are compatible with IEEE 488.2 must also be
compatible with IEEE 488.1 (HP-IB bus standard); however, IEEE
488.1 compatible instruments may or may not conform to the IEEE
488.2 standard. The IEEE 488.2 standard defines the message
exchange protocols by which the instrument and the controller will
communicate. It also defines some common capabilities, which are
found in all IEEE 488.2 instruments. This chapter also contains a few
items which are not specifically defined by IEEE 488.2, but deal with
message communication or system functions.
The syntax and protocol for RS-232-C program messages and
response messages for the HP 16500C Logic Analysis System are
structured very similar to those described by IEEE 488.2. In most
cases, the same structure shown in this chapter for IEEE 488.2 will
also work for RS-232-C. Because of this, no additional information has
been included for RS-232-C.
6–2