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HP 5384A and HP 5385A
Operation and Programming
SECTION Ill
OPERATION AND PROGRAMMING
3-1.
INTRODUCTION
3-2.
This section gives complete operation and pro-
gramming information for the HP 5384A and HP
5385A Frequency Counters. Descriptions of all front
panel controls, connectors, and indicators, as well as
an operator's check, operating instructions, program-
ming instructions and codes, and operator's main-
tenance, are provided. Unless otherwise specified, all
information pertains to both counters.
3-3.
OPERATING CHARACTERISTICS
3-4.
The HP 5384A and HP 5385A can be configured
for system or benchtop use. They make frequency
and period measurements. Inputs enter through two
channels. Raw data from the input measurements are
used by the counter's microcomputer to compute
and format the result either for display or transmis-
sion over the interface. The operating range, reso-
lution and accuracy for each individual functional
mode is given in the Specifications, Table 1-1 .
3-5.
Descriptions of and operating instructions for
Options 001,003, 004,005 are provided in this section.
3-6.
OPERATING INSTRUCTIONS
3-7.
Information and instructions for operating the
HP 5384A and HP 5385A in both local and remote
modes are provided in this section. The following
paragraphs summarize the organization and content
of the operating information.
3-8.
LOCAL OPERATION. The operating infor-
mation for local (or manual) operation of the counter
consists of the following topics:
General Operation Information. The General
Operation Information describes the basic oper-
ation of the instrument display, the inputs, and the
front panel keyboard.
Front and Rear Panel Features. The front and rear
panel features consists of Figures 3-7 through 3-9
which locate and describe all the operator controls
and indicators.
Making Frequency and Period Measurements .
Making Frequency and Period Measurements de-
scribes the recommended procedure for making a
measurement.
3-9.
REMOTE OPERATION.
A good working
knowledge of the local operation of the counter is
essential for remote programming, as most of the data
messages perform the same key-stroke-like sequences.
The Remote Operation/Programming instructions
describe the following:
Interface Description
Interface Functional Overview
Interface System Overview
Address Selection
Interface Function
Interface Commands
Input Format
Output Format
Measurement Triggering in Remote
SRQ, SRQ Mask, and Status Byte
Device Dependent Commands
Device Command Definitions
Power-up and Default States
Programming Examples
3-10.
OPERATOR'S MAINTENANCE
3-11.
The only maintenance the operator should
normally perform is the replacement of the de fuse.
Refer to Section II, Line Voltage Selection, for in-
structions on changing the fuse.
3-12.
The standard oscillator adjustment is also ac-
cessible from the rear panel. The oscillator is factory
set at 10 MHz. Once adjusted, the oscillator should
need little future attention except for periodic cali-
bration using a precision frequency source. To adjust
the standard oscillator, refer to Section V, Standard
Oscillator Adjustment.
3-13.
GENERAL OPERATION
INFORMATION
3-14.
Introduction
3-15.
The following paragraphs describe the general
operating features of the HP 5384A and HP 5385A Fre-
quency Counters.
3-16.
Display
3-17.
All display functions are performed by a Liquid
Crystal Display assembly. The assembly contains 12
alphanumeric characters; the display format for all
measurements is in engineering notation. The left-
3-1
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