SECTION 3
3.1 INTRODUCTION
This section cdntains information on programming the
Model 199 over the IEEE-488 bus. Detailed instructions for
all programmable functions are included; however, infor-
mation concerning operating modes presented elsewhere
is not repeated here.
Additional I!ZEE-488 information is provided in the
appendix.
Section 3 contains the following information:
3.2
3.3
3.4
3.s
3.6
3.7
3.8
3.9
A Short-cot to IEEE-488 Operation: Gives a
simple step-by-step procedure for getting on the
bus as quickly as possible.
Bus Connections: Shows typical methods for con-
necting the instrument to the bus.
Interface Function Codes: Defines IEEE standard
codes that apply to the instrument.
Primary Address Selection: Tells how to program
the instrument for the correct primary address.
Controller Programming: Demonstrates simple
programming techniques for a typical ~IEEE-488
controller.
Front Panel Aspects of IEEE-488 Operation:
Describes the operation of the bus status indicators,
and summarizes front panel messages that may oc-
cur during bus operation.
General Bus Command Programming: Outlines
methods for sending general bus commands to the
instrument.
Device-Dependent Commands: Contains descrip
tions of most of the programming commands used
to control the instrument over the bus.
3.lJl
3.ll
3.12
Using the Translator Mode: Describes an alternate
programming method of using easily recognized
user-defined words in place of device-depeitdent
commands.
Bus Data Transmission Tiss: Lists typical times
when accessing instrument data over the bus.
Scanner Pmgmmming: Discusses programming
commands used with the optional Model 1992
Scanner.
3.2 A SHORTCUT TO IEEE-488 OPERATION
The paragraphs below will take you through a step-by-step
procedure to get your Model 199 on the bus as quickly as
possible and program basic operating modes. Refer to the
remainder of Section 3 for detailed information on
IEEE-488 operation and programming.
Step 1: Connect Your Model 199 to the Controller
With power off, connect the Model 199 to the IEEE-488 in-
terface of the controller using a standard interface cable.
Some controllers include an integral cable, while others
require a separate cable. Paragraph 3.3 discusses bus con-
nections in more detail.
Step 2: Select the Primary Address
Much like your home address, the primly address is a
way for the controller to refer to each device on the bus
individually. Consequently, the primary address of your
Model 199 (and any other devices on the bus, for that mat-
ter), must be the same as the primary address specified
in the controller’s programming language, or you will not
be able to program instrument operating modes and ob-
tain data over the bus. Keep in mind that each device on
the bus must have a different primary address.
3-1
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