Racal Dana 488 User Manual

PRELIMINARY

OPERATORS MANUAL

;

MODEL

L1'--'

GPIB

RACAL-OANA

(0) (0)

c=Jc=J

ANALYZER

PUBLICATION NO. 980551

PRELIMINARY

OPERATORS

MANUAL

MODEL

.,-..,

CC»

(0)

c:=:Jc:=:J

GPIB

RACAL-DANA

RACAL

18912

Telephone: [phone].

RACAL

Duke Street.Windsor . Berkshire SL4 1$8, Uni ted Kingdom

Telephone: Windsor

RACAL

18 Avenue Dutartre, 78 150 Le

Telephone:

RACAL

Herrre onstre

·DANA

sse

29.

Telephone: 0

ANALYZER

-DANA INSTRUMENTS INC.

Van

Karman Ave., trvine , CA 927 15

lWX

; 910-595-1136. TLX. 67-8341

·DANA

·DANA

INSTRUMENTS.

0·6078

INSTRUMENTS LTD.

1075351

13J

955-8888.TLX:

Neu lsenburg. Federal RepublicofGermany

610

69811,

INSTRUMENTS S.A.

2·286112. TLX: 412896

TLX

Oesoev

LTD

., DEUTSCHLAND

697215

: 847013

. France

PUBLICATION

Copvrig

Printed in the United S

This bookor

with

ht@198

part

s ther

outwritten

DATE:

1 by Recat-Dana Instruments, Inc.

tates

of America. All rights reserved.

eof

may notbe reproduced in any

permi

ssion at the publishers.

JULY

1981

for

m

WARRANTY

Within one yearofpurchase. Racal-Dana will repair or replace
instrument, at
workmanship. All parts and labor charges

Instruments.

in U.S.A., Windsor (07535) 69811 in England, 027-7575 in France,

or 06102·2861/2 in Germany for assistance. We will advise you
proper shipping address for your prepaid shipment. Your instrument

will

be returned 10

PROPRIETARY

This document and the technical data herein disclosed. are proprietary

10 Racal-Dana Instrumen ts. tnc.. and shall not, wit hout express wr

permission of Racal-Dana Instruments, lnc., be used, in whole or in

part to solicit quotations from a competitive source or used for manu­facture by a

mation herein has been developed at private

used for operation and maintenance reference purposes

of engineering evaluation and incorporation

cations and o ther do
from Racal-Dana Instruments, Inc.

our

opt

ion,

if in any way it is defect ive in mate rial or

will be paid by Racal-Dana

Just

call Racal-Dana Product Service at

you

freight prepaid.

NOTICE

nyo

ne ot her than Racal-Dana Instruments, Inc.

expe

nse, and may on ly be

into

cum

ent

s which specify procurementofprod ucts

(714)

or

for purposes

technical specifl-

your

833-1234

itt

The

infor -

the

en

•

•

TABLE

OF

CONTENTS

Section
Specificati ons

SECfION I GENE RAL DESCRIPT

1.1 Purpose \-)

Title

ION . I-I

Page

vii

1.2 Scope . \- 1

1.3 Pro

1.4 Electrical Description

1.5 Mechanical Description 1-3

SECTION 2 INST ALLAn ON . 2-1

2.1

~

.2

~.3

2.4

2.5

2.6

SECf

3.1 Introdu ct ion

3.2 Preliminary Ins

3.3 Control and Indicators

3.4 Triggering and Display of Data

3.5 Operation Descript ions

3.5. 2 Trace Mode

3.5.3 Passive . .

3.5.4 S/S (Single Step) .

3.6 Connectio

3.7 Example Applications .

3.7.1 MLA7 (My Listen

3.7.

2 MTAI7 (My Talk Address 17) .

3.7.3 Bus Hang-Up

3.7

-.

.4 Hardware/Int

3.7.5 In

3.7.6 High Speed to Single Data Viewing

duct

Suppor

Purpose . . .

Unp

acking

Shippi ng Container Requirements

Initial Prepara tion

B

att

ery Installation .

GPIB Cab le Attachment

ION 3

OPERATION

and

t .

Inspection

tructi

ons

ns.

Addr

ess 7 )

..

erf

ace BusChe

strument

/Int

erf

ace Bus Check Out

ckout

1-1

1-~

2

-1

2-1

-1

2

2-2

'-

,

2-3

3-1
3-1

3-1
3-1

3-6

3-8
3-8
3-8

3-9
3-11

3-11

3-

1:2

3-14
3-16

3-18

3-20

3

-22

v

LIST OF ILLUSTRATIONS

Figure

1.1 Dimensional Outli ne

:'!.l GPIB Connector . . .

3.1 Analyzer Control

3

.::!

l e D Display Exhibits . .

Title

location

Page

1-4

2-3
3-2

3-4

LIST OF TABLES

Table

3. 1 Analyzer Control Description 3-3

3.2 Panel Con

3.3 Analyzer ASCII Codes . . . 3-7

3.4 Abridged

3.5 488 Test Point Assignment . . . 3-11

tro

Operat

Title

ls Description . 3-4

ion Instructions . 3-10

Page

VI

SPECIFICATIONS

GENE RAL DESCRIPT iON

The GPIB Bus Analyzer is a b
instrum ent which can trace, single-step or s
a triggerword.

It

c

ont

ains a40x 1I bit memory.

att

ery powered

GENERAL SPECIFICATIONS

Power Req

uirements

Fou

r alkaline C Type cells,

7.0 - 4.5 volt s, 200 mW

ma

ximum

Weight 2 Ibs. wit h ba

Dim

ensions W

idth

:

tte

ries

6"(I52.4mm)

Length : 9-1/4"(234.9 mm)

Height : 3-1/2" (88.9 mm)

Warran ty Standard w

Exhibit inside fro

emp

eratu re Range

T

O

perat

ing osc to +

Storage - 55 to + 75°C

Humidit

y

oDe to 25

arr

anty state ment:

55°C

°C

25° C to 40°C

40°C

to 7SoC

top

nt

page.

95% RII

75% RH

45% RH

0

11

ELECTRICAL SPECIF ICATIONS

Low Battery

Annu

nciator

Lo,d

Driver In a

At 4.5 1 0.25 Volts

an

nunciatorturn

Meets IEEE-STD-488-1978

DC load requiremen ts

ccor

dance

488-1978

for NRFD and ND

vii

s ON.

wit h IEEE-STD-

Driver Specification

AC

SPEC IFICATIONS Conti

nued

ELECTRICAL

Handshake Speed 100 K bytes/sec. typical

Trigger Poi nts 3 points: START

FUNCT

Trace

Passive Displays the statusofthe

S/S
Memory

Trigger

IlISPLAY SP ECIFI CATIONS

IONAL SPECIF ICAT IONS

Continued

or single s

MIDDLE (19),

Records f

Single ste ps
Reco rds 0 10 bits, ATN. SRQ

and EOl wo rd - 40 words
Triggers on bits

DlOS, ATN,
with comb inationsof0, I
X. (X = Don 't ca re)

tep

or ENIl (39 )

rom

Gr

lB

or

stops the GPIB

Dial

SRQ

(00

).

throu gh

and EOI

GPIB

deep

or

•

Type
Data 2 Hexadecimal

Mem

or

y Location

GPIB Annunci

Instru

ment

Battery

Condition LO BAT

ators

Sta tus

LCD (Liqu id Crystal Display)

2 Decimal digits
symbol db (d

ATN NRF D
SRQ

EOI REN
DAV IFC

ARM

viii

(00

at

a bus)

NDAC

(0

th rou ghFF)

to 39 ) or

SECTION 1

GENERAL DESCRIPTION

1.\ PURPOSE

1.1.1 Racal-Dana Instruments prepared this Instruc-

tion

Manual for the Model 488CP
manua
nece ssary to empl
m
proc
ma
pub
users
the in

l provid es th e user

oy

thefeatures

ent.

Also, the manual presents the m

edu

res requi red by tech nical pe

ximumperf

lished specifica tions.

and
str

ument.

orm

ance speci fie d by Racal-Dana in the

technician s read this

with

It

is rec

IB An

the operat ing

designed

manu

into

ople

to

omm

ended

al before operating

aly

zer. The

procedu

the instru-

aint

obtain

that

res

en ance

tilt.'

the

1.2

1.2. 1 The In

tio n for the M

seque nce. starting

through

sections fou r
inclu de : Genera l Desc
Maintenance, Drawi ngs, anti Parts List.

1.3 PRODUCT SUPPORT

1.3.1 Racal-Da na Ins
Engineering Labo

mcn t and Pa rts Department to su p
commitment.
of

Field Represen tatives and Area Service Ce nters with

service personnel available for consultation. The com-

et

pl

Thewar

forwa rd

SCOPE

stru

ctio

n M

anual

pres

ent

odel

488 GPIB Analyzcr in a fun

with the

threeand

thro

e list appears

ranty programdeclarationis presented in

sectio

n o f this

continuing with the Main tenance

ugh seve n. The sec tio ns in the manual

rip

rat

ory,field Engineers, Service Depart-

furt

her su pport is provided by a networ k

on

the last

man

Oper

ato

r's

tion, Installation.Oper

tru

ments maintains a complete

port

two

pages of the manual.

ual.

s th e informa-

ctio

nal

sec

tio

ns on e

ation

the pro du

the

•

.

ct

I-I

1.4 ELECT RICAL

1.4. 1 The Model 488 G PIB Analy zer is designed

DES

CRIPTiON

specifically 10 monitor and service abnorma lities in

I

E E E·Standard~48 8-1978

<GP1Bl systems. Th e an
into

any GPIBsyste m (stack

Gene ral Purpose Interface Bus

alyzcr

can be easily

connecto

con

nec ted

r) for t ransparen t

analysis of the bus data.

104

.2 The analyzer features three operating modes:

•

a.

TRACE Mode;

memory.

and

data

is cap tured. stored in

later

displayed fo r analysis.

b. PASSIVE Mode: presents the bus transactions

in real

c. S/5 (Single Step)

actions

These
START

modes

/ENDswitc

provid ing variat ionsofthe

1.4.3

data
inter pret

The user is provided with t

from the L

the bus data:

a. Memory Locat ion displays s

tions in decimals digits

exhibits db (d

time

on the display.

Mode:

to be

stopped

are

enhancedwith
hes which increase flexibility by

allows

or single-step.

ARJ\.I/STE

basic opera tion.

hree

categ

eD

(Ilquid -crystal-display I to visually

tored

00 to 39. The display

ata

bus) when directly viewing

bus tra ns-

o ries o f

data

the bus.

of

b. Data displ ays one

bytes in m

bus.

emor

the 40 hexadecimal

y or can display data from the

I' and

loca-

dat

•

a

c. Bus line sta

status indicators. in addition to low b

and arm are also provided.

tus

indicators plus two analyzer

1-2

att

ery

1.4.4 The user can observe signals with short dur a-

tion that are expanded with special pulse stretching

circuits. The REN line is at logic one(O.8Y) when the

tor

REN annuncia

is displayed. The pulse stretcher
turns it OFF for a visible period of time if the REN
lines go to logic zero (2Y) for 2

/-ISor longer. The IFC

line is at logical one (O.8Y), when the IFC annunciator
is displayed. The pulse stretcher turns it ON for a
visible period of time if the IFC line goes to a logic

O IlC

(O

.8Y) for 2 Ji S or longer.

1.4.5 The 488 Analyzer provides a terminal with 17
Test Points (TP) which parallels the GPIB connector.
The 18th TP provides the trigger

output

for peripheral

device. These TP connections expand the diagnostic

applications of the unalyzer. The lest point assignments
are listed in Table 3.5.

J.4.6 The 488 operates from a batte ry pack con-

taining 4 C-typc cells.

1.5 MECHANICAL IJESCRIPTION

1.5.1 The physical dimensions of the 488 Analyzer

are

out

lined in Figure 1.1. The top view shows the

control panel with the contro l switches for TRI GGER

of

condition, MEMORY and POWER on/

f. The LCD
Memory Location and Data display with nine status
indicators are also located on th e control panel.

1.5.2 The rear panel includes the GPIB connector

and the parallel test poi

(TP) terminals. The bo

tto

nt

panel of the analyzer provides the battery pack access

oor

and concise operatin g instructions.

d

1-3

m

SECTION 2

INSTALLATION

2.1 PURPOSE.

2.1.1 This section describes the suggested

dures

Dana. Th e sub
preparation, ba

2.2 UNPACKING AND INSPECTION.

2.2. J Prior to unpacking the instrume
the

damage (all irregularities should be n

bill). Care fully remove the in

packaging and inspect the instrurrent forany signs of
dam
apparen t.

2.2.2 If
a qualified person should bench check the unit im-

mediately. If findings are

the carrier must follow immediately.

upon

exterior

age. Notify the carrier immediately if damage is

receiving a new in

jec

ts includ e unpacking, packing, initial

tte

ry supply, and cables.

of

the shipping carton for any signs of

dam

age to the unit is apparent or suspected,

strum

ent from Racal-

ot

ed on the shipping

strum

ent

from the ca

not

satisfactory, a report to

nt,

pro

ce-

examine

rton's

2.3 SHIPPING CONTAINER REQUIREMENTS.

2.3.1 When shipping the in

shipping carton with plastic dust cover
necessary protection. This carton should be preserved,

if

it

is possible.

2.3.2

available,

When the original

r

eco

nstruct the packaging to approach

2-1

strument

shipp

ing carton is

, the original

will provide the

not

the

protection designed into the original shipping

listed next:

a. Wrap the unit in a plastic cover.

carton

as

b. Spray the

plastic foam.

c. Place the unit on the plastic foam in the

carton.

bottom

Permit to expand.

about

ccnter.

of

a suitable carton with

d. Surround the unit with plastic foam .

e. Seal the carton.

2A INITIAL PREPARATION.

2.4. 1 Preparing the analyzer for use requires the
GPIB
installed as described next.

connec

2.5 BATTE RY INSTALLATION.

2.5.1 The
screw-locked

2.5.2 To install the ba tteries. turn the b
retaining screw

is freed from the case (the

secured

under

tor

cable and the

battery

battery

the case).

cover on the

coun

terclockwise (CCW) unt il the cover

battery

pack is accessible through the

bottom

other

end

of

power source

panel.

att

ery cover

the cover is

•

::.5.3 Extend the
bottomofthe bat tery cage.

To release the batteries from the cage, pull
the release strap tab that

last cell.

battery

release s

extends

2-2

trap

around

along the

the

2.5.4 Install the cells over the batt ery release strap

so that the polarity markings on the cell match the

att

markings on the b

ery holder.

2.5.5 Install the ba

tte

ry cover; start with end that

slips under the case, then secure the screw-lock by

turnin g the screw clockwise.

2.6 GPIn CABLE AITACHMENT.

:!.6.1 The analyzer is attached to a GPIB system

thru a 14-con

ductor

GPIB cable. Care must be taken

when makingthe connection to avoid using two different

of

•

screw th reads. The type

by the color

of

the bolt; black for metric, chrome for

threads used are indicated

non-metric. The analyzer uses the standard specified
metric thread. Racal-Dana part numbers for GPIB

cables are 406845 (I meter), and 4068 44 (2 meter) and

406846

(4 meter). Figure

2.1

illustra tes the 488 GPIB

connector and pin number assignment table.

12 11 10 9 8 7 6 5 4 3 2 1

24 23 22

21 2 0

19

18 17 16 15 14 13

~

Pin No.

I

2

3

4

5

6

7
8 NDAC

9
10
11 ATN
12

Pin

Assignment

DI

D I

DI

D2

010

3

0

104

EO

I

DAV

NRFD

IFe

SRQ

SHIELD

No.

I3

14
15
16

17

18

19
20
21

22

23

24 GND,

Figure 2.J - GPlB Connec tor

2-3

Assignm

0 10 5
010 6

DI
DI

REN
CND
CND
CN
CND
CND, ( ID)
CND

D7
D8

D,(

,(

6)

,(

7)

8)

,(9)

,(II)

lOG

ent

IC

SECTION 3

OPERATION

3.1 INTRODUCTION.

3. 1,1 This section contains operating instructions
str

for the analyzer. The informatio n contains illu
of

panel co

a tabular listing

Operating instructions for the analyzer are presented in

two

ways; a description

lowed. where necessary. with a step-by-s

example. Some operating feat ures o r functions are
simple one or two step
arc included.

ntro

ls, ind icators

of

and

connectors along with

the function and purpose for each.

of

each

ope

rating feature fol-

tep

op

erations and thus no examples

ations

operating

3. I.:! The analyzer

1978

describe the operation proceduresofthe ana lyzer and

will review the basics

3.2 PRELIMINARY INSTRUCTIONS.

3.2.1 Before operating the analyzer,itis recom-

mended that the user read th is entire section. then verify
that the batteries are insta lled correctly. Next, slide the
POWER switch to ON. This will activate the display,
indicating that the analyzer is rea

3

3.3. 1 There are basically 4 groupsofcontrols. One

group establishes the mod e of operation, (TRACE,
Passive, 5/5). A second
STEP switch. An

IJITION (IlI O I through IJI0 8. ATN. SRQ. EO!).

bus

environment;

.J

CONTROL AND INDICATORS.

ot

operates

therefore. this

of

her grou p sets theTRIGGER CON-

3-1

in the IEEE-

GPIB in sub-sections 3.8.

dy

group

includ es the ARM/

section

for

STl

opera

>-488-

will

tion.

Finally, one group is used to control memory (UP­DO

WN

. START-END). The location o f each switch is

shown in Figure 3. 1. Each switch is

3.1

described in Table

RACAL

~""",y

LOCA

I

•

,

;§x

0

P

OWER

ON

·DANA

TION

,

x§x§

§

ATN

SRQ

TRI

6

488

CA"

GGER

GPIS

ANAL

YZER

CONDITIO

0'

0

,

•

x§x§x§

~E~

I f

STA RT UP ARM

TRAa

' 0 '

•

•

N

I

, ,

a

,

x§;

0

ORY

I

§x§

§

0 "

Figure 3./ - Anaiyzer C

x§

§

''"

0000

ontrol

3-1

§

END

§

DOWN

Locatio"

§

sree

•

Table 3.1 . Analyzer Control Description

DJ

se:

In

...

T•

.,m.d_

,

x

o

,

rtvn It

•

".

S

lll'

\I t \t

OR'

-1\1"'

........

'

"

00"-'

'IH

\tOR'

'T

•

Slur

""""

RlrTIO~

.....hp...

rh<

3

PN'_

.""In....

.

"ODd._.._.

I

T1lK

11

nu

Id.

lltK

" , _ k O '

'" 3

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Th< TR\ , E """"" ..

.t>on."

r h< •

11

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In <; S .-o.J. Ih.
In S S

.. . ",,",-.1

,>,

1" "_,......

110"

A .I

_l>

J<I'

:0

..,."

••

......

1•• .,. ,he

, .... S

~

,~

I R

l<ol:;J11

J'OlI'Kln

.-00.

) J'O"I'K>n.....

po""""

powl_..,

..

In ,

.......

lQItuo.-t

riot

11",

'_'

1 :

MOll

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J :

u.

OI\l

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p<OUt_••,--.

pout"'"~......"'......

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(;rl

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('O~llIII

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u'tiP"''''t>tI'o

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'1><'

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'kGl'II

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,0n,II,_..

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DIO!I'

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...............

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K'>'(~

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tu.nJoh.

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(;(;11t CO

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<1.,......

.th

'1'«'<1

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•. In ru,n Of S S

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........"Y

IO R'COni

","",.kd

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bu'

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p<o.:...,1i

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............. sn r

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to

""'''

3.3.2 Indicators includ e MEMORY LOCATION ,
DATA. and

shown in Figure 3.2 and described in Table 3.2.

IQ individual indicat

or

s. The display is

RACAL·DANA

l O BAT

nn

n I

MEMORY

LOCATION

Figure 3.2 - LCD Display Exhibits

Table 3.2 · Panel Controls Description

REFERENCE

488

GPl8

ANALYZER

/_

II

1

_

11

_"_1

DATA

12

DESIGNATOR DESCRIPTION

I

2 SRQ Service Request

3 ATN

LO

BAT

3-4

Low B

att

ery status

indica

tor

status indi ca

Att

ention status

indicato r

tor

Table 3.2 - Panel Controls Description Continued

REFERENCE

4 IFC

5

6

7 NRFD

8

9

DESIG

REN

DAV

NDAC

AR~

I

NAT

DESCRIPTION

OR

Interface Clear
status indicator
with pulse stretche r

Remote Enable

Status in

with pulse stretcher

Data Valid status

indicator

Not Ready For

Data status

indicator

Not Data Accepted

status indicato r

Analyzer sta tus

indicator

dic

ato r

10

11

1:01

DATA(OQ-FF

12 MEMORY

LOC

ATI

) Data that is

ON

3-5

End or Id

status in

or

rec

enti

fy

dicator

ded du ring
a bus transaction
in flEX code. Real

time bus d isplay

Shows the relative

location of a re­corded bus trans­action or if the bus
is displayed directly

3.4

3.4.1 Th e user servicing a bus with the analyzer
should refer to the list
sages shown on the label attached underne
(Table 3.3). These bit patterns, normally ASCII encoded,
provide the user with specific trigger words that are
required when setting the T RIGGER CONDITION
switches.

TRI

GGERIN G AND DISPL

of

int

AY

OF DATA.

erf

ace and program mes-

ath

the unit

3.4.2

used to transmit and receive

control systems. The LSD vertical row from 0 to F
(Hex) and the MSD
together list the letters, numbers, special cha racters and
contro l modes applicable to the GPIB (sce

para. 3.4.3).

3.4.3 Table 3.3 allows easy transfer from Hex to

The

ASCII seven bit mode is the convention

data

in GPIB instru

top

horizontal row 0to7 or 8 to F,

examp

ment

le in

binary for setting the TRIGGER CONDITION switches

and also to transfer from the dat a displayed to th e
ASCII character on the GPIB.

Example:

Assume the data display reads 45. The MSD col
4 or C represents the characters @
the LSD column indicates that row 5 lists the char­ac

ter

E as the one being transmitted on the GPIB. In

ant

reverse, if we w
we would locate "E" on the tab le, then
column heading (E = 4orC, binary XJOO). andthe

LSD row
would give us the setting for the 8
(Le

(E

=5. binary 01

.,

XIOOOIOI ).

ed to trigger on the character E,

01)

to

o. In addition,

note

. Putting them togethe r

D1

0 switches

um

the MSD

n

3-6

•

LSD

~

HH

BI~

BI

~

ASC

0 0000

I

2

3

y

S

6

1 0111

8

9

R

b

[

d

E

F

NUL

0001

SO
0010 STX
0011ET

EOT

01

00

0101 E
0110 A

,El

1000

'5

1

001

HT

1010

LF

tot t

VT

11

00 FF FS

1101

CR

1110

SO

1111 SI US

o OR 8

XOOO

II ,"OTE I AS

H

GTl

X D

SOC
NOPPC
CK

G

ET

TCT

Table 3.3 .

I

OR

g

X

OOl

CII

~ O

D

LE

OC

I LlO I MLA I

DC'

C3

OC

.

OCl
PPU

NAK
SYN

ET

'

CAN S

EM

SP
SU,
ESC

GS

RS

2ORA 3ORb 4

TE

I AS

CII

SP

..

#

,

•

•

·

PE

I

D

I

·

•

I MLA 15 I

NOTE 1: BUS INTERFA CE MESSAGES I F ATN ISTRUE.

488

Analyzer AS

XOIO XO

~(JH

I

MLA 0

MLA 2
MLA J
MLA 4
MLA S

MLA 6
MLA 1 7
MLA B
MLA 9 9 MLA 25 I MTA 9 Y

MLA IO
MLA 11
MLA 12
MLA13
MLA 14

ll

ASCII

~

OTE

0 MLA 16 ~ MTA 0

1 MLA 17

,

MLA IB

3 MLA 19 C MTA 3 5

MLA 20 0 MTA 4 T

•

S MLA 21 E MTA 5 U MTA 2 1

MLA22

6

MLA2J
MLA24

e

MLA26 J

•

MLA21

•

c

MLA2B L MTA

MLA 29

·

MLA 30 N

>

UNl

CII

Codes

OR

[ 5

Xl00 XIOl X110 X1 11

I

ASCII

~OTE

I

A

M1A 1

,

MTA

:<'

F MTA 6
G MTA 1
H MTA B X

MTA10

K MTA l1

M

0

I:<'
MTA1 3
MTA1 4 A
MTA 15

OR

d 6 OR E

ASC

II

~ O TE

I ASCII

P

MTA 16

Q

MTA

R

MTAIB
MTA19
MTA20

M

TA22

V

MTA2J

W

MTA2
MTA25

Z MT

[

MTA 21 k

,

MTA2B I I

)

M

TA29

MTAJO n

UNT

I1

A26

·

•

b

c

d

•

I

4

h

;

i

m

0

~

OH I

AS

q

,

,

,

u

,

w

•

,

-

DEl

,

CII

OR

~ O

F

TE

I

3.5 OP ERATIO N DESCRIPTIONS .

3.5.1 There are 3 basic modesofoperatio n. T R1
SfS and PASSIVE. These

3.5.2 Trace

Rec

ord

s bus transactions JI high speed

vi

ewing the rec

conjunction

the

aualy

zcr will

::I

.

b.

~Iode

anted

with

ME\

perf

TRACE

the T RIGGER
pane l switches. When the search is comple ted
and data reco rded, AKM is

TRA(,E -U1~/l)OWN;

me

the reco rded values

MEM

location

sequence can be
quir

-ARM: The analyzer will search

mory

is displayed in HEX digi ts along wit h

ORY

of

ed.

art

described below:

:

and

tran sactions. When

IORY.ARM

orm

as follows:

CO~

LOCATI

and STEP functions.

D1T

IO!"

A da ta by te cap

of

ATN.

ON sh

operat

that is set on the

turnedOFF

tur

SRQ

and EOI.

ows

the

the recorded data. TIle data

stepped

up o rdown as re-

relative

\CE.

all

ows

ed in

ed in

,

\

for

.

c.

TRACE-STEP; When 51 EP is activated
during the search period, the search stops and
the balance
with zeros. (Note; the bus hand shake is
sto pped while

3.5.3 PASSIVE:

Middle po

:I.

Display exhibits the bus on a sampled basis

(ap

prox

ima tely :20ttmcs/scc.j. MEM

L

OCATION

isbeing displayed rathe r than memory.

of

mem

STEPis held d

sition

s

how

on

3-B

ory

locati

ons

are filled

own)

.

the

TRA

CE-S/S Switch.

OR

Y

s db to indicate the data bus

3.5.4 S/S (Single Step ):

0

11

The display shows the bus
MEM

ORY LOCATION shows the data bus (db) being

a sampled basis.

displayed. When operated in conjunctio n with ARM
and STEI) functions. the an

aly

zer will perform as

follows:

a. S/5-A RM: The

ana

lyzer handshakes bus
transaction at high speed unti l the TR IGGER
WORD is recognized. While the searc h is in
progress the ARM indicator is displayed.

ARMing allows the user 10 "fast forwa

rd"

when in single step.

b. S/S·STEP: The bus is allowed to advance one

hand shake each time STEP is act ivated and
released. If a search is in
abort

it.

I. ANRS: The Acc

ept

or NotReady State

pro

gress, STEP will

isactivated when STEP switch is engaged.

2. ACDS: The Accept Data State is entere d
when the ARM

·ST

EP switch is in the

center position.

ent

3.5.5 Abridged operation instructions pres
Table 3.4 are placed on the bo

easy r

ef

erence. This table shows the main operating

tt

om of the analyzer for

ed in

modes, which can be used as a guide after becoming
familiar with material in this manua l.

3-9

r

Table 3.4 • Abridged Operation Instructions

MODE

T,ee.

ISlorage 01

in memorvl

p

o

..

Sinvle

eventt

,

ln

Step

Stop on Trigger

TRACE-S/S SWITCH SETTING OPERATING INSTRUCTIONS

St'

llr;gger

Set switch to TRACE

Set switch 10 mid position 1.

1.
Select

2.

U5eARMposition to arm analyzer.

3.

Wail for trace 10

••

Reulll1

5.

All

Ob$«v

2.

SIt IWitch to SfS 1. Use STEP

Sellwit

chtoSIS

1. Set

Use ARM position to¥mitI,IYllIf.

2.

3. Wait ' Of tr;qget' lARM indicatOf offl.
u se STEP po$,tion 10 advance bu stu,"ic

••

condition.

memory

othe

l bus Ir

' figgef condItion .

()n~d

r swile

position

trigger

com

data

hn

.fficon

position

plete (ARM indiClltOf

using UP-DOWN switch.

ere 'nactive.

displa y.

10 lIdvance bu s

1ST

ART

tr.

ltic..

-mid ·ENDI ,

off)

.

.

3.6 CONNEcnONS.

3.6. 1 Indication of thevarious test points contained

on the rear connector is shown in Table 3.5. The pin

designation o f this standard GPIB connector is shown

in Figure 2. 1.

Table 3.5 . Test Point Assignment

A

SS

TEST

POINTS

IGNMENT GPIB-

NUMBERS

PI

N

TPI

Common 12

.18·24

TP2 Dl0 5 13
TP3 DI0 6 14

TP4 DI

07

IS

TI'5 Dl0 8 16
TP6
TP7
TP8 Dl
TI'9
TPIO EOI
TPI I DAV

DlO

I I

Dl0

2 2

03

Dl0 4 4

3

5

6
TPI2 NRFD 7
TPI 3 NDAC
TPI4

SRQ 10
TPI 5 ATN
TP

I6

IFC 9

TPI 7 REN

I8

TP

\

TRTG

8

11

17

N/A

3.7 APPLICATION EXAMPLES.

NOTE

The instructions provided assume that power

switch

is

is ON and that the anatyz

normal.

er

operation

3-11

3.7.1 MLA7 (My Listen

Addr

ess 7) Trace Mode

EXAMPLE

This is an

was

senttolisten address 7.

I.

3.

I:

example

The

mode

TRACE
data

With trigger position set to

ger condition

The

follows.

The

tocorre
MLA7 for My Listen Address 7). Look for
MLA7 in Table 3.3 .
switches sh
appears in a column

I indicates ATN should be set

means the ATN trigger
should
CONDITION switches
don't

purpose
triggering on the GPIB Iden tify

occurs

one.

is used to re

.

rest o f

TR

IGGER CONDITION switches arc set

be set to I.

care

whcn bo th ATN

The switches

of

of

memory

spond

ould

(X)

of

setting

howtorecord

operation

cord

a ppears at

is filled with

to listen

The

be set

and EOI is

to

that

The

and

EOI

shouldappearasshown.

is set

and

the

addres

table

and view

to

view rec

START

start

of m

s 7 <called

showsthe

what

TRACE

orded

. the trig-

emo

ry.

data

that

1)10

XOIOOIII. MLA7

says

NOTEI.Note

true.Thi

condition

remainingTRIGGER

SRQ

set

to zero.

to

zero is

and

EOI are set to

switch

are set

The

to

avoid

state.Thi

.

s

to

s

4. TIle analyzcr is ARMed by activating and
releasing the ARM swi tch. The ARM lndi­ca

tor

will co me on while the analyzer is

searchi ng for theTRI

rec

ordi

ng the da ta. This may be a very b rief

ti

rneif

there is mu ch activity on MLA7. After

the

data

is recorded,

as

shown

.

3-12

GGER

CONDITION and

the

display will appear

Trace : Example I

RACAL·DANA 4

,-,,-,1

uuL

.....

0 ."

..

OC.,,"'"

TRIGGER

I

,

•

t§

0

P

OWER

ON

x

A T '" S

• • •

§x

~x

RO

88

GPle

ANAL.

I

I

0."

CO"'O

0'

0

§x

§x

TRACE

'

0'

YZE

~

ITI

O'"

~x

M EMOR Y

(

I

START

R

QID

a

~

(

....

0 I

~

,

x

~

UP

I

,

§~

, 0

I

'R"

3-13

§

.is

§

END

§

oa.v".

§

stee

§

~

x§

,

0 "

x§

3.7.2

EXAMPLE 2:

MTAI7

( My Talk Address 17) Trace Mode.

This is an example of how to record and view what

is sent from TALKER address 17, and to view the
sequence which the controller used to add ress the

T

ALK

ER.

3.7.2.1 With switches set up as show n, the trigger
condition corresponds 10 MTA 17.

3.7.2.2 Momentarily engage the ARM switch. AR

t\.

indicator comes ON.

3.7.2.3 Data is recorded in the first half of memory
until the trigger condi tio n is met. Th e trigger word is

ct

stored at location 19 and the next 20 transa

of

recorded in the last half

memory. After th is is

ions are

accomplished the ARM goes OF F. The d isplay shows

MEMORY LOCATION 19 and DATA 5 1. Thi s

dat

corresponds to MTA 17.

3.7.2.4 Transaction s before the trigger condition are
recorded in memory locations 00 to 18. Transactions
after the trigger condi tio n are recorded in locations 20
to 39. These are viewed by the use of the UP/DOWN
switch.

1

a

3-14

Trace: Example 2

RACAL

-DANA

In'-

1-1_'

MEMOR Y

LOCATION

I

,

a

~§

o

488 GPlSANA

DATA

s

LYZE

A

•

S/

S ENDClONN STEP

3-15

3.7.3 Bus Hang-up, Trace Mode.

EXAMPLE 3:

3.7.3.1 Set-up trigger condition to a value that will

not

occu r during yo ur operationofthe bus. For example,

if no parallel poll exists in the system (EOI and ATN
asserted), set the switches as shown. Note that the
START/END switch is set to END. Thi s is done so
that the largest number
in memory

(39).

of

transactions will be saved

3.7.3.2 Mom entarily engage the ARMswitch. ARM

indicator comes ON.

3.7.3.3 Allow the syste m to hang lip.

Stop

3.7.3.4

recording by engaging STEP switch and

releasing it. The display shou ld show MEMORY

LOCATION 39 and DATA 00. Memory locations 00
to 38 hold the

39

steps that lead up to the bus hang up.

3.7.3.5 View the recorded transactions with the UP/

DOWN switches. The last recorded transaction will be
in location 38. The one before that will be in location

37, etc.

3-16

Trace: Example 3

RACAl

-I

MEMOAY

LOCATION

I

•

x

m

c ,

POWE

A

ON AT N

-DANA 4 88

ti

t:

rir:

-lU

TRIGGER

-r s

§x

§x

,

t

'Ra

DATA

§x

aor

GPIS

ANALYZER

Ll

CONDIT

000

,

•

§x§x§

, , ,

,

I

TRACE

c:ill:J

ION

3

M E M OR V

(

START

~

I

~D

.~

I

I

, ,

§~

x

, 0

I

UP ARM

x§

§

•

§

0 "

, , ,

x§

3-17

§

5>.

§

END

§ §

lX:MiN

sr

ee

3.7.4 Hardware

EXAMP LE 4:

This

examp

checking

out

/Int

erface Bus Checko ut , Pas.sIve

le shows how to view bus lines while

the hardware for a new interface.

3.7.4.1 Place the analyze r in Passive mode by moving

the

TR

ACE-S/S switch to the middle position.

I\OTE

None

of

the

other

switches have any effect in

PASSIVE mode.

3.7.4.1 When the hardware checking

face is told

to

assert DA V. the lJA V indicator on the

out

the inter-

display should come ON. All GPIS lines can be directly

viewed when in the Passive mod e.

3-18

Passive Example 4

RACAL·OANA

,

I_I

-I

_/U

MEMORY

LClCATION

I

,

•

x

x§

ON

ER

§

ATN

SRQ

m

0

POW

488GP'S

till

1/

__

DATA

TRI

GGER

e e

x§ x§

'0'

ANALYZER

I

CONDITI

0'

0

,

I r

TRACE

ON

a

x§

MEMORY

STAR

x§

T UP

UEl

,

x

ARM

I

,

§;

I

,

0

§

0 "

§x§x§

3-19

§

",

§ §

END

OOtt'VN

§

""

3.7.5 Instrum

EXA

MPLE 5:

ent

Character Review, 5/5.

This example sho ws how to view an ins

trum

ent'

react ion to different characters on a step by step basis.

3.7.5.1 Some instruments react directly to commands,

others might requ ire a terminator such as carriage

re--

turn or line feed.

3.7.5.2 To sec this cond itio n displayed , set the

analyzc r in S/S. Program the

co

ntroller to send com-

mands to the instrument. Single step the bus using the

STEP switch on the aualyzer.

3.7.5.3 The instrument's reaction to the different
characters can be observed on a step by step basis.

s

3·20

3.7.6 High Speed to Single Data Viewing. 5/5.

EXAMPl.E 6:

This example shows how to move past a large
inf

orm

ation quickly and then view a particular group

of

dat

a by single ste pping.

3.7.6.1 Place the ana lyzer in

CONDITION to the

data

5/5. Set the TR IGGER

where the single stepping is to

body

of

continue. This might be LISTEN addrcss MLA4 as
shown.

3.7.6.2 Momentarily engage the ARM switch. The
ARM indicator will come on while analyzer is searching
for the trigger condition. When the ARM

indicator

goes

off. the ana lyzer will have found the trigger word and

be read y to single ste p from that point forward.

3-22

5/5: Example 6

RACAL-

UClL

MEMORY DATA

LOCATION

I

,

,

;§

x

0

POWER

ON

DANA

/1

T RIG

-r

s

§

x~

,R

"N

488

GP IB

_ILl

GER

0<0

,

0

x

§x§

O

'

01

ANALYZER

~

I

CO NOI

TlO

•

0

I r

TRACE

N

a

x x

§

,

MEMORY

START UP

[EO

~

1

-':

, ,

0

x

§

1

I

o ,

§~

I

ARM

§

OH

~

x§

x§

§ §

'"

3-23

§

EN D OCM'N

§

"'''

U,S,REPRESENTATIVES

RACAL

ALABA

o.lA

500"-,

A_..,...

P. O .

80_

Mob".,Al.

(BOO)321

ARIZONA

I'L.S A.

..

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001

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su..

~

61

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16

021219

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833

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CONNES

S..M_h..MII.

DELAWAHI

R_c. -Ce .. . InsH ,,,,,

16

091

853-1605

A

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231

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REPAIR REQUEST FORM

To allo w us 10

following outline and include a co py with you r inst rumen t to be sent to

local Racal-Dana re pair facility.

Model Number _

Serial Numbe r _

Company Name _

Address _

Cily _

Cont act _

I. Describe, in de

2.Ifyou are usin,your unit on the bus, please list the program strings used and the con troller
type , If possible.

bette

r underSland yo ur repair reques ts, we suggest you use the

tait.tb

e problem and sym

your

Options _

Oate _

P. o .#

State _

Phone Number _

ptoms

you are having.

l ip Code _

J. List all inpu t level. , and freque ncies this failure occ urs.

4. Indicate any repair wo rk previously performed .

S. Please give any additional inf

faster repair lime. (I . E., mod ifications, et c.)

or

mation you feel would be beneficial in facilitating a