Racal-Dana 488 User manual

;
PRELIMINARY
OPERATORS MANUAL
MODEL
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GPIB ANALYZER
RACAL-OANA

PUBLICATION NO. 980551
PRELIMINARY
OPERATORS MANUAL
MODEL
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c:=:Jc:=:J
GPIB ANALYZER
RACAL-DANA
RACAL -DANA INSTRUMENTS INC.
18912 Van Karman Ave., trvine , CA 927 15
Telephone:[phone]. lWX ;910-595-1136. TLX. 67-8341
RACAL ·DANA INSTRUMENTS LTD.
Duke Street.Windsor . Berkshire SL4 1$8, United Kingdom
Telephone: Windsor 1075351 69811, TLX :847013
RACAL ·DANA INSTRUMENTS S.A.
18 Avenue Dutartre, 78150 Le Oesoev . France
Telephone: 13J 955-8888. TL X: 697215
RACAL ·DANA INSTRUMENTS. LTD ., DEUTSCHLAND
Herrreonstre sse 29. 0·6078 Neu lsenburg. Federal Republic of Germany
Telephone: 0 610 2·286112.TLX: 412896
PUBLICATION DATE: JULY 1981
Copvrig ht@198 1 by Recat-Dana Instruments, Inc.
Printed in the United S tates of America. All rights reserved.
This bo ok or part s ther eof may n ot be reproduced in any for m
with out wr itten permi ssion at the publishers.

WARRANTY
Within one year of purchase. Racal-Dana will repair or replace your
instrument, at our opt ion, if in any way it is defective in mate rial or
workmanship. All parts and labor charges will be paid by Racal-Dana
Instruments.
Just call Racal-Dana Product Service at [phone]
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 the
proper shipping address for you r prepaid shipment. Your instrument
will be returned 10 you freight prepaid.
PROPRIETARY NOTICE
This document and the technical data herein disclosed. are proprietary
10 Racal-Dana Instruments. tnc.. and shall not , without express wr itt en
permission of Racal-Dana Instruments, lnc., be used, in whole or in
part to solicit quotations from a compe titive source or used for manu-
facture by a
nyo ne ot her than Racal-Dana Instruments, Inc. The infor -
mation herein has been developed at private
expe nse, and may only be
used for operation and maintenance reference purposes
or for purposes
of engineering evaluation and incorporation
into technical specifl- •
cations and o ther do cum ent s which specify procurement of prod ucts
from Racal-Dana Instruments, Inc.
•

TABLE OF CONTENTS
Section
Specificati ons
Title Page
vii
SE Cf ION I GENE RAL DES CR IPT ION . I-I
1.1 Purpose \-)
1.2 Scope . \- 1
1.3 Pro duct Suppor t . 1-1
1.4 Electrical Description 1-~
1.5 Mechanical Description 1-3
SECTION 2 INSTALLAn ON . 2-1
2.1
~ .2
~.3
2.4
2.5
2.6
Purpose . . .
Unp acking and Inspection
Shippi ng Container Requirements
Init ial Preparation
B att ery Installation .
GPIB Cab le A tt achment
2
-1
2-1
2
-1
2-2
'- ,
2-3
-.
SECf ION 3 OPERATION
3.1 Introdu ct ion
3.2 Preliminary Ins tructi ons
3.3 Con trol and Indicators
3.4 Triggering and Display of Data
3.5 Operation Descriptions
3.5. 2 Trace Mode
3.5.3 Passive . .
3.5.4 S/S (Single Step) .
3.6 Connectio
ns.
3.7 Example Applications .
3.7.1 MLA7 (My Listen Addr ess 7)
3.7. 2 MTA I7 (My Talk Ad dr ess 17) .
3.7.3 Bus Hang-Up ..
3.7 .4 Hardware/Int erf ace Bus Che ckout
3.7.5 In strum e nt /Int erf ace Bus Check Out
3.7.6 High Speed to Single Data Viewing
v
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

LIST OF ILLUSTRATIONS
1.1 Dimensional Outline
:'!.l GPIBConnector ...
3.1 Analyzer Control location
3 .::! l e D Display Exhibits . .
Figure
Table
Title
LIST OF TABLES
Title
Page
1-4
2-3
3-2
3-4
Page
3. 1 Analyzer Control Description 3-3
3.2 Panel Con
tro ls Description . 3-4
3.3 Analyzer ASCII Codes . . . 3-7
3.4 Abridged
Operat ion Instructions . 3-10
3.5 488 Test Point Assignment . . . 3-11
VI

SPECIFICATIONS
GENE RAL DESCRIPTiON
The GPIB Bus Analyzer is a b att ery powered
instrument which can trace, single-step or s
top 0 11
a trigg er word.
It c ont ains a 40 x 1I bit memory.
GENERAL SPECIFICATIONS
Power Req uirements Fou r alkaline C T yp e cells,
7.0 - 4.5 volt s, 200 mW
ma ximum
Weight 2 Ibs. with ba tte ries
Dim ensions W idth : 6" (I 52.4mm)
Length : 9-1/ 4" (234.9 mm)
Height : 3-1/2" (88.9 mm)
Warran ty Standard w arr anty statement:
Exhibit inside fro
nt page.
T
emp erature Range
O
perat ing osc to + 55°C
Storage - 55 to +75°C
Humidit yoDe to 25
°C
95% RII
25°C to 40°C 75% RH
40°C to 7SoC 45% RH
ELECTRICAL SPECIFICATIONS
Low Battery At 4.5 10.25 Volts
Annu nciator an nun ci ator t urn sON.
Lo,d Meets IEEE-STD-488-1978
DC load requiremen ts
Driver In a ccor dance with IEEE-STD-
488-1978 Driver Specification
for NRFD and ND AC
vii

SPECIFICATIONS Conti nued
ELECTRICAL Continued
Handshake Speed 100 K bytes/sec. typical
or single s
tep
Trigger Points 3 points: STA RT (00 ).
MIDDLE (19), or ENIl (39 )
FUNCT IONAL SPECIF ICAT IONS
Trace
Rec or ds f rom Gr lB
Passive Displays the status of the GPIB
S/S Single ste ps
or sto ps th e GPIB
Mem or yRecords 0 10 bits, ATN. SRQ
and EOl word - 40 words
deep
Trigger Triggers on bits
Dial through
DlOS, ATN,
SRQ and EOI
with comb inat ions of 0, I or
X. (X =Don 't care)
IlISPLAY SPECIFICATIONS
Type LCD (Liqu id Crystal Display)
Data 2 Hexadecimal
(00 th rough FF )
Mem
or yLocation 2 Decimal digits
(0 to 39 ) or
symbol db (d
at a bus)
GPIB Annunci ators ATN NRFD
SRQ NDAC
EOI REN
DAV IFC
Instru
ment Sta tus ARM
Battery Condition LO BAT
viii
•

SECTION 1
GENERAL DESCRIPTION
1.\ PURPOSE
1.1.1 Racal-Dana Instruments prepared this Instruc-
tion Manu al for the Model 4 88 CP IB An aly zer. The
manua lprovides the user with the operating pro c edu res
nece ssary to empl
oy the f eatures designed into the instru-
m
ent. Also, the manual presents the m aint en ance
proc
edu res required by technical pe ople to obtain tilt.'
ma ximum pe rf orm ance specified by Racal-Dana in the
pub lished specifica tions. It is rec omm ended that the
users
and technicians read this manu al before operating
the in
str ument.
1.2 SCOPE
1.2. 1 The In stru ctio n M anual pres ent s th e informa-
tion for the M
odel 488 GPIB Anal yzcr in a fun ctio nal
seque nce. sta rting wit h the
Oper ato r's sec tio ns one
through
thr ee and continuing with the Main tenance
sections fou r
thro ugh seven. The sec tio ns in the manual
include : Genera l Desc
rip tion , Installation. Op er ation .
Maintenance, Drawi ngs, anti Parts List.
1.3 PRODUCT SUPPORT
1.3. 1 Racal-Dana Ins tru ments mai nt ains a complete
Engineering Labo
rat ory, fi eld Engineers, Service Depart-
mcn t and Parts Department to sup
port the produ ct
commitment. furt her suppo rt is provided by a n et work
of Field Represen tatives and Area Service Ce nters with
service personnel available for consultation. The com-
pl
et e list appears on the last two pages of the manual.
Th e war ranty p ro gr am declarati on is presented in the
forward sectio n o f this man ual.
•
I-I

1.4 ELECT RICAL DES CRIPTiON
1.4. 1 The Model 488 GPIB Analyzer is designed
specifically 10 monitor and service abnorma lities in
I E E E · S t a n d a r d ~ 4 8 8 -1 9 7 8 Gene ral Purpose Interface Bus
<GP1Bl systems. The an alyzcr can be easily con nec ted
into any GP IB system (stack connecto r) for transparent
analysis of the bus data.
104 .2 The analyzer features three operating modes: •
a. TRACE Mode;
data is cap tured. stored in
memory. and later displayed for ana lysis. •
b. PASSIVE Mode: presents the bus transactions
in real time on the display.
c. S/5 (Single Step) Mode: allows bus tra ns-
actions to be stopped or single-step.
These modes are enhanced w ith ARJ\. I /STE I' and
START /EN D switc hes which increase flexibility by
provid ing variat ions of the basic operation.
1.4.3 The user is provided with t hree categ o ries o f
data from the L eD (Ilquid-crystal-display Ito visually
inter pret the bus data:
a. Memory Locat ion displays s tored data loca-
tions in decimals digits 00 to 39. The display
exhibits db (d ata bus) when directly viewing
the bus.
b. Data displ ays one
of the 40 hexadecimal dat a
bytes in m
emor y or can display data from the
bus.
c. Bus line sta tus indicators plus two analyzer
status indicators. in addition to low b
att ery
and arm are also provided.
1-2

1.4.4 The user can observe signals with short dura-
tion that are expanded with special pulse stretching
circuits. The REN line is at logic one (O .8Y) when the
REN annuncia
tor 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 /-IS or 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 battery 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 control switches for TRIGGER
condition, MEMORY and POWER on/
of f. The LCD
Memory Location and Data display with nine status
indicators are also located on the control panel.
1.5.2 The rear panel includes the GPIB connector
and the parallel test poi
nt (TP) terminals. The bo tto m
panel of the analyzer provides the battery pack access
d
oor and concise operating instru ctions.
1-3

SECTION 2
INSTALLATION
2.1 PURPOSE.
2.1.1 This section describes the suggested pro ce-
dures upon receiving a new in strum ent from Racal-
Dana. The sub jec ts include unpacking, packing, initial
preparation, ba
tte ry supply, and cables.
2.2 UNPACKING AND INSPECTION.
2.2. JPrior to unpacking the instrume nt, examine
the
exterior of the shipping carton for any signs of
damage (all irregularities should be n
ot ed on the shipping
bill). Carefully remove the in
strum ent from the ca rton's
packaging and inspect the instrurrent f or any signs of
dam age. Notify the carrier immediately if damage is
a pp aren t.
2.2.2 If
dam age to the unit is apparent or suspected,
a qualified person should bench check the unit im-
mediately. If findings are not satisfactory, a report to
the carrier must follow immediately.
2.3 SHIPPING CONTAINER REQUIREMENTS.
2.3.1 When shipping the in strument , the original
shipping carton with plastic dust cover will provide the
necessary protection. This carton should be preserved,
if it is possible.
2.3.2
available, When the original
shipp ing carton is
r eco nstruct the packaging to approach
2-1
not
the

protection designed into the original shipping carton as
listed next:
a. Wrap the unit in a plastic cover.
b. Spray the
bottom of asuitable carton with
plastic foam. Permit to expand.
c. Place the unit on the plastic foam in the
carton. about ccnter.
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
connec tor cable and the battery powersource
installed as described next.
2.5 BATTERY INSTALLATION.
2.5.1 The battery pack is accessible through the
screw-locked
battery cover on the bottom panel.
2.5.2 To install the batteries. turn the b att ery cover
retaining screw
coun terclockwise (CCW) unt il the cover
is freed from the case (the other end of the cover is
secured under the case).
::.5.3 Extend the
battery release s trap along the
bottom of the bat tery cage.
To release the batteries from the cage, pull
the release strap tab that
extends around the
last cell.
2-2

•
2.5.4 Install the cells over the battery release strap
so that the polarity markings on the cell match the
markings on the b
att 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 A IT ACHMENT.
:!.6.1 The analyzer is attached to a GPIB system
thru a 14-con ductor GPIB cable. Care must be taken
when making the connection to avoid using two different
screw threads. The type
of threads used are indicated
by the color of the bolt; black for metric, chrome for
non-metric. The analyzer uses the standard specified
metric thread. Racal-Dana part numbers for GPIB
cables are 406845 (I meter), and 406844 (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 20 19 18 17 16 15 14 13
Pin No. Assignment
I DI D I
2
DI D2
3 010 3
40
104
5
EO I
6DAV
7NRFD
8NDAC
9IFe
10 SRQ
11 ATN
12 SHIELD
Pin No. Assignm
ent
I3 0 10 5
14 010 6
15
DI D7
16
DI D8
17 REN
18 CND
,( 6)
19 CND
,( 7)
20 CN
D,( 8)
21 CND
,(9)
22 CND, (ID)
23 CND
,(II)
24 GND, lOG IC
Figure 2.J-GPlB Connector
2-3

SECTION 3
OPERATION
3.1 INTRODUCTION.
3. 1, 1 This section con ta ins operating instructions
for the analyzer. The information contains illu
str ations
of panel co ntro ls, indicators and connectors along with
a tabular listing
of the function and purpose for each.
Operating instructions for the analyzer are presented in
two ways; a description of each ope rating featu re fol-
lowed. where necessary. with a step-by-s
tep operating
example. Some operating features or functions are
simple one or two step
op erations and thus no examples
arc included.
3. I.:! The analyzer operates in the IEEE- STl >-488-
1978 bus environment; ther ef ore. this section will
describe the operation procedures of the ana lyzer and
will review the basics of GPIB in sub-sections 3.8.
3.2 PRELIMINARY INSTRUCTIONS.
3.2.1 Before operating the analyzer, it is recom-
mended that the user read this en tire section. then verify
that the batteries are installed correctly. Next, slide the
POWER switch to ON. This will activate the display,
indicating that the analyzer is rea
dy for opera tion.
3 .J CONTROL AND INDICATORS.
3.3. 1 There are basically 4 groups of controls. One
group establishes the mode of operation, (TRACE,
Passive, 5/5). A second
group includ es the ARM/
STEP switch. An
ot her grou p sets the TR IGGER CON-
IJITION (IlIOI through IJI0 8. ATN. SRQ. EO!).
3-1

Finally, one group is used to control memory (UP-
DO
WN .START-END). The location of each switch is
shown in Figure 3. 1. Each switch is described in Table
3. 1
RACAL ·DANA 488 GPIS ANAL YZER
~""",y
CA"
LOCA TION
TRI GGER COND IT IO N
I
0' 0I
•,6,•a,,
,,
;§x
§
x§x§ x§x§x§
x§;
00
P OWER
If
~E~ ORY
I
ON ATN SRQ ' 0 '
TRAa
STA RT UP ARM
§§x§
x§
§§§§
0 "
''"
END DOWN
sree
0000
Figure 3./ - Anaiyzer C ontrol Locatio"
3-1
•
•

•
Table 3.1 . Analyzer Control Description
,
•
•
In ...
T• .,m.d_
,
x
o
rtvn It
".
S lll'
\I t \t OR' -1\1"' ........ '
"
00 "- '
'IH \tOR' 'T """"
Slur
""'''
DJ se: RlrTIO~
..... hp ... 1 : MOll hUt J :
I
rh< 3 PN'_ u. lapul Oulput ,PIOI 1"""'P DIO!I' "'' SRQ lOl-"1
."" In .... OI\l llo lk . 11 '.11' ....... ".Iw> _O,\V ........ '10 .. ' ,,,.., •
. "ODd._ .. _.
T1lK 11 p<OUt_ •• ,--. .. \wtI."" ... It -..t.."w .. , Illctor
nu Id. pout"'" ~ ...... "' ...... I Of 0001 Ihl' ...f ............... -...
lltK " , _ k O '
'" 3 pc><oh.", '1.1' .Iu 1"" "of J....» ...
Th< TR\ , E """"" .. _ot ,0 ""onIlil1"""'" 'kGl'II ,It .... 'w'n'Iw ............. sn r
.t>on." riot _~ _~-..r ...ldo "t' " ...w4 10'_ IN I'ft'UIInl Jala
r h< • ..,." •• p<tw.l ... n pbo"" ,11 •• n.l, l<f MIIh<' p;l"'" mod. of <>pr'""'" T .... ~ .. plav """"' .
11 ...... 1•• .,. ,he (;rl B 11 ...... 1)/" Jon..." h.ln.I.tuk. III 'h ........ k" .. ,-.,."plt 'tly paw ••.
, .... S ~ ,~ ..... >td r~ ....po ,torlllr (, r iB AR\ 1 ... on It.. .uc, .." to ". , •• , 11,"1 fOf , ...
I R l<ol: ;J 11 ( ' O~llI I I O' SII r .. ,II....,n ~ .... '.h or <lIk> ... he bu' 10 p<o.:...,1i ono: ""ndw ~ •
n" J'OlI'Kln ,au .. ", Ih. an,I)/" '<> .U' I ... ,,-h,nl '01 Iho' lltl (;(;11t CO 'Il ITIO' ""tuk
,. :. " 1",,, . 11", ,,1\\1 IINJ . .. ,,,, .. <1" ",.,.<1 In I K'>' ( ~ . n,uJ. <1 ., ...... ,,"nl. d d.." ". Ih ..... . '.h,
In <; S .-o.J. Ih. h .n<l,'u ~c ".n" .. . d '" p "" · ... <I .1 h .th '1'«'<1 <lun'. ,t.. .... "h.
In S S .-00. 'Ik' (.PI8 •• 11 " .. ... 1<> """ ....... on. tu.nJoh. ~ •. In ru,n Of S S 1Il<llk ..... ... to
.. . ",,",-.1
,>, )J'O"I'K>n..... "" ..nl ....... ",10 .. ,'10 .....' .. -oIT S.. ,,<h .. onl) .., li ... III TItA {'E ..-l •.
1"" _, ...... _..: •• "" d"f'lol 0( , nu' .. ~,_ .. __ )
1 10 " po"""" •• n.... Ill, <I""",) u' ti P"''''t>tI'o l~n",.:"On III ........"Y
A .I powl_ .. , '''''' .... ~ ... 'ttdII ........... IO R'COni .. _-.0) l 1><' ..- ,,,,h ..
_l> .. In , 11\4 .. _ TkAt L ~
J<I' ....... '_' 1"'. '1><' l ..... ,0n,II ,_ .. ","",.kd
:0 lQItuo.-t __ ...- f_ """-I .~ __ I,.M

3.3.2 Indicators include MEMORY LOCATION,
DATA. and IQ individual indicat
or s. The display is
shown in Figure 3.2 and described in Table 3.2.
RACAL ·D ANA 488 GPl8 ANALYZER
12
MEMORY DATA
LOCATION
nI 11 _"_1
l O BAT
nn
/_ II
_1
Figure 3.2 - LCD Display Exhibits
Table 3.2 · Panel Controls Description
REFERENCE DESIGNATOR DESCRIPTION
ILO
BAT
Low B att ery status
indica
tor
2SRQ Service Request
status indica
tor
3ATN Att ention status
indicator
3-4

Table 3.2 - Panel Controls Description Continued
REFERENCE DESIG
NAT OR DESCRIPTION
4IFC Interface Clear
status indica to r
with pulse stretche r
5REN Remote Enable
Status in dic ator
with pulse stretcher
6
DAV
Data Valid status
indicator
7NRFD Not Ready For
Data status
indicator
8NDAC Not Data Accepted
status indicator
9
A R ~ I
Analyzer sta tus
indicator
10 1:01 End or Id
enti fy
status in
dicator
11
DATA ( OQ-FF )Data that is
rec
or ded du ring
a bus transaction
in flEX code. Real
time bus display
12 MEMORY Shows the relative
LOC ATI ON location of a re-
corded bus trans-
action or if the bus
is displayed directly
3-5

3.4 TRI GGERING AND DISPL AY OF DA TA .
3.4.1 Th e user servicing a bus with the analyzer
should refer to the list of int erf ace and program mes-
sages shown on the label attached underne
ath the unit
(Table 3.3). These bit patterns, normally ASCII encoded,
provide the user with specific trigger words that are
required when setting the TRIGGER CONDITION
switches.
3.4.2
The ASCII seven bit mode is the convention
used to transmit and receive data in GPIB instru ment
control systems. The LSD vertical row from 0 to F
(Hex) and the MSD top horizontal row 0 to 7 or 8 to F,
together list the letters, numbers, special characters and
control modes applicable to the GPIB (sce
examp le in
para. 3.4.3).
3.4.3 Table 3.3 allows easy transfer from Hex to
binary for se tt ing the TRIGGER CONDITION switches
and also to transfer from the data displayed to the
ASCII character on the GPIB.
Example:
Assume the data display reads 45. The MSD col
um n
4 or C represents the characters @ to o. In addition,
the LSD column indicates that row 5 lists the char-
ac ter E as the one being transmitted on the GPIB. In
reverse, if we w
ant ed to trigger on the character E,
we would locate " E" on the table, then
note the MSD
column heading (E =4 or C, binary XJ OO ). and th e
LSD row (E =5. binary 0 1 01) . Putting them together
would give us the setting for the 8
D1 0switches
(Le ., XI OO OIOI ).
3-6