Keithley 707 User Manual
MODEL 707
SWITCHING MATRIX
QUICK REFERENCE GUIDE
INTRODUCTION
This quick reference guide cOntai”S deScripfio”S Of Various
features and information concerning the operation of the
Model 707. Also included are programming examples using
“alio”S controllers.
01988, Keithley Instruments, 1°C.
Instruments Division
Document Number: 707-903-01 Rev. A
Cleveland. Ohio, U.S.A.
TABLE OF CONTENTS
SAFETYPRECAUTIONS ...................... 2
FRONT PANEL FAMlLlARlZATlON .............. 3
OlSPLAY MESSAGES,, ..................... 18
REAR PANEL FAM,L,ARlZATlON. .............. 20
,NSTALL,NG AND REMOVING CARDS .......... 25
MASTER,SLA”E SYSTEMS .................. 27
BASIC SWITCHING OPERATION. .............. 30
Selectins Make/Break and Break/Make Rows 31
Modifyilg a Relay Setup ............
storing Setup and Sending to Relays ...
IEEE-488 PROGRAMMING
Device-Dependent Commands ........
oata Formats .....................
Hit Key Commands ................
SRO Mask and Serial Poll Byte ........
staws Words. ....................
PROGRAMS ,.,..,......................
IBM PC/XT/AT with CEC PC < > 488
IBM PC,XT,AT with CEC PC< ,488 and ASYST
HP Mode, 9000 series 200,3OO.. 57
.............
SAFETY PRECAUTIONS
2. Inspect the connecting cables and test leads for possi~
ble wear, cracks, or breaks before each use.
3. For maximum safety. do not touch the test cables or any
iktrumenfs while power is applied to the circuit under
test. Turn off the power and discharge any capacitors
before connecting or disconnecting cables from rhe
InmiX car*.
5. Da not exceed the maximum allowable input of the
matrix cards. as defined in the specifications and operas
tion sections of their manual.
2
FRONT PANEL
FAMILIARIZATION
POWER
AC power switch turm the unit on or off,
3
CROSSPOINT DISPLAY GROUP
MEMORY--Displays a stared relay setup (from location
shown in MEMORY STEP field) on the crosspoint display
and lights the MEMORY indicator.
RELAYl~Oisplays the current relay setup an the crosspoint
display and lights the RELAYS indicator.
CROSSPOINT DISPLAY MODIFIED-Lights when changes
are made to the crosspaint display (by front panel keys or
light pen), making if different from the original configuration.
COPY DISPLAY--MEMORY--Capies the displayed crosspoint configuration to the location shown in the MEMORY
STEP field.
4
COPY DISPLAY-RELAYS-Copies the displayed crosspoint
configuration to the relays.
AUTOMATIC (COPY DISPLAY--RELAYS)-When this LED
is lit. any change to the crosspoint display is sent to the
relays at the same time. The pushbutton toggles the LED
on and off. ITo affect chanae in memarv, displav must be
copied to memory.~
SCROLL GROUP
SCROLL A-If MEMORY indicator is lit, increments
MEMORY STEP field and displays setup on crosspoint LEDs.
If RELAYS indicator is lit. increments RELAY STEP field,
displays setup on crosspoint LEDs, and sends setup to
relays. Also used for scrolling up through a list of multiple
choice parameters.
SCROLL .-Same actions as the SCROLL A key except
that if decrements and SCrdS down.
INSERT-Inserts a blank serup at the location shown in the
MEMORY STEP Field. Moves higher stored setups up one
memory location.
DELETE-Deletes the setup at the locafion shown in the
MEMORY STEP field. Moves higher stored setups down one
memory location.
MENU
r
MEN”
00
0
I
Message
I
Item Description
view digital input. program
digital output.
EXT TRIG FALL
EXT TRIG RISE
Select which edge of external
trigger pulse triggers Model 707
(falling or rising).
MATRIX RDY LO
MATRIX RDY HI
STANDALONE
MASTER
IEEE-488 nn
HWSETL nnn mS
Select matrix ready output level
(active LO or HI).
Select stand-alone OI master,
~l.we operation.
Program IEEE-488 bus address.
View longest relay Ihardware)
settling time of cards in system.
n cccc
View slot number Ini and card
label tcccc,.
SELF TEST
FACTORY NIT
EYeCUte Self test.
Return to factory defaults. ,All
stored SetUpS a,0 cleared.,
Programmable parameters can be changed with the
SCROLL or data entry keys and then pressing ENTER.
I
7
SETTLING TIME-Displays the current value of programmed
settling time. (This delay begins after the relay seftling time.1
To change the value. enter between 0.65000msec and press
ENTER.
MAKE/BREAK-Selects rows to operate as make/break
(make-before-break) for all setups. First enter row desigrw
fion IA-H), then press MAKE/BREAK fo roggle the state for
that row and immediately reprogram the Model 707 for the
new operation.
BREAK/MAKE-Same action 8s MAKE/BREAK except that
it selects break/make (break-before-make) rows. ISelecting
a row for break/make de-selects it for make/break and vice
versa.)
8
LOCAL
When in remote WEMOTE on). return the Model 707 to local
made (REMOTE off). If restores operation of other front
panel ~onfrols unless LLO llocal Lockout) is in effect
TRIGGER GROUP
ENABLE-Toggles between triggers enabled and triggers
disabled. When triggers are enabled. the LED is lit.
SOURCEPDisplays current trigger source. Use SCROLL
keys 20 display sources, then press ENTER to select the
desired source:
TRIG ON TALK
TRIG ON GET
TRIG ON X
TRlG ON EXT
TRIG ON KEY
MANUAL-Generates a trigger from front panel if triggers
are enabled (no matter which trigger source is selectedl.
If the trigger source is TRIG ON KEY. only the MANUAL
key generates a trigger
IEEE-488 talk command
- IEEE-488 GET command
- IEEE-488 X command
- External trigger pulse (rear panel
input)
-Front panel MANUAL key only
DATA ENTRY
ASH, O-S-These keys are for entering row/column addresses
and setup locations, selecting make/break and break/make
rows, and entering various numeric values.
CANCEL-If the value in the alphanumeric display has been
modified, this key restores the currenf parameter value. If
the velue in the alphanumeric display has not been modified,
this key returns the Model 707 to the previous display.
CANCEL also exits from menu mode if no changes have
been made.
ENTER-If the value in the alphanumeric display has been
modified, pressing this key stores the parameter value. Also
invokes immediate action items from the menu and exits
menu mode (except when digital 110 is displaYedI
RESET
LI:
Performs the same functions as cycling power Call relays
are opened. triggers are disabled. RELAY STEP to 000,
MEMORY STEP fo 001, etc.). except powerup self-checking
and masterislave loop initieliration.
CLEAR, OPEN, CLOSE
CLEAR--Turns Off a,, crosspoint display LEO% If the
AUTOMATIC ICOPY DISPLAY--RELAYS) indicator is lip. all
relays are opened immediately.
OPEN -Turns off ~rcmpoint LED of row,column shown on
alphanumeric display. If the AUTOMATIC (COPY DISPLAYRELAYSI indicator is lit. the corresponding relay opens
immediately
CLOSE~Same action as OPEN key except that it turns on
the crosspoint LED and relay.
ALPHANUMERIC DISPLAY
pziizzs
A Wcharacter display that can show:
. Error messages.
l Menu item selections.
. Last setup sent from memory to the relays (RELAY STEP
field,.
IEEE-488 STATUS INDICATORS
These three LED indicators apply to instrument operation
over the IEEE-488 bus. The TALK and LISTEN indicators
show when fhe unit has been addressed to talk or listen.
REMOTE turns on to show when the unit is in the IEEE-488
remote State.
CROSSPOINT DISPLAY LEDs
Show open and closed crosspoinrs of the CUllem relay
setup, a stored relay setup, or an edited relay setup. Each
LED block of 8 rows by 12 columns shows on/off states
of one card. States can be changed by front panel keys. triggers. or optional light pen. Crosspoint configurations can
be stared in memory or sent to relays.
MAKE/BREAK and BREAK/MAKE LEDs
MAKE/BREAK ROW LEDs-Shows which rows are selected
for mskeelbreak operation. The LEDs can be turned on or
off by the MAKE/BREAK. BREAK/MAKE keys or an o,,tional
light pen.
BREAK/MAKE ROW LED*-Same function as MAKE,
BREAK row LEDs except for showing which rows are
selected for break/make operstion. Note thaf selecting a ,a.,
for break/make de-selects it for make/break and vice versa.
16
Loading...