SECTION 2
Getting Started
2.4 BASIC IEEE-488 OPERATION
The following information outlines the basic procedures
to use the Model 486/487 over the IEEE488 bus. An ab-
breviated summary of commands necessary for basic op-
eration is shown in Table 2-1. Simple controIler programs
thatcanbeused tosendthesecommand.sarelistedinAp-
pendix D of this manual.
Before attempting to operate the inshument, perform the
following steps:
3,
1.
2.
With the power off, connect the Model 486/487 to
the IEEE-488 bus of the controller. A shielded
IEEE-488 cable such as the Keithley Model 7007 is
recommended.
Verify that the rear panel line voltage switch is in the
correct position for the power line voltage in your
area. Connect the in.9troment to an appropriate
power source using the supplied line cord, then turn
on the power by pressing in the front panel POWER
switch.
WARNING
Use only a grounded ac outlet to avoid a pos-
sible shock hazard.
4.
CAUTION
operating the instrument on an incorrect
line voltage may cause damage to the ins&u-
NOTE
If the tiont panel display should appear to be
inoperative, try pressing the DISPLAY II+
TFNSITY kev once or twice to restore the dis-
play to non&l intensity.
Verify that the programmed primary address dis-
played on power-up is the same as the one you in-
tend to specify in your program statements. For ex-
ample, if the instnunent is currently set for an ad-
dress of 22, the following message wiIl be briefly dis-
played on power-up.
IEEE-488
ADDR 22
If you desire to change the primary address of the in-
strument, you can do so as follows:
A. Press and release MENU untiI the IEEE-488 ad-
dress is displayed.
B. Use the rotary knob (or the4 or, key) to display
the desired address (O-30).
C. With the desired address displayed, press
MENU to save it.
D. Press SHIFT and then EXIT to return to normal
operation.
2-9
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