Fluke 9640A Series, Instruction Manual

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9640A
Instruction Manual
4A-4
About the Bus Address
Each instrument in an IEEE 488 system requires a separate and unique address so the
controller can call and communicate with each instrument individually. These bus
addresses are numeric and are within the range of 0 to 30, inclusive. They are considered
primary addresses, and the user can assign any one of them to the Instrument.
Secondary addressing is not available on the Instrument. In other words, the source
cannot respond to any address outside the range of 0 to 30. When a controller addresses
the Instrument, it must also send data to define and instruct the Instrument as a talker or
listener.
Setting the Bus Address and Other Preferences
Use the following procedure to set the IEEE 488 bus address and other GPIB preferences:
1.
From the front panel press

to bring up the Instrument Setup screen.
2. Press the
GPIB Preferences
soft key to bring up the
GPIB Personality
screen.
ead32f.bmp
GPIB Personality Screen
Note
For instructions on setting setting parameters for a given GPIB personality,
refer to the relivant part of this chapter.
3. Use the cursor keys or spinwheel to select the 9640A. Then, select the
Edit Pref’s
soft key to bring up the
9640A GPIB Preferences
screen.
4. On the
9640A GPIB Preferences
screen (See Table 4A-1), select the
GPIB Address
field.
5. Enter the address (0 to 30) assigned to the Instrument. The default factory setting is
18.
6. Select the
Event Status Enable
field.
7. Enter the number of the
GPIB Event Status Register
.
8. Select the
Status Register Enable
field.
9. Enter the number of the
GPIB Status Register
.
10. Select the
Power On Status Clear
field and set a preference.
The
POSC
setting determines whether or not the Instrument powers up with the
PON
bit of the
Event Status Register
set.