Specifications

To Set the HP-IB
Address
From the Front Panel
From the HP-IB Bus
From the HP-IB
Address Switch
Warning
The HP-IB address is used in remote programming to identify the
instrument. The decimal address is preset at the factory to 18 (ASCII
2R). Addresses may be decimal 0 through 30. The HP-IB address can
be changed manually from the instrument’s front panel, remotely via
the HP-IB bus, or by setting the instrument’s internal address switch.
The internal address switch is comprised of five switches located
on the Al5 controller assembly in the RF section. These switches
(A15SWl A2
-
A6) determine the HP-IB address to be used at
instrument “power-up.” These switches are preset at the factory to
binary 11111 (decimal
31),
which sets the instrument to the HP-IB
address stored in RAM memory (or to the default value 18, if the
contents of RAM memory are ever lost due to a battery failure, and so
on). If the switches are set to a value other than 31, the instrument
will always reset the HP-IB address to this value at power-up.
To enter a new address from the front panel:
1.
Press
CSHIFT)
(EELi]
p.
2. Use the number keypad to enter the new decimal address.
3. Terminate the entry by pressing
IHz).
This changes the current
HP-IB address and stores the new address value in RAM memory.
To enter a new address via the HP-IB bus, refer to the KSP command
in the
HP 8568B Operating and Programming Manual.
Changing the HP-IB address by resetting the address switch
on the Al5 Controller assembly requires the removal of the RF
section’s protective bottom cover. This should be performed
only by a qualified service person. Refer all such servicing of the
instrument to qualified service persons.
2-20
Installation