HP 5344S User Manual

Model 8756A
Operating Information
CAPABILITY IDENTIFICATION CODE
The 8756A has the following capability code, in conformance with IEEE
488-1978:
SHl: Source handshake
AHl: Acceptor handshake
T6: Basic talker; Serial Poll; Unaddress to talk if addressed to
listen
L4: Basic listener; Unaddressed to listen if addressed to talk
SRl: Service Request
RLl: Remote; Local
PPO: No Parallel Poll
DCl: Device Clear
DTO: No Device Trigger
CO: No Controller (Take or Pass Control)
El: Open collector bus drivers
DEFAULT ADDRESS
The HP-IB address for the HP 8756A is set at the factory to decimal
16. The current address value may be easily determined by
depressing the ADDRESS (SHIFT LOCAL) key on the front panel and
observing the ACTIVE ENTRY AREA on the CRT display. It may be
changed, if desired, by keying in the digits, using the Keypad in the
ENTRY area, range 01 to 29 decimal, followed by pressing the ENT key.
(Remember that most HP-IB controllers use address 21 decimal; thus,
use of address 21 decimal should be avoided. Further, see 8756
SYSTEM INTERFACE below.) This address will become the address and
remain unchanged even if power is turned off, or "IP" is received.
8756 SYSTEM INTERFACE
The 8756 Rear Panel has another control port called the 8756 SYSTEM
INTERFACE. This connector is physically the same as that defined
for the Hewlett-Packard Interface Bus, but is specifically used to
control an HP-IB Sweep Oscillator (HP 8350B or 8340A) or an HP-IB
plotter (HP 7470A or 9872C) through their respective HP-IB. Sweep
Oscillator or Plotter HP-IB commands are passed through the HP
8756A's HP-IB to the 8756 SYSTEM INTERFACE.
The transfer of commands and data is performed by first sending a Pass
Through "PTd" command to the HP 8756A, where d is 19 decimal for
passing through to the HP-IB Sweep Oscillator or 05 decimal for
passing through to the HP-IB Plotter.
Subsequent addressing of the 8756 SYSTEM INTERFACE address will pass
through commands to the instrument selected. The "PTd" command may
be sent at any time.
The address of the 8756 SYSTEM INTERFACE is determined by
~omplementing the least significant bit of the current HP 8756A
Figure 3-4. HP-JB Operating Features (4 of7)
3-29

HP 5344S Specifications

General

Brand	HP
Model	5344S
Category	Measuring Instruments
Language	English