6482-901-01 Rev. A / August 2012
Return to
C-13
Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
Appendix C: IEEE-488 Bus Overview
The codes define Model 6482 capabilities as follows:
SH (Source Handshake Function):
SH1 defines the ability of the instrument to initiate the
transfer of message/data over the data bus.
AH (Acceptor Handshake Function):
AH1 defines the ability of the instrument to guarantee
proper reception of message/data transmitted over the data bus.
T (Talker Function):
The ability of the instrument to send data over the bus to other devices is
provided by the T function. Instrument talker capabilities (T5) exist only after the instrument has
been addressed to talk.
L (Listener Function):
The ability for the instrument to receive device-dependent data over the
bus from other devices is provided by the L function. Listener capabilities (L4) of the instrument
exist only after it has been addressed to listen.
SR (Service Request Function):
SR1 defines the ability of the instrument to request service from
the controller.
RL (Remote-Local Function):
RL1 defines the ability of the instrument to be placed in the remote
or local modes.
PP (Parallel Poll Function):
The instrument does not have parallel polling capabilities (PP0).
DC (Device Clear Function):
DC1 defines the ability of the instrument to be cleared
(initialized).
DT (Device Trigger Function):
DT1 defines the ability of the Model 6482 to have readings
triggered.
C (Controller Function):
The instrument does not have controller capabilities (C0).
TE (Extended Talker Function):
The instrument does not have extended talker capabilities
(TE0).
LE (Extended Listener Function):
The instrument does not have extended listener capabilities
(LE0).
E (Bus Driver Type):
The instrument has open-collector bus drivers (E1).
Table C-6
Model 6482 interface function codes
Code
Interface function
SH1
AH1
T5
L4
SR1
RL1
PP0
DC1
DT1
C0
E1
TE0
LE0
Source Handshake capability.
Acceptor Handshake capability.
Talker (basic talker, serial poll, unaddressed to talk on LAG).
Listener (basic listener, unaddressed to listen on TAG).
Service Request capability.
Remote/Local capability.
No Parallel Poll capability.
Device Clear capability.
Device Trigger capability.
No Controller capability.
Open collector bus drivers.
No Extended Talker capability.
No Extended Listener capability.
Summary of Contents for 6482
Page 3: ......
