6-4
Section 6: 9100 System Operation — SCPI Language
Final Width = 215mm
6.3
Introduction
This first part of Section 5 gives the information necessary to put the 9100 into operation
on the IEEE 488 bus. For more detailed information, refer to the standard specification
in the publications ANSI/IEEE Std. 488.1-1987 and IEEE Std. 488.2-1988.
6.3.1
Interface Capability
6.3.1.1
IEEE Standards 488.1 and 488.2
The 9100 conforms to the Standard Specification IEEE 488.1-1987: ‘IEEE Standard
Digital Interface for Programmable Instrumentation’, and to IEEE 488.2-1988: ‘Codes,
Formats, Protocols and Common Commands’.
6.3.1.2
The 9100 in IEEE 488.2 Terminology
In IEEE 488.2 terminology the 9100 is a device containing a system interface. It can be
connected to a system via its system bus and set into programmed communication with
other bus-connected devices under the direction of a system controller.
6.3.1.3
Programming Options
The instrument can be programmed via the IEEE Interface, to:
•
Change its operating state (Function, Range, etc).
•
Transmit its own status data over the bus.
•
Request service from the system controller.
6.3.1.4
Capability Codes
To conform to the IEEE 488.1 standard specification, it is not essential for a device to
encompass the full range of bus capabilities. For IEEE 488.2, the device must conform
exactly to a specific subset of IEEE 488.1, with a minimal choice of optional capabilities.
The IEEE 488.1 document describes and codes the standard bus features, for manufacturers
to give brief coded descriptions of their own interfaces’ overall capability. For IEEE
488.2, this description is required to be part of the device documentation. A code string
is often printed on the product itself.
The codes which apply to the 9100 are given in table 6.1, together with short descriptions.
They also appear on the rear of the instrument next to the interface connector. These codes
conform to the capabilities required by IEEE 488.2.
Appendix C of the IEEE 488.1 document contains a fuller description of each code.
SH1
Source Handshake Capability
AH1
Acceptor Handshake
Capability
T6
Talker (basic talker, serial
poll, unaddressed to talk if
addressed to listen)
L4
Listener (basic listener,
unaddressed to listen if
addressed to talk)
SR1
Service Request Capability
RL1
Remote/Local Capability (incl.
Local Lockout)
PP0
No Parallel Poll Capability
DC1
Device Clear Capability
DT0
No Device Trigger Capability
C0
No Controller Capability
E2
Open-Collector and Three-
State Drivers
IEEE
488.1
Interface Function
Subset
Table 6.1
IEEE 488.1 Interface Capability
