User`s manual

Servant Area with the
Command Module as
Resource Manager/Slot
0 Device
The Command Module should be set so it is the top level commander. The
Command Module’s logical address setting is combined with its servant
area switch setting to define the Command Module’s servant area.
When the Command Module is the resource manager, its logical address is
0. To set the Command Module as the top level commander, its servant
area switch should be set to 255. Then the Command Module’s servant area
includes all modules with logical addresses from 1 through 255.
The Command Module controls servant modules by translating Standard
Commands for Programmable Instruments (SCPI) commands for
register-based modules, or by serving as the GPIB interface to
message-based modules.
When the Command Module is the resource manager/slot 0 device, the
following guidelines apply:
• The Command Module should be the commander for the system’s
Agilent Technologies register-based modules. This enables Agilent’s
register-based modules to be programmed with SCPI commands via
the Command Module. The Command Module should also be the
commander for the system’s message-based modules so that the
Command Module will serve as the GPIB interface to those
modules.
• The Command Module will always be the commander of Instrument
BASIC (IBASIC) whether or not IBASIC is in the Command
Module’s servant area.
• A commander may be a servant to another commander (forming a
hierarchical system as shown in Figure A-2). Servants in the servant
area of the "lower-level" commander are controlled by the
lower-level commander.
Servant Area with an
Embedded Computer
as Resource
Manager/Slot 0 Device
An embedded computer, such as the Agilent E1499A V/382, should be the
commander for the system’s message-based modules (including other
commanders). Modules such as the Agilent E1406/05 Command Module
should be the commander for the system’s register-based modules. This
enables Agilent Technologies’ register-based modules to be programmed
with SCPI commands via the Command Module.
A commander may be a servant to another commander (forming a
hierarchical system). Servants in the servant area of the "lower-level"
commander are controlled by the lower-level commander.
A-6 Terms and Definitions C-Size Configuration Guide