Agilent Technologies U2781A manual Systcdes?

Page 37

Features and Functions

3

Figure3-6Identifying modules location

In order to identify the location of the modules, a

pre- configuration setting is needed before the synchronization or triggering event begins. Follow the steps below:

1Send the following command to the modular chassis to trigger it. This command will be used to transmit the number to all USB modules via Trigger Bus [0...7]. You can choose from 1 to 255 for your chassis number.

SYSTem:IDentity {123…255}

2Send the following command to every module in the chassis to query each of the slot and chassis numbers.

SYST:CDES?

3You may need to perform some sorting routine to determine which slot it is at and what is the assigned number of its host chassis. If a chassis has six modules in it, then there will be a total of 7 SCPI commands to send to chassis and modules.

U2781A User’s Guide

37

Image 37

Contents Agilent U2781A USB Modular Instrument Chassis WA R N I N G Regulatory Markings Safety SymbolsThis Guide… Declaration of Conformity Regulatory Information for Australia/New Zealand Contents Contents Getting Acquainted Introduction Checking the Contents FeaturesApplications Product Outlook Operating Environment General SpecificationsPower Supply AC Input Electrical SpecificationsPhysical Layout Mechanical SpecificationsGetting Acquainted Installation T E Mount Kit InstallationModular Chassis Installation Hardware Requirements System RequirementsSoftware Requirements DAQ Driver InstallationInstalling the USB DAQ driver Installation Click Finish when the installation is completed Hardware Verification Agilent Measurement Manager Software InstallationInstallation Features and Functions Features and Functions USB Backplane SSI timing signal Functionality2USB backplane block diagram Trigger Bus 3Block diagram of Trigger Bus0...7 and Trigger OutExternal Trigger In Star Trigger Trigger OutSystem Reference Clock 5Block diagram of temperature monitoring and fan control Chassis Temperature MonitoringFan Speed Monitoring Georgraphical Address Identifying Modules LocationModules Identification SYSTCDES? Simultaneous Synchronization SSI 7Synchronization between modules in the chassis Features and Functions General Maintenance General Maintenance Contact us