Agilent Technologies E1470A user manual Example Saving Recalling Module States

Page 25

Example: Saving

and Recalling

Module States

The command saves the current state of all relays on the Cascade RF Switch module and thus all the signal path connections. You can use

to save up to ten module states	then use the	command to
return to specific saved state.
The commands have the form	and	where	has a

range of 0 to 9. Error -222, “Data out of range” results if a value other than

0 through 9 is used for

.

This example program first creates several PATH configurations and saves that module state as state number 1. Next, the program creates additional paths (while the previous paths remain closed) and saves that state as state 2. Then, the program resets the module and recalls module state number 1.

Chapter 2

Programming the RF Switch 25

Image 25

Contents E1470-90002 Page Contents Appendix C RF Switch Error Messages Index Government Restricted Rights Agilent Technologies Warranty StatementDocumentation History Safety SymbolsManufacturer’s Address Manufacturer’s NameDeclares, that the product Product Name Model NumberPage Switching Diagram Using This ChapterChapter Cascade Relays COM 33 332 Creating Multiple Multiplexers Configuring the RF Switch ChapterMaximum POWER. The maximum RF power that can be applied RF Switch ConfigurationChapter Configuring the RF Switch On this moduleSetting the Logical Address Setting the Interrupt Request Level Installing User Wiring Configuring the RF Switch Chapter Connecting User WiringSMB Connectors and Connector Housings Assembling SMB Connector JacksUser Connections Wiring RF Switch Installing Device DriversProgramming the RF Switch Chapter Addressing the SwitchProgramming Examples Chapter Programming the RF SwitchProgramming the RF Switch Chapter Example Closing a Signal Path Example Opening Closing Signal Paths Example Saving Recalling Module States Programming the RF Switch Chapter Common Commands Format Command TypesScpi Commands Format Chapter RF Switch Command ReferenceLinking Commands Scpi Command ReferenceRF Switch Command Reference Chapter DIAGnosticCLOSe DIAGnosticDIAGnosticOPEN DIAGnosticCLOSe?DIAGnosticOPEN relay,relay... opens individual relays on Reset to its power-on state Common to NCDIAGOPEN333 DIAGnosticOPEN?RSTDIAGThis programCLOS042,043,053,054,256REL?returns DIAGnosticRELAY?ROUTePATHCOMMon ROUTeExample Closing Channel Path 10002 SYSTem SYSTemERRor?SYSTemVERSion? Command Ieee 488.2 Common Commands Quick ReferenceDescription Commands Quick ReferenceAppendix a Appendix a RF Switch SpecificationsRF Switch Specifications Appendix a About This Appendix Appendix BRegister Addressing Addressing OverviewFigure B-1. Register Address Locations Within VXI A16 Base AddressA16 Address Space Outside the Command Module Table B-1. General Register-based Programming Method Register DefinitionsTable B-2. Register Map Register-Based Programming Appendix BTable B-4. Control Register Bit Pattern write Table B-3. Status Register Bit Patterns readRelay Control Registers Vxie Table B-10. Writing to Relay Control Registers Create and open a device session Register Programming ExampleWait 5 seconds before resetting module Void errhandler /* Error Handling Routine Register-Based Programming Appendix B Appendix C Appendix C RF Switch Error MessagesRF Switch Error Messages Appendix C Index IndexIndex E1470-90002