HP E1368A manual Writing to the Registers, Status/Control Register Channel Enable Register

Page 77

Status/Control Register

Channel Enable Register

Each coaxial switch requires about 30 msec execution time (close to open or open to close) during which time the switch is "busy". A read of the Status/Control Register (base + 0416) returns FFFF16 when the module is not busy or returns FF7F16 (bit 7 is low-true) when the module is busy.

A read of the Channel Register (base + 0816) always returns FFFF16, regardless of the channel states.

Writing to the Registers

Channel Enable Register

Note

You can write the following Microwave Switch registers:

Channel Enable Register (base + 0816)

Writes to the Channel Enable Register (base + 0816) enable you to open or close the desired channel. For example, write a "1" to bit 2 of the Channel Enable Register to close channel 02. Or, write a "0" to bit of the register to open channel 00.

All HP 3331X and HP 876X Microwave Switches are latching and will remain in the last state during power down. Performing a reset (or at power-up) opens all channels (refer to Figure 2-6). Any combination of channel open or closed states is allowed.

Appendix B

HP E1368A/69A/70A Registers 77

Image 77

Contents Contents Open OPEN? Scan Scanmode SCANMODE? Cpon HP E1368A/69A/70A Modules User’s Manual Contents Certification Documentation History According to ISO/IEC Guide 22 and EN AprilPage Business Reply Mail Page Microwave Switch Description Using This ChapterGetting Started with the HP E1368A/69A/70A Chapter HP E1368A Switches Power Supply CircuitInstrument Definition Programming the Microwave SwitchCard Numbers for Multiple-Module Switchboxes Initial Operation Example Reset the switchbox and close channelConfiguring the HP E1368A/69A/70A Modules Logical Address Selection Setting the Address SwitchInterrupt Priority Selection Selecting the Interrupt PriorityInstalling Switches on the Module Installing Switches on the HP E1369AChapter Configuring the HP E1368A/69A/70A Modules Microwave Switch Installation Connecting Switches External To the Module Selecting Switch Power Selecting Switch Voltage Connecting Field WiringInstalling a Switch Or Attenuator on Module Microwave Switch/Attenuator Installation Shows the internal schematic of a single attenuator section Microwave Switch Commands Using the HP E1368A/69A/70A ModulesReset Conditions Example Single Channel Switching Switching ChannelsPower To connect C to Port 1, execute 33363K 33364K 33365K 33366K Example Multiple Channel Switching Using EXTernal Example Transfer Switch Using Two Port Switches Example Transfer Switch Using One Port Switch Example 4 x 1 Multiplexer To route signal B to the output, executeSelects the Trigger Source Scanning ChannelsOutput 722TRIG EXT … Example Scanning ChannelsExample Multiple Channel Scanning Example Using the Scan Complete Bit110END Recalling and Saving States Detecting Error ConditionsRepeat Synchronizing Instruments Synchronizing the Microwave SwitchQuerying the Microwave Switch Scpi Command Format Command TypesCommon Command Format HP E1368A/69A/70A Command Reference Chapter Semicolon between the commands. For example Example Stopping a Scan with ABORt Scpi Command ReferenceABORt ∙ Number of Scans Use only numeric values between 1 For the number of scanning cycles default isArmcoun DISPlay Example Select Module #2 in a Switchbox for MonitoringMONitorCARD ∙ Selecting a Specific Module to be Monitored Use∙ Selecting the Module to be Monitored Use Example Enabling the Monitor ModeExample Querying the Monitor Mode Example Enabling Continuous Scans ∙ Stopping Continuous Scans See the ABORt commandINITiate Example Query Continuous Scanning State Example Enabling Trig Out Port Example Query Trig Out Port Enable StateOUTPut ∙ Closing Channels To close Example Closing Microwave Switch ChannelsROUTe ∙ Opening Channels To open Example Opening Microwave Switch ChannelsOr any combination Example Scanning Using External DeviceChapter HP E1368A/69A/70A Command Reference STATus Example Query the Standard Operation Status Enable Register ∙ Setting Bit 7 of the Status Byte RegisterSTATOPER? CDEScription? SYSTemExample Reading the Model Number of a Card #1 Module Comments Microwave Switch Module Model NumberExample Reading the Error Queue Example Advancing Scan Using the TRIGger Command ∙ Executing the TRIGgerIMMediate Command a channel listTRIGger ∙ Hold or BUS Source Remains If selected, the TRIGgerSOURceExample Scanning Using External Triggers ∙ Trig Out Port Shared by Switchboxes See the OUTPut commandExample Query the Trigger Source Scanning Using Bus TriggersHP Command Module User’s Manual, or the ANSI/IEEE Standard Ieee 488.2 Common CommandsScpi Commands for Quick Reference Command Quick ReferenceHP E1368A/69A/70A Command Reference Chapter Maximum Input Power 1 Watt average Characteristic Impedence 50Ω Insertion LossConnectors Used P1 No. Slots Operating Temperature HP E1368A/69A/70A Specifications Appendix a Register Definitions HP E1368A/69A/70A RegistersID and Device Type Registers Addressing the RegistersReading the Registers Writing to the Registers Status/Control Register Channel Enable RegisterHP E1368A/69A/70A Registers Appendix B HP E1368A/69A/70A Error Messages Page HP E1368A/69A/70A Modules User’s Manual Index IndexHP E1368A/69A/70A Modules User’s Manual Index HP-IB HP E1368A/69A/70A Modules User’s Manual Index HP E1368A/69A/70A Modules User’s Manual Index HP E1368A/69A/70A Modules User’s Manual Index