Agilent Technologies E4350B, E4351B RI (Remote Inhibit), Using Device Clear

Status Reporting 93

RI (Remote Inhibit)

Whenever a remote inhibit signal is received at the digital port (see appendix C - Digital Port Functions), the Agilent SAS

will receive an RI event at the Questionable Status register. By programming the status subsystem, you may use RI to

generate a service request (SRQ) to the controller and/or to create a DFI output at the digital port. By using RI/DFI in this

way, you can chain the power supplies to create a serial shutdown in response to the INH input.

To enable the OV, OC, OT, and the RI conditions to generate an FLT signal, program the Questionable Status register as

follows: STAT:QUES:ENAB 531

Using Device Clear

You can send a device clear at any time to abort a SCPI command that may be hanging up the GPIB interface. The status

registers, the error queue, and all configuration states are left unchanged when a device clear message is received. Device

clear performs the following actions:

■ The input and output buffers of the dc source are cleared.

■ The dc source is prepared to accept a new command string.

The following statement shows how to send a device clear over the GPIB interface using Agilent BASIC:

CLEAR 705 IEEE-488 Device Clear

The following statement shows how to send a device clear over the GPIB interface using the GPIB command library for C

or QuickBASIC:

IOCLEAR (705)

Contents

Main CERTIFICATION WARRANTY LIMITATION OF WARRANTY EXCLUSIVE REMEDIES ASSISTANCE SAFETY SUMMARY SAFETY SUMMARY (continued) SAFETY SYMBOL DEFINITIONS DECLARATION OF CONFORMITY Table Of Contents Page Page Page Page Page Page General Information Whats In This Guide? Safety Considerations Options and Accessories Operator Replaceable Parts Description Key Features Output Characteristic Fixed Mode Simulator Mode Page Table Mode Page Installation Inspection Location and Temperature AC Line Connection AC Line Voltage Conversion Power Products plug&play VXI Instrument Drivers Downloading and Installing the Driver Accessing Online Help Turn-On Checkout Preliminary Checkout Power-On Checkout Note Using The Keypad Output Checkout Important Page Page Checking The Save And Recall Functions Determining The GPIB Address In Case Of Trouble Note User Connections Rear Panel Connections Note Load Connections Note Sense Connections Note Page Over Current Protection Considerations Note B A Operating Configurations + - 2 1 B A 3 Page Page Page Controller Connections Note Page Front Panel Operation Note Key Functions 3 15 4 Page Page Programming the Output Important Note Programming Overvoltage Protection Programming Overcurrent Protection Note CV Mode VS. CC Mode Unregulated Operation Saving and Recalling Operating States Note Turn-On Conditions Setting The GPIB Address Note Remote Programming GPIB Capabilities of the Agilent SAS Introduction To SCPI lmportant Note Types of SCPI Commands Types of SCPI Messages Page SCPI Data Formats Examples Note Note: Note System Considerations Page Page Page Page Language Dictionary Description Of Common Commands Page Page Page Page Page Page Description Of Subsystem Commands Page Calibration Commands Display S ubsyste m Note Measure Subsystem Memory Subsystem Output Subsystem Page Page Page Page Page Status Subsystem Page Page Note System Commands Trigger Subsystem Page Page Status Reporting Agilent SAS Status Structure Operation Status Group Page Questionable Status Group Standard Event Status Group Service Request Enable Register Output Queue Initial Conditions At Power On Examples Note SCPI Command Completion Note DFI (Discrete Fault Indicator) RI (Remote Inhibit) Using Device Clear Page A Specifications and Application Information Specifications and Supplemental Characteristics Page Page Page Output Impedance Graphs Page Page Peak Power Tracker Application ()() Series Switching Regulation Shunt Switching Regulation B Verification and Calibration Note Test Equipment Required Verification Note Page Calibration Important Front Panel Calibration Page Calibration Over The GPIB Calibration Language Dictionary Page 114 Verification and Calibration Agilent BASIC Calibration Program Figure A-2. Agilent BASIC Calibration Program Verification and Calibration 115 Figure A-2. Agilent BASIC Calibration Program (continued) Page C Digital Port Functions Digital Connector Note Fault/Inhibit Operation Page Page Page D Error Messages Hardware Error Messages Calibration Error Messages System Error Messages Page Index A B C D F G H I J L M N O P S T U V W Agilent Sales and Support Offices