User`s guide
Table Of Contents
- Agilent E3632A DC Power Supply
- Table of Contents
- List of Figures
- List of Tables
- 1 Getting Started
- 2 Operation and Features
- Overview
- Constant Voltage Operation
- Constant Current Operation
- Storing and Recalling Operating States
- Programming the Overvoltage Protection
- Programming the Overcurrent Protection
- Remote Voltage Sensing
- Disabling the Output
- System-Related Operations
- Remote Interface Configuration
- GPIB Interface Configuration
- RS-232 Interface Configuration
- Calibration
- 3 Remote Interface Reference
- SCPI Command Summary
- Introduction to the SCPI Language
- Simplified Programming Overview
- Using the APPLy Command
- Output Settings and Operation Commands
- Triggering Commands
- System-Related Commands
- Calibration Commands
- RS-232 Interface Commands
- SCPI Status Registers
- What is an event register?
- What is an enable register?
- SCPI status system
- The Questionable Status register
- The Standard Event register
- The Status Byte register
- Using Service Request (SRQ) and Serial POLL
- Using *STB? to read the Status Byte
- Using the Message Available Bit (MAV)
- To interrupt your bus controller using SRQ
- To determine when a command sequence is completed
- Using *OPC to signal when data is in the output buffer
- Status Reporting Commands
- Halting an Output in Progress
- SCPI Conformance Information
- IEEE-488 Conformance Information
- 4 Error Messages
- 5 Application Programs
- 6 Tutorial
- 7 Characteristics and Specifications

3 Remote Interface Reference
SCPI Status Registers
110 E3632A User’s Guide
For example, 16 is returned when you have queried the
status of the questionable event register, the temperature
condition is questionable.
The Questionable Status Enable register is cleared when you
execute the STAT:QUES:ENAB 0 command.
The Standard Event register
The Standard Event register reports the following types of
instrument events: power- on detected, command syntax
errors, command execution errors, self- test or calibration
errors, query errors, or when an *OPC command is executed.
Any or all of these conditions can be reported in the
Standard Event summary bit (ESB, bit 5) of the Status Byte
register through the enable register. To set the enable
register mask, you write a decimal value to the register
using the *ESE (Event Status Enable) command.
NOTE
An error condition (Standard Event register bit 2, 3, 4, or 5) will always
record one or more errors in the power supply’s error queue. Read the error
queue using the SYST:ERR? command.
Table 3 - 5 Bit definitions — Standard Event register
Bit Decimal value Definition
0 OPC 1 Operation complete. All commands prior to and including an *OPC
command have been executed.
1 Not Used 0 Always set to 0.
2 QYE 4 Query Error. The power supply tried to read the output buffer but it was
empty. Or, a new command line was received before a previous query
had been read. Or, both the input and output buffers are full.
3 DDE 8 Device Error. A self-test or calibration error occurred (refer to error
messages 601 to 755 in “Self-Test Error Messages” on page 135 and
“Calibration Error Messages” on page 137).