Xantrex Technology GPIB-M-HPD, GPIB-M-XFR, GPIB-M-XFR3, GPIB-M-XHR, GPIB-M-XPD, GPIB-M-XT Table 4.11 Status Byte Summary Register

Status Registers

Overview

Release 2.1 79

Status Byte The Status byte register contains the STB and RQS(MSS) messages as defined in 488.1. The user can read the status byte register using a 488.1 serial poll or the 488.2 *STB? common command. If the user sends a serial poll, bit 6 will respond with Request Service (RSQ). The value of the status byte is not altered by a serial poll.The *STB? query causes the device to send the contents of the Status Byte Register and the Master Summary Status (MSS) summary message. The *STB? query does not alter the status byte, MSS, or RQS.

Table 4.11 Status Byte Summary Register

Bit Bit Weight Bit Name Description

01Reserved

12Reserved

2 4 Error/Event

Queue (ERR)

Set if any errors are present in

the Error/Event queue.

3 8 Questionable

Status Register

(QSR)

Set if any bits are set in the

Questionable Status Event

register and the corresponding

bit then the Questionable

Status Enable register is TRUE.

4 16 Message

Available (MAV)

MAV is TRUE if the power

supply is ready to accept a

request from the controller to

output data. FALSE when the

output queue is empty.

5 32 Standard Event

Status Bit

Summary (ESB)

A summary of the Standard

Event Status Register. TRUE

with a bit is set in the Standard

Event Status register.

6 64 Request Service

(RQS)

Master Status

Summary (MSS)

MSS indicates that the device

has at least one reason for

requesting service.

7 128 Operation Status

Register (OSR)

TRUE if a bit is set in the

Operation status register and

the corresponding bit in the

Operation Status Enable

register is set.

Contents

Main Page Page Limited Warranty Page Disclaimer Exclusions Page Page About This Manual Main Sections Manual Revisions Power Supply Safety Markings Table of Contents Section 1. Features and Specifications Section 2. Installation and Configuration Section 3. Operation Section 4. Status Registers Section 5. Current Sharing Appendix A. GPIB Appendix B. SCPI Command Reference Appendix C. Error Messages Appendix D. Calibration List of Tables Page List of Figures Page Section 1. Features and Specifications Page Specifications Table 1.1 Specifications for HPD 300 W with GPIB-M or CANbus Tabl e 1.2 Specifications for XFR 1200 W with GPIB-M or CANbus Table 1.3 Specifications for XFR 2800 W with GPIB-M or CANbus Tabl e 1.4 Specifications for XHR 1000 W with GPIB-M or CANbus Table 1.5 Specifications for XPD 500 W with GPIB-M or CANbus Table 1.6 Specifications for XT 60 W with GPIB-M or CANbus Page Section 2. Installation and Configuration Installation and Configuration Initial Inspection Figure 2.1 XFR and XHR Power Supply Front Panel with GPIB-M Interface (XFR 1200 Watt model shown) Page Page Page Figure 2.8 XT/HPD Power Supply Rear Panel with GPIB-M Interface Basic Setup Procedure Page Configure for GPIB Operation Configure for Multichannel Operation Page Page Page User Lines Page Installation and Configuration User Lines Figure 2.13Schematic For User Line Interface 42 Section 3. Operation Power Supply Operating States Power Supply Regulation Modes Remote Control Modes Front Panel LEDs Power Supply Operation Page Page Page Page Page Page Page Auto Sequencing Page Page Page Page Page Page Section 4. Status Registers Page Figure 4.1 Operation Status Registers Release 2.1 71 Table 4.1 OPERation Status Register REGulating Table 4.2 REGulating Sub-Register Page Page Figure 4.2 Questionable Status Registers Release 2.1 75 Table 4.7 QUEStionable Status Register VOLTage Table 4.8 VOLTage Sub-Register This shows whether the present voltage level is over or under the specified trip limit. Release 2.1 77 CURRent This shows whether the present current level is over or under the specified trip limit. + Figure 4.3 IEEE 488.2 Status Register and Status Byte Table 4.9 CURRent Sub-Register page 121 Device-Specific Error List on page 120 page 118 Table 4.11 Status Byte Summary Register Page Status Register Commands Page Page Page Page Page Page Page Section 5. Current Sharing Operation Page Appendix A. GPIB Protocol Specifications Electrical Specifications Low State: Output voltage < Mechanical Specifications Performance Specifications Page Appendix B. SCPI Command Reference Page Understanding SCPI Commands Page Page Page Page Tabl e B.1 IEEE 488.2 Commands 104 Release 2.1 105 Tabl e B.2 Readback Commands 106 Tabl e B.3 Commands for Output Control Release 2.1 107 Tabl e B.4 Commands for Current Share Tabl e B.5 Commands for Calibration Tabl e B.6 Command to Clear all Protection Mechanisms 108 Tabl e B.7 Commands for Fold Protection Tabl e B.8 Commands for Triggering Tabl e B.9 System Commands Release 2.1 109 Tabl e B.1 0Status Commands 110 Release 2.1 111 112 Tabl e B.1 1Protection Commands Table B.12User Lines Table B.13Output State Release 2.1 113 Tabl e B.1 4Auto Sequence Commands 114 Expressions Tabl e B.1 5Expressions Page Appendix C. Error Messages Command Error List Execution Error List Page Device-Specific Error List Tabl e C.3 Device-Specific Error List Query Error List User Request Event Operation Complete Event Front Panel Error Codes Tabl e C.7 Front Panel Error Codes Tabl e C.1 0Auto Sequencing Error Codes CPU Error Codes Tabl e C.8 CPU Error Codes CANbus Error Codes Tabl e C.1 1CANbus Error Codes Tabl e C.1 2Multichannel Error Codes Multichannel Error Codes Current Share Error Codes Tabl e C.1 3Current Share Error Codes Appendix D. Calibration Entering Calibration Mode Page Calibration Procedure Page Exit calibration mode Restore Factory Calibration Page Page Xantrex Technology Inc.