Tektronix OA 5000 The Status Byte Register (SBR)

Status and Events

Programming

3 --- 3 6

Table3-8: SESRBit Functions

Bit Function

7 (MSB) PON (Power On). Shows that the OA5000 w as powered on.

6URQ (User Request). Shows that the Remote button was

pressed.

5CME (Command Error). Shows that an error occurred while

the OA 5000 was parsing a command or query.Command

error messages are listed inTable 3-11 on page 3---41.

4EXE (Execution Error). Shows that an error occurredw hile

the OA 5000 was executing a command or query.Execution

error messages are listed inTable 3-12 on page 3---42.

3DDE (Device Error). Shows that a device error occurred. De-

vice error messages are listedin Table 3-13 on page 3---43.

2QYE (Query Error). Shows that either an attempt was made

to read the Output Queue when no data was present or

pending, or that data in the Output Queuew as lost.

1RQC (Request Control). Notused.

0(LSB) OPC (OperationComplete). Shows that the operation is com-

plete. This bit is set bythe *OPC command.

The Status Byte Register (SBR) —shown in Figure 3-7, records wheth-

er output is availablein the Output Queue, whether the OA 5000 requests

service, and whether the SESR has recorded any events.

Use a Serial Pollor the *STB? query to read the contents of the SBR. Refer

to Table3-9. The bits in the SBR are set and cleared depending on the

contents of the SESR, the Event Status Enable Register (ESER), and the

Output Queue. (When you use a SerialPoll to obtain the SBR, bit 6 is the

RQS bit. When you use the *STB? queryto obtain the SBR, bit 6 is the MSS

bit.)

—

RQS

ESBMAV————

MSS

7

6

543210

6

Figure 3-7: TheStatus Byte Register (SBR)

Contents

Main Page WARRANTY Page ECDeclarationofConformity Page Welcome Page Contents A Quick Tour User Reference Programming Appendices Page List of Figures List of Tables Safety Symbols and Terms Specific Precautions Page Page Page Page Installation CAUTION Removing the OA 5000 A Quick Tour Preset the OA 5000 Storing and Recalling Settings Setting a Reference Value Settings at Power Up Page Page Operator Overview The User Reference Section Operator Overview 2 --- 2 Figure 2-1: OA 5002 Front Panel User Reference Enabling/Disabling Attenuation WARNING Page Setting Attenuation Levels Specifying the Wavele ngth Setting the Attenuation Level Page Page Setting the GPIB Address Page Setting the Reference Level Measuring Insertion Loss Approximating Signal Power Page Storing and Recalling Attenuation Levels Page Page Page Setting Up the Instrument Controllers Using the GPIB Interface GPIB Requirements Setting the GPIB Address Page Command Syntax Clearing the OA 5000 ATT:DB 10 Command and Query Structure Commands Queries Headers in QueryResponses Command Entry Abbreviating Commands Concatenating Commands Message Terminators Argument Types Block Arguments Numeric Arguments Syntax Diagrams Page Commands Common Commands and Queries Device Commands and Queries ADJusting? (Query Only) ALLev? (Query Only) Page BLRN *CAL? (Query Only) *CLS (No Query Form) DESE DISable DISPlay *ESE *ESR? (Query Only) EVEnt? (Query Only) EVMSG? (Query Only) EVQty? (Query Only) FACTORY (No Query Form) HEADer *IDN? (Query Only) *LRN?orSET? *OPC *PSC RECall (No Query Form) REFerence *RST (No Query Form) *SRE *STB? (Query Only) STORe (Store Attenuation) *TST? (Query Only) VERBOSE *WAI (No Query Form) WAVelength Status and Events Registers Status Registers The Standard Event Status Register (SESR) The Status Byte Register (SBR) Enable Registers The Device Event Status Enable Register (DESER) The Event Status Enable Register (ESER) The Service Request Enable Register (SRER) The Enable Registers and the *PSC Command The Output Queue The Event Queue Queues Event Handling Sequence Status and Events Conflicts 3 --- 4 0 Programming Messages Page Page Page Page Page Appendix A: Accessories Standard Accessories Optional Accessories Page Appendix B: Specifications Page Page Page Appendix C: Interface Specifications Interface Messages Page GPIB Function Subsets Page Appendix D: Using the *OPC Query/Command Page Appendix E: Packing for Shipment Page Appendix F: Maintenance Cleaning the Optical Ports Page Changing the Optical Port Connectors Page Page Page Appendix G: Product Verification Equipment List Power Up Display Modes GPIB Address Setting Attenuation Range Shutter Attenuation and the DISABLE button 1310 nm: Page 1550 nm: 850 nm (except OA 5002): Page Appendix H: Replaceable Parts Item Names Parts Ordering Information Using the Replaceable Parts List Indentation System Abbreviations Page AppendixH: Replaceable Parts A --- 3 4 Appendices CROSS INDEX --- MFR. CODE NUMBER TO MANUFACTURER AppendixH: Replaceable Parts OA 5000 Series User Manual A --- 3 5 Page Page Page Index A B C D E F G H N O P Q R T U V W