Model 7002Switch System Instruction Manual - Advanced Test ...

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IEEE-488 ReferenceReading this register using the above CPI command does notclear the register. The following list summarizes operationsthat will clear the Questionable Event Enable Register:1. Cycling power.2. Sending the :STATus:PRESet command.3. Sending the :STATus:QUEStionable:ENABle 0 command.5.6.7 QueuesThe Model 7002 uses two queues; the Output Queue and theError/Status Queue. The queues are first-in first-out (FIFO)registers. They are used to hold data messages and error/statusmessages respectively. The Model 7002 Status Model(Figure 5-5) shows how the two queues are structured withthe other registers.Output Queue ⎯ The Output Queue is used to hold all datathat pertains to the normal operation of the instrument. Forexample, when a query command is sent, the data messagethat pertains to that query is placed in the Output Queue.When a data message is placed in the Output Queue, theMessage Available (MAV) bit in the Status Byte Register becomesset. A data message is cleared from the Output Queuewhen it is read. The Output Queue is considered clearedwhen it is empty. An empty Output Queue clears the MAVbit in the Status Byte Register.A message from the Output Queue is read by addressing theModel 7002 to talk. The following programming example inHP BASIC 4.0 sends a query command, sends the data messageto the computer, and then displays it on the CRT.10 OUTPUT 707; “*IDN?” ! Request identificationcode20 ENTER 707; A$ ! Address 7002 to talk30 PRINT A$ ! Display ID code40 ENDError Queue ⎯ The Error Queue is used to hold error messagesand status messages. When an error or status event occurs,a message that defines the error/status is placed in theError Queue. This queue will hold up to 10 messages.When a message is placed in the Error Queue, the ErrorAvailable (EAV) bit in the Status Byte Register is set. An errormessage is cleared from the Error Queue when it is read.The Error Queue is considered cleared when it is empty. Anempty Error Queue clears the EAV bit in the Status ByteRegister.An error message from the Error Queue is read by sendingeither of the following SCPI query commands and then addressingthe Model 7002 to talk::SYSTem:ERRor?:STATus:QUEue?Refer to paragraphs 5.16.7 (:STATus:QUEue?) and 5.17.4(:SYSTem:ERRor?) for complete information on reading errormessages.5.6.8 Status byte and service request (SRQ)Service request is controlled by two 8-bit registers; the StatusByte Register and the Service Request Enable Register. Thestructure of these registers is shown in Figure 5-12.Status Byte Register — The summary messages from thestatus registers and queues are used to set or clear the appropriatebits (B2, B3, B4, B5 and B7) of the Status Byte Register.These bits do not latch and their states (0 or 1) are solelydependent on the summary messages (0 or 1). For example,if the Standard Event Status Register is read, its register willclear. As a result, its summary message will reset to 0, whichin turn will clear the ESB bit in the Status Byte Register.Bit B6 in the Status Byte Register is either:• The Master Summary Status (MSB) bit, sent in responseto the *STB? command, indicates the statusof any set bits with corresponding enable bits set.5-21
IEEE-488 ReferenceStatus Summary Messages* STB ?Serial Poll (B15 - B8)OSB(B7)MSSRQS(B6)ESB(B5)MAV(B4)QSB(B3)EAV(B2) (B1) (B0)Status ByteRegister&&OR&&&* SRE* SRE ?(B15 - B8)OSB(B7)(B6)ESB(B5)MAV(B4)QSB(B3)EAV(B2) (B1) (B0)Service RequestEnable RegisterOSB = Operation Summary BitMSS = Master Summary Status (IEEE-488.2)RQS = Request for Service (IEEE-488.1)ESB = Event Summary BitMAV = Message AvailableQSB = Questionable Summary BitEAV = Error Available& = Logical ANDOR = Logical ORFigure 5-12Status byte and service request (SRQ)• The Request for Service (RQS) bit, sent in responseto a serial poll, indicates which device was requestingservice by pulling on the SRQ line.For description of the other bits in the Status Byte Register,refer to paragraph 5.10.14.*STB?When reading the Status Byte Register using the *STB?command, bit B6 is called the MSB bit. None of the bits inthe Status Byte Register are cleared when using the *STB?command to read it.The IEEE-488.2 standard uses the following common querycommand that simply reads the Status Byte Register contents:The IEEE-488.1 standard has a serial poll sequence that willalso read the Status Byte Register and is better suited to detecta service request (SRQ). When using the serial poll, bit5-22
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®Established 1981Advanced Test Equ
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WARRANTYKeithley Instruments, Inc.
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Manual Print HistoryThe print histo
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If you are using a test fixture, ke
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Table of Contents1 General Informat
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4.10.3 Scanning examples ..........
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5.13.4 :FCHannels ................
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List of Illustrations2 Card Install
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6 Theory of OperationFigure 6-1 Mod
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8 MaintenanceTable 8-1Table 8-2Tabl
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General Informationthorized repair
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Card InstallationNOTEIf using the s
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3Getting Started3.1 IntroductionThi
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Getting StartedWARNING: INTERCONNEC
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Getting StartedSLOT 112ROW34COLUMN
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Getting Started3.6 Overview of scan
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Getting Started3.7.2 Close and open
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Getting Started2. If the scan list
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Getting Started3.8 Switching card c
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Getting Started3.9.2 Close and Open
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Getting StartedSCPI (Standard Comma
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Getting Started3.10.5 Abbreviated s
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Getting Started20 OUTPUT 707; “:s
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4Front Panel Operation4.1 Introduct
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Front Panel OperationAnnunciatorsTa
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Front Panel Operation3COLUMNSLOT 1
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Front Panel OperationNot all Model
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Front Panel Operationthe VFD which
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Front Panel OperationFront panel ke
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Front Panel OperationSlot 111 2 3 4
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Front Panel Operation4.8 Channel li
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Front Panel OperationStep 3. Enter
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Front Panel Operationd. Click the I
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Front Panel OperationIdleOPEN ALLId
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Front Panel OperationChannel layerN
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Front Panel Operationsatisfy a chan
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Front Panel OperationExample 3:ARM
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Front Panel Operation6. To store th
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Front Panel Operation8. The INFO ke
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Front Panel Operation4.12.2 GPIBThe
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Front Panel OperationPerform the fo
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Front Panel OperationPlace the curs
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Front Panel OperationThe message in
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Front Panel Operation4.14 Scan conf
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Page 114 and 115: Front Panel Operation7002Press STEP
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Page 120 and 121: 5IEEE-488 Reference5.1 Introduction
Page 122 and 123: IEEE-488 ReferenceIEEE-488Table 5-1
Page 124 and 125: IEEE-488 ReferenceNOTEController pr
Page 126 and 127: IEEE-488 ReferenceTriggerTransition
Page 128 and 129: IEEE-488 ReferenceStandard Event St
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Page 156 and 157: IEEE-488 Referenceas command paths.
Page 158 and 159: IEEE-488 ReferenceResponse messages
Page 160 and 161: IEEE-488 Reference5.10 Common comma
Page 162 and 163: IEEE-488 Reference5.10.1 *CLS ⎯ c
Page 164 and 165: IEEE-488 Referencewhere; CME (bit B
Page 166 and 167: IEEE-488 Reference5.10.4 *ESR? ⎯
Page 168 and 169: IEEE-488 Reference5.10.5 *IDN? ⎯
Page 170 and 171: IEEE-488 ReferenceNOTESee *OPC?, *T
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Page 178 and 179: IEEE-488 Reference5.10.12 *SRE ⎯
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Page 186 and 187: IEEE-488 ReferenceLine 70 Wait unti
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IEEE-488 Reference5.11 :DISPlay sub
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:DISPlay subsystemIEEE-488 Referenc
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:DISPlay subsystemIEEE-488 Referenc
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IEEE-488 Reference5.12 :OUTPut subs
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IEEE-488 Reference5.13 [:ROUTe] sub
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[:ROUTe] subsystemIEEE-488 Referenc
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IEEE-488 Reference5.14 Sense subsys
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IEEE-488 Reference5.15 :SOURce subs
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IEEE-488 Reference5.16 :STATus subs
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:STATus SubsystemIEEE-488 Reference
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IEEE-488 Reference5.17 :SYSTem subs
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:SYSTem SubsystemIEEE-488 Reference
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IEEE-488 Reference5.18 Trigger subs
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Trigger subsystemIEEE-488 Reference
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6Theory of Operation6.1 Introductio
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Theory of Operation6.3 Control func
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Theory of Operation6.4 Relay contro
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Theory of OperationID data is conta
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Theory of OperationFromDigitalBoard
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Theory of Operationµ DINConnectorT
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MaintenanceNOTEThe digital and disp
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MaintenanceFuse replacement procedu
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Maintenance7.6 Instrument disassemb
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Maintenance7.6.5 Power supplies rem
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Maintenance8. Press “1”, “1
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MaintenanceEDIT ERR REM TALK LSTN S
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MaintenanceTo review the error, pre
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MaintenanceTrigger 8 (STI8) is set
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MaintenanceDETAIL AREF:GRN/YELWIRE#
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MaintenanceBOARDS MUST BE HANDLED W
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MaintenanceSTEP 1FA-151-1, FASTENER
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MaintenanceDETAIL ACC-47, CABLEDIG
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Maintenance8#4-40x1/4"PFH(4 REQ'D)(
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Replaceable Parts
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Replaceable Parts
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Replaceable PartsTable 8-2Digital b
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Artisan Scientific - Quality Instru
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(+5V)**(+5V)**** ****** **********
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Replaceable PartsTable 8-3VFD displ
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Replaceable PartsTable 8-4Backplane
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Artisan Scientific - Quality Instru
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Replaceable Parts
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Replaceable PartsTable 8-6Miscellan
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Interface Function CodesTable A-1Mo
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Controller ProgramsIBM PC/XT/AT wit
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Controller Programs10 DEF SEG=&HC40
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Controller ProgramsHewlett-Packard
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Controller ProgramsBUS.INIT\ Initia
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CASCII Character Codesand IEEE-488
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ASCII Character Codes and IEEE-488M
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IEEE-488 Bus Overviewtype of instru
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IEEE-488 Bus Overviewdevice will re
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IEEE-488 Bus OverviewLAG (Listen Ad
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IEEE-488 Bus OverviewTable D-2Hexad
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EIEEE-488 Conformance InformationIn
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FSCPI Conformance InformationIntrod
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SCPI Conformance InformationTable F
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IEEE-488.2 Common CommandsMnemonic
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SCPI Command SubsystemTable H-1DISP
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SCPI Command SubsystemTable H-4SENS
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SCPI Command SubsystemTable H-6 (co
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SCPI Command SubsystemTable H-8 (co
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QuickBasic and QuickC ProgramsMicro
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QuickBasic and QuickC ProgramsMicro
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Index:ABORt 5-134:BBMake 5-88:CLOS
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Scanning channels 4-20Scanning exam
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Specifications are subject to chang
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