Black Box IC026AE-R2, IC026A-R2 manual Talk Address Group TAG

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CHAPTER 6: IEEE 488 Primer

6.7.3UNLISTEN (UNL)

This command tells all bus devices to Unlisten. The same as Unaddressed to Listen. ($3F)

6.7.4TALK ADDRESS GROUP (TAG)

There are 31 (0 to 30) talk addresses associated with this group. The 3 most significant bits of the data bus are set to 010 while the 5 least significant bits are the address of the device being told to talk.

6.7.5 UNTALK (UNT)

This command tells bus devices to Untalk. The same as Unaddressed to Talk. ($5F)

6.7.6LOCAL LOCKOUT (LLO)

Issuing the LLO command prevents manual control of the instrument’s functions. ($11)

6.7.7DEVICE CLEAR (DCL)

This command causes all bus devices to be initialized to a predefined or power-up state. ($14)

6.7.8SELECTED DEVICE CLEAR (SDC)

This causes a single device to be initialized to a pre-defined or power-up state. ($04)

6.7.9SERIAL POLL DISABLE (SPD)

The SPD command disables all devices from sending their Serial Poll status byte. ($l9)

6.7.10SERIAL POLL ENABLE (SPE)

A device which is Addressed to Talk will output its Serial Poll status byte after SPE is sent and ATN is unasserted. ($18)

6.7.11GROUP EXECUTE TRIGGER (GET)

This command usually signals a group of devices to begin executing a triggered action. This allows actions of different devices to begin simultaneously. ($08)

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Contents RS-232↔IEEE Interface Converter RS-232↔IEEE 488 Interface Converter Trademarks Used in this Manual RS-232↔IEEE 488 Interface Converter NOM Statement RS-232↔IEEE 488 Interface Converter Contents RS-232↔IEEE 488 Interface Converter Contents Serial Interface SpecificationsIEEE-488 Interface General SpecificationsDescription IntroductionAbbreviations Serial Port ConfigurationGetting Started InspectionSW3 Serial Port Settings Switch SW1 Selecting the Serial Baud Rate Switch SW1 Selecting the Serial Word Length Data Bits Switch SW2 Selecting the Serial Parity Switch SW1 Selecting the Serial Handshake Selecting Terminator Substitution Switch SW2 Selecting the Serial TerminatorSwitch SW3 Selecting the Ieee Bus Terminator Selecting the ModeSelecting the Ieee Address 10. Switch SW2 Selecting the ModeFeature Selections Serial Interface 15. Selecting RS-232 or RS-422 Signal Levels Request To Send-Output-Pin RxD Receive Data-Input-PinTxD Transmit Data-Output-Pin Clear To Send-Input-Pin+TxD Transmit Data Plus-Output-Pin Vtest Test Voltage-Output-PinGnd Ground-Pin +RxD Receive Data Plus-Input-PinRTS CTS DSR RTS CTS GeneralGetting Started Controller-Mode Serial to Ieee Operation Controller OperationSerial and Ieee Terminator Substitution Ieee Address Selection Talk-Back FeaturesSwitch SW1 Enabling or Disabling Talk-Back on Terminator Switch SW2 Enabling or Disabling Talk-Back on Timeout SP1PA1000,1000PDPA1000,6000PUSP0 7470APlotter Applications A PC-Based Graphics System SW3 MacPlot Configuration Screen Setting the Internal DIP Shorting Jumper for RS-422 SW3 Printer Applications Serial and Ieee Input Buffers Peripheral OperationPeripheral-Mode Operation Ieee Data Transfers Controlled BUS Data Transfers DIO8 Ieee Input Buffer not Empty Serial-Poll Status-Byte RegisterIeee Input Buffer Full RsvNot Defined-Always Serial Input Buffer not EmptyIeee 488 Bus Implementation Use of Serial and Bus TerminatorsUntalk UNT SW3 View for Ieee Address Selection General Structure Ieee 488 PrimerHistory RS-232↔IEEE 488 Interface Converter DMM Send It to My AddressBus Management Lines Data Valid DAV Handshake LinesData Lines Multiline CommandsTalk Address Group TAG More on Service Requests Serial Poll Address Device Part Number Function Theory of OperationComponent Layout of the Interface Converter’s Motherboard Board LayoutRED BLK CLS Appendix A. Sample Dumb-Terminal ProgramSOH Multiline MessagesAscii Character How To Read the ChartDIO1 DIO2 DIO3 IndexIndex SW1 Copyright 1998. Black Box Corporation. All rights reserved