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NI-488.2 Documentation
IbaSendLLO (ibask Board Configuration Option)
NI-488.2
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IbaSendLLO (ibask Board Configuration Option)
Options
(Constants)
Value
Description
IbaSendLLO
zero
The GPIB LLO command is not sent when a device is put onlineĀ
ibfind
or
ibdev
.
non-zero
The LLO command is sent.
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NI-488.2 Help
Related Documentation
Using Help
Conventions
Navigating Help
Searching Help
Printing Help File Topics
Getting Started with GPIB
Access Additional Help and Resources for GPIB
Learning More about GPIB
GPIB Overview
Setting up and Configuring Your System
Controlling More Than One Interface
Configuration Requirements
Talkers, Listeners, and Controllers
Controller-In-Charge and System Controller
GPIB Addresses
Sending Messages across the GPIB
GPIB Handshake Lines
GPIB Interface Management Lines
NI-488.2 Utilities
Troubleshooting Tools
Measurement & Automation Explorer
Reconfigure GPIB Interface Settings
NI-488.2 Communicator
Interactive Control Utility
Overview
Getting Started
Using
Status Reporting
Error Information
Count Return
Syntax Rules
Number Syntax
String Syntax
Address Syntax
Auxiliary Functions
Set Udname
Set 488.2
Help
Help <option> Interactive Control Function
! (Repeat Previous Function)
- (Turn OFF display)
+ (Turn ON display)
n * (Execute Function n Times)
n * ! (Execute Previous Function n Times)
$ (Execute Indirect File)
Buffer <option> Interactive Control Function
q (Quit)
Commands
Syntax for Board-Level Traditional NI-488.2 Calls in Interactive Control
Syntax for Device-Level Traditional NI-488.2 Calls in Interactive Control
Syntax for Multi-Device NI-488.2 Calls in Interactive Control
Analysis Tools
Application Development with NI-488.2
Choosing a Development Environment
Developing NI-488.2 Applications with LabVIEW and LabWindows/CVI
Direct Entry with C Programming Instructions
gpib-32.dll Exports
Directly Accessing the gpib-32.dll Exports
Compiling Your Win32 C Application
Language-Specific Programming Instructions
Microsoft Visual C/C++ Programming Instructions (Version 6.0 or Later)
Borland C/C++ Programming Instructions (Version 5.02 or Higher)
Visual Basic Programming Instructions (Version 6.0)
.NET Programming Instructions
General Programming Considerations
Communicating with Your Instrument
Using the NI-488.2 API
Choosing a Method to Access the NI-488.2 Driver
Differences Between the GPIB32 API and NI4882 API
Choosing How to Use the NI-488.2 API
Communicating with a Single GPIB Instrument
Communicating with Multiple Instruments and/or Multiple Interfaces
Header Files
Examples
Programming Model for Applications that Communicate with a Single GPIB Instrument
General Program Steps and Examples for Your Traditional NI-488.2 Application
Items to Include in Your Traditional NI-488.2 Application
Programming Model for Applications that Communicate with Multiple Instruments and/or Multiple Interfaces
General Program Steps and Examples for Your Multi-Device Application
Items to Include in Your Multi-Device Application
Checking Global Status After Each NI-488.2 Call
Advanced Programming Techniques
Serial Polling
Serial Polling Overview
Service Requests From Devices
Serial Polling with Device-Level Traditional NI-488.2 Calls
Serial Polling with Multi-Device NI-488.2 Calls
Example 1: Using FindRQS
Example 2: Using AllSpoll
Automatic Serial Polling Overview
Stuck SRQ State
Autopolling and Interrupts
Terminating Data Transfers
Waiting for GPIB Conditions
Multithreaded NI-488.2 Applications
Device-Level NI-488.2 Calls and Bus Management
Talker/Listener Applications
High-Speed Data Transfer (HS488)
HS488 Overview
Enabling HS488 Transfers
System Configuration Effects on HS488
Asynchronous Event Notification
Asynchronous Event Notification Overview
ibnotify Usage
GpibNotify Usage
Parallel Polling
Parallel Polling Overview
Parallel Polling with Traditional NI-488.2 Calls
Parallel Polling with Multi-Device NI-488.2 Calls
Tools for Developing Your Application
Monitoring GPIB Calls Using NI Spy
Simple Instrument Communication Using NI-488.2 Communicator
Troubleshooting Problems
Troubleshooting Tools
Troubleshooting EDVR Error Conditions
Ibcnt() Set to 0xE014002C (-535560148)
Ibcnt() Set to 0xE0140025 (-535560155)
Ibcnt() Set to 0xE0140035 (-535560139)
Ibcnt() Set to 0xE1080080 (-519569280) or 0xE1080081 (-519569279)
Ibcnt() Set to 0xE00A0047 (-536215481)
Ibcnt() Set to 0xE1030043 (-519897021)
Ibcnt() Set to 0xE1060075 (-519700363)
Ibcnt() Set to 0xE1060078 (-519700360)
Why Can't I Communicate with My GPIB Instrument?
Cannot Find Your Instrument During a Scan for Instruments
Error on a Write
Error on a Read and No Data Is Returned
Why Can't I Find My GPIB-ENET/100?
Debugging an NI-488.2 Application
Determine Whether an NI-488.2 Call Failed
Checking Global Status Functions to Debug Your Application
Checking Global Status After Each NI-488.2 Call
Ibsta() or ibsta Status Bit Values
ATN Status Condition
CIC Status Condition
CMPL Status Condition
DCAS Status Condition
DTAS Status Condition
END Status Condition
ERR Status Condition
LACS Status Condition
LOK Status Condition
REM Status Condition
RQS Status Condition
SRQI Status Condition
TACS Status Condition
TIMO Status Condition
Debugging Existing Applications
Solving Errors
Iberr() or iberr Error Codes and Solutions
EABO
EADR
EARG
EARM
EBUS
ECAP
ECIC
EDMA
EDVR
EFSO
EHDL
ELCK
ENEB
ENOL
EOIP
EPWR
ERST
ESAC
ESRQ
ETAB
EWIP
Configuration Errors
Communication Errors
Timing Errors
Other Errors
How to
Add a New GPIB Interface
Remove a GPIB Interface
Scan for GPIB Instruments
View GPIB Instrument Information
Communicate with a GPIB Instrument
Set Network Settings for the GPIB-ENET/100
Use Static IP Address Settings Suggested for the GPIB-ENET/100
Static IP Parameters
View NI-488.2 Software Version
Enable/Disable NI-488.2 DOS Support
Require Administrator Privileges
Access Additional Help and Resources for GPIB
Frequently Asked Questions
How do I get error information about failed NI-488 calls?
Iberr() or iberr Error Codes and Solutions
Ibsta() or ibsta Status Bit Values
How do I communicate with my instrument?
How do I change a GPIB device template?
How can I NULL terminate an ASCII response from my instrument?
Are interrupts required for the NI-488.2 software?
Is DMA required for the NI-488.2 software?
Is my instrument 488.1 or 488.2 compliant?
How can I determine which type of GPIB hardware I have installed?
How do I use an NI-488.2 application interface?
Function Reference
Traditional NI-488.2 Calls
Board-Level
Device-Level
IBASK
ibask Board Configuration Parameter Options
IbaAUTOPOLL
IbaDMA
IbaEndBitIsNormal
IbaEOS
IbaEOSchar
IbaEOScmp
IbaEOSrd
IbaEOSwrt
IbaEOT
IbaHSCableLength
IbaIRQ
IbaIst
IbaLON
IbaPAD
IbaPP2
IbaPPC
IbaPPollTime
IbaRsv
IbaSAD
IbaSC
IbaSendLLO
IbaSRE
IbaTIMING
IbaTMO
ibask Device Configuration Parameter Options
IbaEOS
IbaEOSchar
IbaEOScmp
IbaEOSrd
IbaEOSwrt
IbaEOT
IbaPAD
IbaREADDR
IbaSAD
IbaSPollTime
IbaTMO
IbaUnAddr
IBCAC
IBCLR
IBCMD
IBCMDA
IBCONFIG
ibconfig Board Configuration Parameter Options
IbcAUTOPOLL
IbcDMA
IbcEndBitIsNormal
IbcEOS
IbcEOSchar
IbcEOScmp
IbcEOSrd
IbcEOSwrt
IbcEOT
IbcHSCableLength
IbcIRQ
IbcIst
IbcLON
IbcPAD
IbcPP2
IbcPPC
IbcPPollTime
IbcRsv
IbcSAD
IbcSC
IbcSendLLO
IbcSRE
IbcTIMING
IbcTMO
ibconfig Device Configuration Parameter Options
IbcEOS
IbcEOSchar
IbcEOScmp
IbcEOSrd
IbcEOSwrt
IbcEOT
IbcPAD
IbcREADDR
IbcSAD
IbcSPollTime
IbcTMO
IbcUnAddr
IBDEV
IBDMA
IBEOS
IBEOT
IBFIND
IBGTS
IBIST
IBLCK
IBLINES
IBLN
IBLOC
IBNOTIFY
ibnotify Usage
ibnotify Usage Example
Notify Mask Layout
GpibNotify
GpibNotify Usage
IBONL
IBPAD
IBPCT
IBPPC
IBRD
IBRDA
IBRDF
IBRPP
IBRSC
IBRSP
IBRSV
IBSAD
IBSIC
IBSRE
IBSTOP
IBTMO
Timeout Code Values
IBTRG
IBWAIT
Wait Mask Layout
IBWRT
IBWRTA
IBWRTF
Multi-Device NI-488.2 Calls
AllSpoll
DevClear
DevClearList
EnableLocal
EnableRemote
FindLstn
FindRQS
PassControl
PPoll
PPollConfig
PPollUnconfig
RcvRespMsg
ReadStatusByte
Receive
ReceiveSetup
ResetSys
Send
SendCmds
SendDataBytes
SendIFC
SendList
SendLLO
SendSetup
SetRWLS
TestSRQ
TestSys
Trigger
TriggerList
WaitSRQ
Supplemental Calls for Multithreaded NI-488.2 Applications
ThreadIbcnt
ThreadIberr
ThreadIbsta
IEEE 488 Command Messages
Multiline Interface Message Definitions
Glossary
Important Information
Warranty
Copyright
Trademarks
Patents
Warning Regarding the Use of NI Products
Technical Support and Professional Services
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