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VISA
NI-VISA
TM
Programmer
Reference Manual
NI-VISA Programmer Reference Manual
March 2003 Edition
Part Number 370132C-01
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™
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™
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™
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™
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™
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™
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™
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™
, NI-Motion
™
,
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™
, and NI-VXI
™
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© National Instruments Corporation v NI-VISA Programmer Reference Manual
Contents
About This Manual
How to Use the Manual Set ...........................................................................................xiii
Conventions ...................................................................................................................xiii
Related Documentation..................................................................................................xiv
Chapter 1
Introduction
What You Need to Get Started ......................................................................................1-1
VXIplug&play Overview ..............................................................................................1-1
Supported Platforms ......................................................................................................1-2
Chapter 2
Overview of the VISA API
VISA Access Mechanisms.............................................................................................2-1
Attributes .........................................................................................................2-1
Events ..............................................................................................................2-1
Operations........................................................................................................2-2
VISA Resource Types ...................................................................................................2-2
INSTR..............................................................................................................2-2
MEMACC .......................................................................................................2-3
INTFC..............................................................................................................2-4
BACKPLANE .................................................................................................2-4
SERVANT.......................................................................................................2-4
SOCKET..........................................................................................................2-5
RAW................................................................................................................2-5
Description of the API ...................................................................................................2-6
Chapter 3
Attributes
VI_ATTR_4882_COMPLIANT ...................................................................................3-2
VI_ATTR_ASRL_ALLOW_TRANSMIT....................................................................3-3
VI_ATTR_ASRL_AVAIL_NUM.................................................................................3-4
VI_ATTR_ASRL_BAUD .............................................................................................3-5
VI_ATTR_ASRL_BREAK_LEN .................................................................................3-6
VI_ATTR_ASRL_BREAK_STATE.............................................................................3-7
VI_ATTR_ASRL_CTS_STATE...................................................................................3-8
VI_ATTR_ASRL_DATA_BITS...................................................................................3-9
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Contents
NI-VISA Programmer Reference Manual vi ni.com
VI_ATTR_ASRL_DCD_STATE ................................................................................. 3-10
VI_ATTR_ASRL_DISCARD_NULL .......................................................................... 3-11
VI_ATTR_ASRL_DSR_STATE .................................................................................. 3-12
VI_ATTR_ASRL_DTR_STATE.................................................................................. 3-13
VI_ATTR_ASRL_END_IN.......................................................................................... 3-14
VI_ATTR_ASRL_END_OUT...................................................................................... 3-15
VI_ATTR_ASRL_FLOW_CNTRL.............................................................................. 3-16
VI_ATTR_ASRL_PARITY.......................................................................................... 3-18
VI_ATTR_ASRL_REPLACE_CHAR ......................................................................... 3-19
VI_ATTR_ASRL_RI_STATE...................................................................................... 3-20
VI_ATTR_ASRL_RTS_STATE .................................................................................. 3-21
VI_ATTR_ASRL_STOP_BITS.................................................................................... 3-22
VI_ATTR_ASRL_WIRE_MODE ................................................................................ 3-23
VI_ATTR_ASRL_XOFF_CHAR................................................................................. 3-24
VI_ATTR_ASRL_XON_CHAR .................................................................................. 3-25
VI_ATTR_BUFFER ..................................................................................................... 3-26
VI_ATTR_CMDR_LA ................................................................................................. 3-27
VI_ATTR_DEST_ACCESS_PRIV .............................................................................. 3-28
VI_ATTR_DEST_BYTE_ORDER .............................................................................. 3-29
VI_ATTR_DEST_INCREMENT ................................................................................. 3-30
VI_ATTR_DEV_STATUS_BYTE............................................................................... 3-31
VI_ATTR_DMA_ALLOW_EN ................................................................................... 3-32
VI_ATTR_EVENT_TYPE ........................................................................................... 3-33
VI_ATTR_FDC_CHNL................................................................................................ 3-34
VI_ATTR_FDC_MODE............................................................................................... 3-35
VI_ATTR_FDC_USE_PAIR ........................................................................................ 3-36
VI_ATTR_FILE_APPEND_EN ................................................................................... 3-37
VI_ATTR_GPIB_ADDR_STATE................................................................................ 3-38
VI_ATTR_GPIB_ATN_STATE................................................................................... 3-39
VI_ATTR_GPIB_CIC_STATE .................................................................................... 3-40
VI_ATTR_GPIB_HS488_CBL_LEN........................................................................... 3-41
VI_ATTR_GPIB_NDAC_STATE................................................................................ 3-42
VI_ATTR_GPIB_PRIMARY_ADDR.......................................................................... 3-43
VI_ATTR_GPIB_READDR_EN.................................................................................. 3-44
VI_ATTR_GPIB_RECV_CIC_STATE........................................................................ 3-45
VI_ATTR_GPIB_REN_STATE................................................................................... 3-46
VI_ATTR_GPIB_SECONDARY_ADDR.................................................................... 3-47
VI_ATTR_GPIB_SRQ_STATE ................................................................................... 3-48
VI_ATTR_GPIB_SYS_CNTRL_STATE .................................................................... 3-49
VI_ATTR_GPIB_UNADDR_EN................................................................................. 3-50
VI_ATTR_IMMEDIATE_SERV ................................................................................. 3-51
VI_ATTR_INTF_INST_NAME................................................................................... 3-52
VI_ATTR_INTF_NUM ................................................................................................ 3-53
VI_ATTR_INTF_PARENT_NUM............................................................................... 3-54
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