问题探讨：Serial Parity Issues with VISA Read
http://forums.ni.com/t5/LabVIEW/Serial-Parity-Issues-with-VISA-Read/td-p/276492;jsessionid=5B6F878097972FC3230CDCEEA8AEC4F4这个上面讲的很不错
C:\Documents and Settings\All Users\Application Data\National Instruments\NIvisa
编辑 ini文件
MinAsyncCount = 512
SharedMemSize = 262144
MaxNumResources = 512
NumSystemSems = 512
NumProcessSems = 512
UnloadPassports = 0
ShowRegisteredDevOnly = 1
StartDebug = 0
DisableAutoFind = 0
RetryAfterFailure = 1
DisableIbListen = 0
SRQPollTime = 500
EnetConnectTmoSec = 6
AllBoardsEnabled = 1
UseAgilentVisa = 1
NativeTypesOnly = 1
SynchronizeAllVxi = 0
SynchronizeAllGpib = 1
Interface0 = 1
Interface1 = 1
Interface2 = 1
Interface3 = 1
Interface4 = 1
Interface5 = 1
Interface6 = 1
Interface7 = 1
Interface8 = 1
Interface9 = 1
Interface10 = 1
Interface11 = 1
Interface12 = 1
Interface13 = 1
Interface14 = 1
Interface15 = 1
Interface16 = 1
Interface17 = 1
Interface18 = 1
Interface19 = 1
Interface20 = 1
Interface21 = 1
Interface22 = 1
Interface23 = 1
Interface24 = 1
Interface25 = 1
Interface26 = 1
Interface27 = 1
Interface28 = 1
Interface29 = 1
Interface30 = 1
Interface31 = 1
Interface32 = 1
Interface33 = 1
Interface34 = 1
Interface35 = 1
Interface36 = 1
Interface37 = 1
Interface38 = 1
Interface39 = 1
Interface40 = 1
Interface41 = 1
Interface42 = 1
Interface43 = 1
Interface44 = 1
Interface45 = 1
Interface46 = 1
Interface47 = 1
Interface48 = 1
Interface49 = 1
Interface50 = 1
Interface51 = 1
Interface52 = 1
Interface53 = 1
Interface54 = 1
Interface55 = 1
Interface56 = 1
Interface57 = 1
Interface58 = 1
Interface59 = 1
Interface60 = 1
Interface61 = 1
Interface62 = 1
Interface63 = 1
Interface64 = 1
Interface65 = 1
Interface66 = 1
Interface67 = 1
Interface68 = 1
Interface69 = 1
Interface70 = 1
Interface71 = 1
Interface72 = 1
Interface73 = 1
Interface74 = 1
Interface75 = 1
Interface76 = 1
Interface77 = 1
Interface78 = 1
Interface79 = 1
Interface80 = 1
Interface81 = 1
Interface82 = 1
Interface83 = 1
Interface84 = 1
Interface85 = 1
Interface86 = 1
Interface87 = 1
Interface88 = 1
Interface89 = 1
Interface90 = 1
Interface91 = 1
Interface92 = 1
Interface93 = 1
Interface94 = 1
Interface95 = 1
Interface96 = 1
Interface97 = 1
Interface98 = 1
Interface99 = 1
Interface100 = 1
Interface101 = 1
Interface102 = 1
Interface103 = 1
Interface104 = 1
Interface105 = 1
Interface106 = 1
Interface107 = 1
Interface108 = 1
Interface109 = 1
Interface110 = 1
Interface111 = 1
Interface112 = 1
Interface113 = 1
Interface114 = 1
Interface115 = 1
Interface116 = 1
Interface117 = 1
Interface118 = 1
Interface119 = 1
Interface120 = 1
Interface121 = 1
Interface122 = 1
Interface123 = 1
Interface124 = 1
Interface125 = 1
Interface126 = 1
Interface127 = 1
Interface128 = 1
Interface129 = 1
Interface130 = 1
Interface131 = 1
Interface132 = 1
Interface133 = 1
Interface134 = 1
Interface135 = 1
Interface136 = 1
Interface137 = 1
Interface138 = 1
Interface139 = 1
Interface140 = 1
Interface141 = 1
Interface142 = 1
Interface143 = 1
Interface144 = 1
Interface145 = 1
Interface146 = 1
Interface147 = 1
Interface148 = 1
Interface149 = 1
Interface150 = 1
Interface151 = 1
Interface152 = 1
Interface153 = 1
Interface154 = 1
Interface155 = 1
Interface156 = 1
Interface157 = 1
Interface158 = 1
Interface159 = 1
Interface160 = 1
Interface161 = 1
Interface162 = 1
Interface163 = 1
Interface164 = 1
Interface165 = 1
Interface166 = 1
Interface167 = 1
Interface168 = 1
Interface169 = 1
Interface170 = 1
Interface171 = 1
Interface172 = 1
Interface173 = 1
Interface174 = 1
Interface175 = 1
Interface176 = 1
Interface177 = 1
Interface178 = 1
Interface179 = 1
Interface180 = 1
Interface181 = 1
Interface182 = 1
Interface183 = 1
Interface184 = 1
Interface185 = 1
Interface186 = 1
Interface187 = 1
Interface188 = 1
Interface189 = 1
Interface190 = 1
Interface191 = 1
Interface192 = 1
Interface193 = 1
Interface194 = 1
Interface195 = 1
Interface196 = 1
Interface197 = 1
Interface198 = 1
Interface199 = 1
Interface200 = 1
Interface201 = 1
Interface202 = 1
Interface203 = 1
Interface204 = 1
Interface205 = 1
Interface206 = 1
Interface207 = 1
Interface208 = 1
Interface209 = 1
Interface210 = 1
Interface211 = 1
Interface212 = 1
Interface213 = 1
Interface214 = 1
Interface215 = 1
Interface216 = 1
Interface217 = 1
Interface218 = 1
Interface219 = 1
Interface220 = 1
Interface221 = 1
Interface222 = 1
Interface223 = 1
Interface224 = 1
Interface225 = 1
Interface226 = 1
Interface227 = 1
Interface228 = 1
Interface229 = 1
Interface230 = 1
Interface231 = 1
Interface232 = 1
Interface233 = 1
Interface234 = 1
Interface235 = 1
Interface236 = 1
Interface237 = 1
Interface238 = 1
Interface239 = 1
Interface240 = 1
Interface241 = 1
Interface242 = 1
Interface243 = 1
Interface244 = 1
Interface245 = 1
Interface246 = 1
Interface247 = 1
Interface248 = 1
Interface249 = 1
Interface250 = 1
Interface251 = 1
Interface252 = 1
Interface253 = 1
Interface254 = 1
Interface255 = 1
ShowRegisteredDevOnly = 0
Server0 = "192.168.1.5"
ServerEnabled0 = 1
Port0 = 3537
NumServers = 1
SynchronizeAllSocket = 0
SynchronizeAllVxi11 = 1
NumOfResources = 0
DisableErrorReplacement=1
Name0 = "ASRL10::INSTR"
Enabled0 = 1
Static0 = 1
SystemName0 = "LPT1"
BaudRate0 = 9600
DataBits0 = 8
Parity0 = 0
StopBits0 = 10
FlowCtrl0 = 0
Name1 = "ASRL1::INSTR"
Enabled1 = 1
Static1 = 0
SystemName1 = "COM1"
BaudRate1 = 9600
DataBits1 = 8
Parity1 = 0
StopBits1 = 10
FlowCtrl1 = 0
Name2 = "ASRL2::INSTR"
Enabled2 = 1
Static2 = 0
SystemName2 = "LPTDOG1"
BaudRate2 = 9600
DataBits2 = 8
Parity2 = 0
StopBits2 = 10
FlowCtrl2 = 0
Name3 = "ASRL3::INSTR"
Enabled3 = 1
Static3 = 0
SystemName3 = "LPTMH1"
BaudRate3 = 9600
DataBits3 = 8
Parity3 = 0
StopBits3 = 10
FlowCtrl3 = 0
Name4 = "ASRL4::INSTR"
Enabled4 = 1
Static4 = 0
SystemName4 = "COM2"
BaudRate4 = 9600
DataBits4 = 8
Parity4 = 0
StopBits4 = 10
FlowCtrl4 = 0
Name5 = "ASRL5::INSTR"
Enabled5 = 1
Static5 = 0
SystemName5 = "COM3"
BaudRate5 = 9600
DataBits5 = 8
Parity5 = 0
StopBits5 = 10
FlowCtrl5 = 0
NumOfResources = 6
Alias0 = "'LPT1','ASRL10::INSTR'"
Alias1 = "'COM1','ASRL1::INSTR'"
Alias2 = "'LPTDOG1','ASRL2::INSTR'"
Alias3 = "'LPTMH1','ASRL3::INSTR'"
Alias4 = "'COM2','ASRL4::INSTR'"
Alias5 = "'COM3','ASRL5::INSTR'"
NumAliases = 6
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