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i.LON 100 Internet Server Programmer’s Reference 14-7
s = s & units.Current.Value() & "', '"
Dim statuses As System.Xml.XPath.XpathNodeIterator
dataValues = xmlNav.Select("/iLONDataLogger/Log/Element/UCPTvalue")
timestamps = xmlNav.Select("/iLONDataLogger/Log/Element/UCPTlogTime")
pointNames = xmlNav.Select("/iLONDataLogger/Log/Element/UCPTpointName")
locations = xmlNav.Select("/iLONDataLogger/Log/Element/UCPTlocation")
address=xmlNav.Select("/iLONDataLogger/Log/Element/UCPTlogSourceAddress")
units = xmlNav.Select("/iLONDataLogger/Log/Element/UCPTunit")
statuses = xmlNav.Select("/iLONDataLogger/Log/Element/UCPTpointStatus")
'Process through the XML string returned by the function, and add each
'property to the SQL data table.
While (dataValues.MoveNext())
timestamps.MoveNext()
pointNames.MoveNext()
locations.MoveNext()
address.MoveNext()
units.MoveNext()
statuses.MoveNext()
s = "insert VACOMLOG (timestamp, unit, pointname, value, _
location, address, status) "
s = s & " values('" & timestamps.Current.Value() & "', '"
s = s & pointNames.Current.Value() & "', '"
s = s & dataValues.Current.Value() & "', '"
s = s & locations.Current.Value() & "', '"
s = s & address.Current.Value() & "', '"
s = s & statuses.Current.Value() & "')"
sqlCmd.CommandText = s
sqlCmd.ExecuteNonQuery()
printf(dataValues.Current.Value() & " " & _
timestamps.Current.Value())
End While
14.2.3 Using DataSets
The following subroutine uses DataSets to construct the input to be supplied to the
DataServerRead function. Using DataSets to construct your XML strings provides several
advantages.
It allows you to assign each property defined in the input string a variable type. This may be
useful if you want to restrict the values a user can assign for a certain property. For example,
by storing the value to be assigned a property like <UCPTminDeltaTime> in an Integer
variable, you could limit the values that could be assigned to that property to numbers. In
Visual Basic .NET, types such as UINT16 can further help restrict the user by enforcing user
defined minimum and maximums.
Similarly, by storing the string to be assigned to the <UCPTdescription> on a String
variable, you could limit the length of that description. Generally, using types reduces the
chance of errors occurring in your SOAP message. For example, a user could not attempt to
pass in a string containing letters as the value for an index number, or any other property
that requires an integer as its value type. In addition, performing error checking in your
application will provide responsive error handling.
- 100 e2 Internet 1
- Server Programmer’s 1
- Reference 1
- ONWORLD, ShortStack 2
- ONMARK logo are 2
- ONMARK Powered by Echelon 2
- Table Of Contents 3
- 1.1 About This Document 6
- 1.2 Programming Samples 7
- 1.3 Getting Started 7
- 2.1 i.LON 100 WSDL File 12
- 2.2 Security 12
- 2.3.1.1 SOAP Envelope 13
- 2.3.1.2 SOAP Body 14
- 2.3.2.1 SOAP Header 15
- 2.3.3 SOAP Error Responses 16
- SOAP/XML Interface 18
- 3.2 About This Chapter 19
- 3.3 DataPointWrite 20
- <UCPTfieldName> 21
- <UCPTvalueDef> 21
- <UCPTpriority> 21
- <UCPTpropagate> 22
- 3.4 DataPointRead 24
- <UCPTlocation> 25
- <UCPTpointUpdateTime> 25
- <UCPTvalue> 25
- 3.5 DataPointResetPriority 27
- 3.6.1 DataPointWrite 28
- 3.6.2 DataPointRead 28
- 3.6.3 DataPointResetPriority 28
- 3.6.4 Programming Samples 29
- 4.3.1 <Data> Parameter 35
- Resource Files 38
- 4.5 Data Formatting 40
- 4.6.1 List Functions 41
- 4.6.2 Get Functions 41
- 4.6.3 Set Functions 41
- 4.6.4 Delete Functions 42
- 4.7 Performance Issues 43
- 4.8 Getting Started 44
- 5 Data Server 45
- ONMAKER, as well as the 46
- 5.1 Data Server XML Files 48
- 5.1.1 DP_NVL.XML 49
- 5.1.2 DP_NVC.XML 51
- 5.2.1.1 DataServerList 54
- 5.2.1.2 DataServerGet 56
- <UCPTunit> 58
- <UCPTbaseType> 58
- <UCPTdpSize> 58
- <SCPTmaxSendTime> 58
- <SCPTminSendTime> 59
- <SCPTmaxRcvTime> 59
- <UCPTdefOutput> 59
- <UCPTminValue> 59
- <UCPTmaxValue> 60
- <UCPTinvalidValue> 60
- <UCPTsettings> 60
- 5.2.1.3 DataServerSet 61
- <Data> 62
- 5.2.1.4 DataServerRead 63
- 5.2.1.5 DataServerWrite 68
- 5.2.1.7 DataServerDelete 72
- 6 Data Loggers 73
- 6.2.1.1 DataLoggerList 77
- 6.2.1.2 DataLoggerGet 78
- ONMAKER. You can 79
- <UCPTlogLevelAlarm> 80
- <UCPTlogMinDeltaTime> 80
- <UCPTlogMinDeltaValue> 81
- <UCPTpollRate> 81
- 6.2.1.3 DataLoggerSet 82
- 6.2.1.4 DataLoggerRead 83
- 6.2.1.5 DataLoggerClear 87
- 6.2.1.6 DataLoggerDelete 89
- 7 Alarm Generator 90
- 7.1 AlarmGenerator.XML 91
- 7.2.1.1 AlarmGeneratorList 93
- 7.2.1.2 AlarmGeneratorGet 94
- <SCPTalrmIhbT> 95
- <UCPTalarmPriority> 96
- <InputDataPoint> 97
- <AlarmDataPoint> 98
- <Alarm2DataPoint> 98
- <UCPTcompFunction> 98
- <UCPTalarmSetTime> 98
- <SCPThystHigh1> 100
- <SCPThystHigh2> 100
- <SCPThystLow1> 100
- <SCPThystLow2> 100
- on page 7-13 101
- <UCPThighLimit2Offset> 103
- <UCPTlowLimit1Offset> 103
- <UCPTlowLimit2Offset> 103
- <UCPThighLimit1Offset> 103
- 7.2.1.3 AlarmGeneratorSet 105
- 7.2.1.4 AlarmGeneratorDelete 106
- 8 Alarm Notifier 107
- 8.1 AlarmNotifier.XML 108
- 8.2.1.1 AlarmNotifierList 111
- 8.2.1.2 AlarmNotifierGet 112
- ONMAKER 114
- <UCPThistLogSize> 115
- <UCPTlogFormat> 115
- <UCPTemailAggregTime> 115
- <Point> 115
- <Mail> 115
- 8.2.1.2.1 Input Data Points 116
- <UCPTindex> 117
- <UCPTpointName> 117
- <UCPTalarmFlags> 118
- 8.2.1.2.2 E-mail Profiles 119
- <UCPTnackDelay> 124
- 8.2.1.3 AlarmNotifierSet 125
- 8.2.1.4 AlarmNotifierRead 126
- <UCPTalarmLog> 127
- <UCPTcount> 127
- <UCPTstart> 128
- <UCPTstop> 128
- 8.2.1.5 AlarmNotifierWrite 132
- 8.2.1.6 AlarmNotifierClear 135
- 8.2.1.7 AlarmNotifierDelete 137
- 9 Analog Function Block 138
- 9.2.1.1 AnalogFBList 141
- 9.2.1.2 AnalogFBGet 142
- <UCPTlastUpdate> 143
- <UCPTdescription> 143
- <UCPTfbName> 143
- <SCPTovrValue> 145
- <UCPTpollOnResetDelay> 145
- <SCPTovrBehave> 145
- <CompareDataPoint> 146
- 9.2.1.2.1 Output Functions 147
- 9.2.1.2.3 FN_AND Example 148
- 9.2.1.2.4 FN_OR Example 149
- 9.2.1.2.5 FN_COMPARE Example 149
- 9.2.1.3 AnalogFBSet 151
- 9.2.1.4 AnalogFBDelete 152
- 10 Event Scheduler 153
- 10.1 EventScheduler.XML 154
- 10.2.1.1 EventSchedulerList 157
- 10.2.1.2 EventSchedulerGet 158
- <DayBased> 161
- <DateBased> 161
- 10.2.1.3 EventSchedulerSet 165
- <Result> 166
- Parameter 166
- 11 Event Calendar 168
- 11.2.1.1 EventCalendarList 171
- 11.2.1.2 EventCalendarGet 172
- <Exceptions> 173
- <UCPTexceptionName> 174
- <UCPTtemporary> 174
- 11.2.1.3 EventCalendarSet 179
- 11.2.1.4 EventCalendarDelete 180
- 12 Type Translator 181
- 12.2.1.1 TypeTranslatorList 184
- 12.2.1.2 TypeTranslatorGet 185
- <UCPTTranslatorRule> 186
- <SCPTdelayTime> 187
- <InDataPoint> 187
- <OutDataPoint> 187
- SET_STATE 0 0 189
- SET_STATE 25 0 189
- SET_STATE 50 0 190
- SET_STATE 75 0 190
- 12.2.1.3 TypeTranslatorSet 192
- 13 Type Translator Rules 194
- <UCPTtranslatorRule> 199
- <Case> 200
- 13.2.1.2.1.1 Case Rules 202
- <UCPTmultiplier> 204
- <UCPTconstant> 204
- 14.2 Programming Samples 210
- 14.2.2.2 Reading Data Logs 213
- 14.2.3 Using DataSets 214
- 14.2.3.2 Wrapping Elements 216
- 15.1 Creating an XML File 220
- 15.2 Modifying an XML File 220
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