Echelon i.LON SmartServer Technical Information download pdf (Page 79)

i.LON SmartServer 2.0 Programmer’s Reference

6-1

6 Alarm Generator

Use the Alarm Generator application to generate alarms based on the values of the data points in your

network. Each time you create an Alarm Generator, you will select an input data point and a compare

data point. The Alarm Generator will compare the values of these data points each time either one is

updated. You will select the function the Alarm Generator will use to make the comparison. If the

result of the comparison is true, an alarm will be generated, and the status (UCPTpointStatus) of the

input data point will be updated to an alarm condition.

For example, you could select GreaterThan as the comparison function. The Alarm Generator would

generate an alarm each time either data point is updated, and the value of the input data point is greater

than the value of the compare data point. The Alarm Generator application includes many other

comparison functions like this, such as Less Than, Less Than or Equal, Greater Than or Equal, Equal,

and Null. Each comparison function is described in detail later in the chapter.

The Alarm Generator application also includes a comparison function called Limits. When you select

this comparison function, you will specify four offset limits for the Alarm Generator. The four offset

limits allow you to generate alarms based on how much the value of the input data point exceeds, or is

exceeded by, the value of the compare data point. If the compare or input data points are updated, and

the difference between their values exceeds any of the offset limits, an alarm will be generated.

You will define a hysteresis level for each alarm offset limit when you use the Limits comparison

function. After an alarm has been generated based on an offset limit, the value of the input data point

must return to the hysteresis level defined for that offset limit before the alarm clears, and before

another alarm can be generated based on that offset limit. As a result, the Alarm Generator will not

generate an additional alarm each time the input data point is updated after it reaches an alarm

condition, but before it has returned to a normal condition. The relationship between the offset values,

hysteresis levels, and alarm data points is described in more detail in the following sections.

All of the comparison functions have features like this that will allow you to throttle alarm generation.

You can specify an interval <UCPTalarmSetTime> that must elapse between alarm generations for a

data point. You can also define an interval <UCPTalarmClrTime> that must elapse after an alarm has

returned to normal status before that alarm will be cleared. These features prevent the Alarm

Generator from triggering multiple alarms each time the input data point reaches an alarm condition.

You can optionally select up to two alarm data points for each Alarm Generator, one of type

SNVT_alarm and one of type SNVT_alarm2. The <UCPTpointStatus> of these data points, and of

the input data point, will be updated to an alarm condition each time the Alarm Generator generates an

alarm. The alarm data points are described in more detail later in the chapter.

You can use the Alarm Notifier application to generate e-mail messages when the alarm and input data

points are updated to alarm conditions. For more information on this, see Chapter 7,

Alarm Notifier.

6.1

Overview of the Alarm Generator XML File

The #8000010128000000[4].UFPTalarmGenerator.xml file stores the configuration of the Alarm

Generators that you have added to the SmartServer. Each Alarm Generator is signified by an <Item>

element in the XML file.

You can create new Alarm Generators using the Set function, or by manually editing the

#8000010128000000[4].UFPTalarmGenerator.xml file, and rebooting the SmartServer. You can

create up to 40 Alarm Generators per SmartServer. You can add more than 40 Alarm Generators if

you load the dynamic v40 XIF on your SmartServer and you operate your SmartServer in Standalone

mode. Note that using the v40 XIF with the SmartServer operating in LNS mode (LNS Auto or LNS

Manual) is not supported.

The following represents a sample #8000010128000000[4].UFPTalarmGenerator.xml file with one

Alarm Generator.

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 442 443

SmartServer 2.0 1
Programmer's Reference 1
Table of Contents 3
viii 8
About This Document 11
Programming Samples 12
Getting Started 12
SmartServer WSDL File 16
Security 16
SOAP Request 17
SOAP Messages Formats 18
SOAP Header 19
SOAP Envelope 19
SOAP Body 20
2.5.3.3 Error Codes 22
Namespace 23
SOAP Message Schema 23
SOAP Function Types 23
2-10 24
2-11 25
2-12 26
2-13 27
2-14 28
2-15 29
2-16 30
2-17 31
2-18 32
2-19 33
Interface 34
SmartServer Resource Files 36
Data Point Templates 37
Data Formatting 37
SOAP Functions 38
Get Functions 39
Set Functions 39
Performance Issues 40
ONWORKS devices connected to 42
Data Server SOAP Interface 45
4-10 51
4-11 52
4-12 53
4-13 54
4-14 55
4-15 56
4-16 57
4-17 58
4-18 59
4-19 60
4-20 61
4-21 62
4-22 63
4-23 64
4-24 65
5 Data Loggers 66
Data Logger SOAP Interface 68
<UCPTlogType> 71
<UCPTlogSize> 71
<UCPTlogFormat> 71
<UCPTlogLevelAlarm> 71
5-10 75
5-11 76
5-12 77
5-13 78
6 Alarm Generator 79
<UCPTitemStatus> 82
SNVT_alarm Output 86
SNVT_alarm2 Output 86
6-10 88
6-11 89
6-12 90
6-13 91
6-14 92
7 Alarm Notifier 93
<DataPoint> 100
<Mail> 100
<ActiveAlarm> 100
<PassiveAlarm> 100
7.3.2.1 Input Data Points 101
7-10 102
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7-26 118
8 Analog Function Block 119
Compare 123
<UCPTcompFunction> 124
<UCPTmajorityValue> 124
<UCPTtrueThreshold> 124
8.3.2.1 Output Functions 126
8-10 128
8-11 129
8-12 130
8-13 131
9 Scheduler 132
Scheduler SOAP Interface 134
</GetResponse> 137
<DayBased> 138
<DateBased> 138
9-10 141
9-11 142
9-12 143
9-13 144
9-14 145
9-15 146
9-16 147
9-17 148
9-18 149
10-1 150
10 Calendar 150
10-2 151
10-3 153
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10-6 156
10-7 157
10-8 158
10-9 159
10-10 160
10-11 161
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10-16 166
11-1 167
11 Real-Time Clock 167
11-2 168
11-3 169
11-4 170
11-5 171
11-6 172
12-1 173
12 Type Translator 173
12-2 174
12-3 175
12-4 176
12-5 177
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12-7 179
12-8 180
12-9 181
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13-1 189
13 Type Translator Rules 189
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13-4 192
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13-7 195
13-8 196
13-9 197
13-10 198
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13-12 200
14-1 201
WORKS Driver 201
14-2 202
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14-49 249
15 Modbus Driver 250
<UCPTname> 251
<UCPTannotation> 251
<UCPThidden> 251
<UCPTlastUpdate> 251
<UCPTdescription> 252
<UCPTuri> 252
<UCPThandle> 252
<UCPTchannelType> 252
<UCPTport> 252
<InterfaceOptions> 253
<UCPTserialMode> 254
<UCPTretryCount> 254
<UCPTminOfflineTime> 254
15-7 256
15-8 257
15-9 258
15-10 259
15-11 260
15-12 261
15-13 262
15-14 263
15-15 264
15-16 265
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16-1 268
16 M-Bus Driver 268
16-2 269
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16-6 273
16-7 274
16-8 275
16-9 276
16-10 277
16-11 278
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16-15 282
16-16 283
17-1 284
17 Virtual Driver 284
17-2 285
17-3 286
17-4 287
17-5 288
17-6 289
17-7 290
17-8 291
17-9 292
17-10 293
17-11 294
17-12 295
18-1 296
18 File System Data 296
18-2 297
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18-5 300
19-1 301
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19-4 304
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21-1 353
21 Programming Examples 353
21-2 354
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Installing Maven 2.2.1 406
Creating a JAX-WS Client 408
22-10 415
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<UCPTvalue 442

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Echelon i.LON SmartServer Technical Information Page 79

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