For SmartServer 3.2 and higher, see Defining Datapoint Properties. |
You can create, view, and edit monitoring, logging, and alarming properties for datapoints. You can use the Datapoint Properties widget to define the datapoint properties, you can export the datapoint property definitions to a datapoint logging and alarming (DLA) file with a .dla extension, and you can import the DLA file to other SmartServers. You can also manually create a DLA file.
Users with Administrator, Owner, Controller, or Tenant roles can use the Datapoint Properties widget to create and modify datapoint properties where they have the Administrator, Owner, Controller, or Tenant roles.
This section consists of the following:
Note: Click the fullscreen icon ( ![]() |
To show the unconfigured datapoints, click the action icon () on the Device Properties widget and select Show Unconfigured Datapoints.
The unconfigured datapoints appear on the Datapoint Properties widget displaying the following:
Device type – the device type name
Block name – the block name
Block index – blocks with the same type are sequentially numbered, starting at 0 for the first block
Datapoint – the datapoint name
Monitored – indicates that monitoring is configured for the datapoint
Logged – indicates that logging is configured for at least one log for the datapoint
Alarmed – indicates that at least one alarm or warning is configured for the datapoint
Each heading has a forward/reverse sort icon. When clicked, the datapoint list is sorted in forward or reverse order by the selected heading.
Total Logged Bytes – displays the estimated logged bytes per day
Data Annual Log Size – displays the estimated log size after 1 year in Megabytes (MB)
To hide the unconfigured datapoints, click the action icon () on the Device Properties widget and select Hide Unconfigured Datapoints.
The unconfigured datapoints no longer appear.
You can set filters on the Device Properties widget to refine information that is displayed.
Go to the following sections to edit datapoint properties: INFO, MONITORING AND LOGGING CONFIGURATION, ALARM TYPE CONFIGURATION, PRESET DEFINITIONS, or LOCALIZATION.
Note: Using presets and localization in datapoints is optional. A datapoint can have presets only, localization only, both presets and localization, or neither. When both presets and localization are used, the presets map are typically configured based on the localization value. Therefore, when an update is received, the value needs to be localized first before mapping to a preset string. And, when a preset string is entered, the map value needs to be transformed using the revert transformation rule to get the native value. |
Protocol – read-only field with LON, Modbus, BACnet, and IAP values
Device Type – read-only field with device type name
From the MONITORING AND LOGGING CONFIGURATION tab, set the parameters as needed including the following:
Note: The Total Monitoring Traffic Indicator above the Datapoint Properties widget displays an estimate of the expected monitoring events per second (EPS) based on the current monitoring configuration. For optimal system operations, keep this number below 40 EPS on a quad core SmartServer IoT (Revision F or later), or 20 EPS on a dual core SmartServer IoT (Revisions A through E). |
Publish Interval (Heartbeat) – the maximum interval between updates from the IAP server to any IAP clients, similar to a heartbeat. You can specify a fractional value such as 0.2 seconds. For a datapoint configured for periodic polling, this is typically a multiple of the polling interval. For a datapoint not configured for periodic polling, the publish interval specifies the maximum interval between updates from the cached datapoint value.
A datapoint update may be published more frequently than specified by the publish interval if either of the following conditions are met:
the datapoint is polled at a faster rate than the publish interval, and publishing is appropriate based on the minimum publish interval and minimum publish delta value.
the datapoint is updated by an event-driven update or an on-demand poll, and publishing is appropriate based on the minimum publish interval and minimum publish delta value.
Minimum Publish Interval (Delta Time Throttle) – minimum interval in seconds between updates from the IAP server to IAP clients. This is a time-based throttle that does not throttle or otherwise limit periodic updates based on a configured publish interval.
A scalar value specifies that a datapoint value will not be published if the difference between the new value and the last published value is less than the minimum publish delta value. When enabled, this is a datapoint delta, value-based throttle that does not throttle or otherwise limit periodic updates based on a configured publish interval.
A scalar value specifies that a datapoint update will not be logged if the difference between the new value and the last logged value is less than the Log Minimum Delta Value. When enabled, this is a datapoint delta, value-based throttle. Log entries are not throttled based on value if the Log Minimum Delta Value is not Any Change or Always, unspecified, or equal to 0.
Log 1/2/3 Multiple – logging multiples for logs 1, 2, and 3. Each specifies a multiple of the Publish Interval for the minimum time between logged values. The default value is 0. When this value is set, the CMS updates the Log Interval value to equal the Multiple times the Monitoring Interval.
If the Poll Interval is less than the Publish Interval, the default value for the corresponding Log Interval is the Publish Interval times the Multiple minus 50% of the Poll Interval.
For example, if a datapoint is polled every 10 seconds and the multiple is 6, the datapoint value is logged at least every 60 seconds. If the multiple value is 0, the datapoint value is not logged for this log level. Any positive value specifies that the datapoint is logged for this log level.
Click UPDATE to return to the Datapoint Properties widget.
Alarm Name – a text field where you can enter a name for the alarm type definition. If defined, this name appears in the Alarm Type list.
Note: Alarm Name must be unique across all alarm types and across all device types for handling alarm assignments. |
High Warning and Low Warning – datapoint limits for triggering warnings, one for a high value warning and one for a low value warning.
High Alarm and Low Alarm – datapoint limits for triggering alarms, one for a high value alarm and one for a low value alarm.
High Warning Preset and Low Warning Preset – datapoint presets for triggering warning alarms, one for a high-value warning alarm and one for a low-value warning alarm. (This setting requires Alarmed to be Yes; this feature is available with SmartServer release 2.8 or higher).
High Alarm Preset and Low Alarm Preset – datapoint presets for triggering error alarms, one for a high-value error alarm and one for a low-value error alarm. (This setting requires Alarmed to be Yes; this feature is available with SmartServer release 2.8 or higher).
From the PRESET DEFINITION tab, you can create, edit, and remove preset definitions.
From the PRESET DEFINITION tab, click the action icon () for the desired preset definition and select Remove preset.
The preset definition is automatically removed.
To remove multiple preset definitions, follow these steps:
You can set the localization transformation rules to be used by a datapoint through the Edit Datapoint Properties view, setting the multiplier, exponent, offset, and units fields to get the native value. Any simple data type, as well as any field in a structure or union, can be transformed. After adding of changing any rules, click Update and then refresh your browser window (F5 in many browsers) to display the updated localization rules.
The transformation value = ( input value [raw value] * multiplier * 10^exponent ) + offset
Exponent has two purposes:
Consider, for example, a device reports temperature as 22 degrees Celsius and you want to show the temperature as Fahrenheit. The number of decimal places you want to see in the Datapoint Browser widget determines the values used for the localization transform.
To clear any localization transformation rules, click the delete () button, click UPDATE, and then refresh your browser window (F5 in many browsers) to display the updated rules.
To export datapoint properties for a single datapoint, click the action icon () on the Datapoint Properties widget for the datapoint and select Export.
The CMS exports the datapoint properties to a DLA file.
To export all datapoint properties, click the action icon () on the Datapoint Properties widget and select Export All Datapoint Properties.
The CMS exports all of the datapoint properties to a DLA file.
By default, the SmartServer IoT is configured to use localization.
To disable this option, go to the Global Settings button () on the main page.
Click the Global Settings button () and select the Use Localization action (which appears in yellow when enabled) from the dropdown list.
To re-enable localization, click the Global Settings button () and select the Use Localization action (which appears in blue when disabled) from the dropdown list.
You can create a DLA requirements file as a CSV file that lists initial value, logging, and alarming requirements for datapoints.
A DLA file contains the following embedded metadata tags, anywhere in the file, but typically in the first line:{noformat}#filetype,dla{noformat}
A DLA file is categorized by its extension .DLA or .CSV (not case sensitive), and the #filetype tag equal to dla (not case sensitive) and is identified by its filename. Compound extensions such as DLA.CSV can also be used.
A DLA file contains the following columns (headings are not case sensitive):
Parameter | Description | |
---|---|---|
Protocol | Valid values are: LON, IAP, ModBus, and BACnet | |
Device Type | Device type from XIF file (not required for IAP). The device type is defined by a DTD record. Keyed to the PID in the XIF files that are packaged in the DTD. | |
Datapoint | Fully qualified name as derived from the XIF file including block name, index and datapoint name. | |
Monitored | Yes or No | |
Polled | Yes if polled; No if event-driven. | |
Poll Interval | Polling interval for use by the protocol engine. | |
Publish Interval | Publishing interval for use by the protocol engine. Typically this is a multiple of the polling interval. If not a multiple, then the highest multiple that does not exceed the specified interval is used. | |
Expected Update Interval | Expected average number of seconds between updates. If 0, updates are not expected and included in traffic estimation. You can specify as a fractional value such as 0.5 seconds. Set this parameter to the Min Publish Interval value if the Expected Update Interval is blank and the Min Publish Interval is changed. This value is used for traffic estimation only and does not otherwise impact monitoring. | |
Publish Min_Delta_Time (this parameter uses underscores) | Minimum number of seconds between published values. If 0, then there is no time throttle. | |
Publish Min Delta Value (this parameter does not use underscores) | Valid values are: Any – publishes data on any change. | |
Initial Value | For inputs only. Specifies the initial value. If blank, then no initial value. | |
Log Interval 1 | Sets the data logging intervals. Typically a multiple of the polling interval. If not a multiple, then the highest multiple that does not exceed the specified interval is used. | |
Log Retention 1 | Sets the data retention period (in seconds) for each of the three log intervals. | |
Log Min Delta Time | Minimum number of seconds between logged values. If 0, then there is no time throttle. | |
Log Min Delta Value | Valid values are: Any – logs data on any change. | |
Alarm Name | If defined, then it appears in the Alarm Type list.
| |
High Warning | Sets high and low warning limits. | |
High Error | Sets high and low error limits. | |
Visible | Yes to show datapoints (default); No to hide datapoints. | |
Presets | Sets the presets name and value. | |
Localization | Sets the localization transformation rules. | |
Logged | Yes for logging; No for no logging. |
The following table summarizes the changes from the DLA file implemented in SmartServer IoT 2.4 to SmartServer IoT 2.5. Fields shown as "N/A" for 2.4 are newly added in SmartServer IoT 2.5. Fields shown with different names are renamed from the listed SmartServer IoT 2.4 name.
DLA file (in 2.4) | DLA file (in 2.5) Polled == YES | DLA file (in 2.5) |
Poll Interval | Poll Interval | N/A |
Publish Interval | Publish Interval | N/A |
Publish Min_Delta_Time | N/A | Min Publish Interval |
N/A | N/A | Expected Update Interval |
Publish Min Delta Value | Publish Min Delta Value | Publish Min Delta Value |
Initial Value | Initial Value | Initial Value |
Log Interval 1 | Log 1 Expected Interval | Log 1 Expected Interval |
Log Interval 2 | Log 2 Expected Interval | Log 2 Expected Interval |
Log Interval 3 | Log 3 Expected Interval | Log 3 Expected Interval |
N/A | Log 1 Multiple | N/A |
N/A | Log 2 Multiple | N/A |
N/A | Log 3 Multiple | N/A |
N/A | Log 1 Min Interval (calculated from Log 1 Multiple * Publish Interval) | Log 1 Min Interval |
N/A | Log 2 Min Interval (calculated from Log 2 Multiple * Publish Interval) | Log 2 Min Interval |
N/A | Log 3 Min Interval (calculated from Log 3 Multiple * Publish Interval) | Log 3 Min Interval |
Log Retention 1 | Log 1 Retention Period | Log 1 Retention Period |
Log Retention 2 | Log 2 Retention Period | Log 2 Retention Period |
Log Retention 3 | Log 3 Retention Period | Log 3 Retention Period |
Log Min Delta Time | N/A | N/A |
Log Min Delta Value | Log Min Delta Value | Log Min Delta Value |
#filetype,dla |
#filetype,dla |
Presets column follows Visible:
#filetype,dla |
The following example shows the datapoint type as a structure:
#filetype,dla |
Localization column follows Presets:
#filetype,dla |
The schema.ini file may be used to perform simple data validation when creating a DLA file with Excel. The schema.ini file is available here.