Overview
This page presents information about historian diagnostics. This Historian Module relies on other modules when storing the data. For instance, for SQL targets, the final database insertion is executed by the Dataset Tag provider; for external database, such as Canary or Tag Provider Historian tools, the related third party system will perform the access. Therefore, many potential issues regrind data storage are not at the Historian Module level, but related to the external database repository, which requires diagnostics with other specific tools, according to the Target Database. The execution status of the Historian module itself, can be easily monitored using the Module Information diagnostic tools, and the Trace Window tool as described in this Section.
On this page:
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Resolving Common Problems
Using the Diagnostics Tools
Monitoring Execution Status Within the Application
Module Information - Historian Properties
The diagnostic tool Module Information updates in real-time advanced information about the Execution of the Historian Module.
By running the ModuleInformation.exe tool, the section Historian updates the following properties:
Module Information - Historian properties | |
|---|---|
Property | Example Value |
Tables | 2 |
Items | 6 |
OpenStatusMessage | OK |
IsDeleting | False |
StoreAndForward.IsEnabled | 0 |
UseStoreAndForwardDatabaseAlways | False |
HasPairRedudantStoreAndForwardPending | False |
Redundancy.LastSyncMessage | |
Redundancy.LastSyncTimestamp | |
Redundancy.LastSyncErrorMessage | |
Redundancy.LastSyncErrorTimestamp | |
StoreAndForward.IsFixingDatabase | False |
StoreAndForward.FixDatabaseMessage | |
StoreAndForward.FixDatabasePercent | 0 |
StoreAndForward.FixDatabaseElapsedTime | 00:00:00 |
The names of properties are self-explanatory, but in many cases, its exact meaning requires a deeper understanding of the implementation of the module. Contact technical support sending the contents of the table for specific analysis.
When selecting one Specific HistorianTable in the Tree under Historian, the following information is available:
| Module Information - Historian Table properties | |
|---|---|
| Item | Value Example |
| Table Name | SystemMonitoring |
| Number of History Items | 6 |
| Number of Rows | 842 |
| InitializationMessage | OK |
| Target | |
| Disable | False |
| TimeDeadband | 00:00:01 |
| LifeTime | 31 |
| SaveOnChange | True |
| SaveQuality | False |
| Normalized | False |
| Deleting | False |
| LastStoredTimeStamp | 7/29/2022 11:48:04 PM -03:00 |
| LastStoredErrorMessage | |
| LastDeletedTimeStamp | |
| LastDeletedErrorMessage | |
| LastSamplesSaved | ID: 842, UTCTimestamp_Ticks: 637947460841150000[7/29/2022 11:48:04.115 PM], LogType: 1, NotSync: False, ServerMonitorInfo_TServer__Memory: 155.2265625, ServerMonitorInfo_TServer__CPU: 0, ServerMonitorInfo_TRichClient_Memory: 60.98046875, ServerMonitorInfo_TRichClient_CPU: 0, ServerMonitorInfo_AllModules_Memory: 69.78515625, ServerMonitorInfo_AllModules_CPU: 0 |
| LastStepDuringSaving | Update samples: OK |
| ErrorCount | 0 |
| SuccessCount | 603 |
| StoreAndForward.IsActive | False |
| StoreAndForward.NumberOfRows | 0 |
| StoreAndForward.LastStartedTimeStamp | |
| StoreAndForward.LastSyncTimeStamp | |
Historian TraceWindow
The TraceWindow diagnostic tool provides real-time logging of events connected with the Historian Module execution.
Four level of message can be enabled.
Module Information - Historian properties | |
|---|---|
Diagnostic Level | Types of messages included |
Info | <<<<. Brief description of the types of events captured by this level ======== |
Warning | |
Error | |
Debug | |
In this section...
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