$Server Items
Overview
The $Server object supports items that provide system-wide information.
$Server Items
| Item | Data Type | Description |
|---|---|---|
| ActiveItems | I4 | The total number of items active or advised to this object. |
| CfgCount | I4 | The number of times a configuration has been saved to the ACM system. |
| ClientCount | I2 | The number of OPC clients currently connected to ACM. |
| DatabaseSize | R4 | The size of the ACM configuration database in megabytes. |
| DataSize | R4 | The size of the database data file including data and indices, in megabytes. |
| DataTableSize | R4 | The amount of space in the ACM configuration database used by data. |
| DataUtilization | R4 | Percent of the maximum allowed data size in the database that is in use. |
| DevicesLicensed | I4 | The number of devices allowed in the ACM license. |
| DevicesUsed | I4 | The number of devices currently used. |
| EfmFilesFailed | I4 | The number of EFM files (files with history records) waiting to be imported into SQL Server that failed the import. |
| EfmFilesWaiting | I4 | The number of EFM files (files with history records) waiting to be imported into SQL Server. |
| InternalActiveItemCount | I4 | The number of internal active items added by OPC clients. Duplicate items are not counted. |
| InternalTotalItemCount | I4 | The number of internal items added by OPC clients. Duplicate items are not counted. |
| ItemCount | I4 | The number of OPC items added by OPC clients. |
| LicenseStatus | Bool | License status:
|
| LogSize | R4 | The size of the transaction log file, in megabytes. |
| MaxDatabaseSize | R4 | Maximum size allowed for the database, in megabytes. |
| MaxLogSize | R4 | Maximum size allowed for the transaction log file, in megabytes. |
| OpcGroupCount | I4 | The number of OPC groups connected to ACM. |
| OpcQueuedReadCount | I4 | The number of currently queued requests received by the server to perform a synchronous read from device. |
| OpcTotalReadCount | I4 | The total number of requests the server received to perform a synchronous read from device. |
| PurgeHistoryStatus | Bool | The result of the last attempt to delete old history records. TRUE if successful, FALSE if not successful. |
| ServerId | I4 | Indicates the location where ACM is running. A value of 1 means ACM is running on server “A”. A value of 2 means ACM is running on server “B”. |
| ServerStatus | I4 | The status of the server. This value can be:
|
| Sinewave | R4 | An analog real sine wave traveling from 0.0-100.0 and back down that can be used in testing. |
| WatchDog | Bool | A boolean bit that is switched off and on that can be used in testing. |
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