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:
- On is licensed
- Off is unlicensed
|
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: - 3 = Error
- 2 = Stopping
- 1 = Running
- 0 = Loading
|
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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