$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: On is licensed Off is unlicensed
LicenseExpiration	Date	The date and time the license will expire.
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.
SafeMode	Bool	Whether or not ACM is running in "Safe Mode" and using the MSAccess back up database.
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”.
ServerStartTime	Date	The date and time the server started in Local Time.
ServerStartTimeUTC	Date	The date and time the server started in UTC.
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.