ASync Read calls
Description
This counter indicates the number of requests the OPC DA client made to read data asynchronously.
The client does not wait for the server to provide an immediate response. Instead, the client continues with its tasks while the server asynchronously notifies the client once obtaining the requested data. This method allows the client to perform other operations without being blocked by the read request.
TIP:
- This value should match the one in ASync Read Complete calls. Any discrepancies may suggest a potential loss of transaction.
- There might be a slight time delay between the request for ASync Read and the update of the ASync Read Complete Calls counter.
Location
- FactoryTalk Diagnostics Counter Monitor > System Diagnostics > localhost > FactoryTalk Linx Gateway OPC DA Server > DaClient_X
Value
- Type: Unsigned integer
- Source: This value is generated by the FactoryTalk Linx Gateway OPC DA server.
- Updates: This value increases when an OPC DA client requests to read data asynchronously.
- Reset: This value resets when you reset the service or restart the computer.
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