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Parameter | OPC.AsyncTimeout |
|---|---|
Description | It defines the timeout value for asynchronous OPC queries. If no answer to an OPC query is received within this time interval, the quality of all queried datapoints will be set to UNCERTAIN. |
Scope | 1 - 60 |
Unit | seconds |
Default value | 5 |
Parameter | OPC.AsyncReadFromDevice |
|---|---|
Description | It specifies whether the response data of the asynchronous OPC value read queries ("READ") shall be read from the server's data base, or whether it shall directly be retrieved from the field device. ON - the field devices are queried OFF - the values are read from the server's data base |
Scope | ON, OFF |
Unit | None |
Default value | OFF |
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