OPC Client Driver Statistics Dialog
The Show Stats button will display the following information about an OPC Client driver tag.
Driver Name The name of the driver (within the driver's code) for which statistics are being displayed.
Version The version number and date that this driver was created.
OPC Server Status Information about the attached OPC server.
Counts The number of successful communications since the system started.
Timestamp The time of the last successful communication.
Date Stamp The date of the last successful communication.
dt The Response time - that is, the time between a request for information and the message being received.
Error The error number (code) for the current error.
Error Mess A message describing the type of communications error that has occurred.
Last Error The error number (code) for the last error that occurred.Last Error Mess A message describing the type of communications error that last occurred.
Error Count The number of errors that have occurred since the system started.
Error Time The time of the last reported error.
Error Date The date of the last reported error.
Error Mem Addr The memory address on the OPC server, related to the error.
Note: For OPC, the Response time value will vary, since the OPC Client driver does not make requests for data, rather, data is sent to it when changes occur.