Optional

Apply tag's compression specifications to data retrieved during history recovery

Select this checkbox to use compression specifications in tag configurations to send data retrieved during history recovery with compression. Usually data is retrieved from source server and sent to receiving server without compression during history recovery. (command line parameter /DC)

Source tag definition attribute

Select this checkbox and select from the following:

• Use TagName on both (Ignoring ExDesc and InstrumentTag point attributes). Do not check the InstrumentTag, ExDesc, or UserInt1 attributes for source tag definitions. Use TagName to identify the point on both source and receiving PI Data Archives. (command line parameter /TN)

• Use ExDesc or TagName (ignoring the InstrumentTag point attribute). The source tag definition will be found in the ExDesc or TagName attribute. Ignore the InstrumentTag and UserInt1 attributes. (command line parameter /TNEX)

• Use UserInt1 (ignoring the ExDesc and InstrumentTag point attributes). The source tag definition will be found in the UserInt1 attribute. Ignore the ExDesc, InstrumentTag, and Tag point attributes. (command line parameter /PTID)

The How the PI to PI Interface finds source points section explains how the interface parameters affect which receiving tag attributes are used for mapping to the source point and the order that the attributes are searched for a mapping.

Specify maximum events to retrieve for a single point in each call to get history

This parameter is available for PI 3.3 or higher receiving servers.

When selected, the maximum number of events is set to retrieve for a single point in each call to get history. With each call to retrieve history, one call is made to put it into the receiving server. At least one of these calls will be over the network, so using a small number could result in performance problems. (command line parameter /MH= x, which has a default value of 1000 events)

Specify maximum number of exception events retrieved per data request.

When selected, this parameter sets the maximum number of exceptions events retrieved per data request. A large count reduces the number of calls required for acquiring exception updates. A small count reduces the time to complete each request (for troubleshooting network timeout issues). (command line parameter /ME= x, which has a default value of 10,000 exception events)

Set time interval between clearing exception queue during history recovery.

When selected, this parameter sets the time interval between clearing the exception queue on the source PI Data Archive for exception data scan classes. By default the interface will collect exceptions from the source PI Data Archive every 5 seconds during history recovery to prevent overflowing the queue. Users may want to adjust this time interval to tune history recovery performance. (command line parameter /RH_QCHECK= x, which has a default value of 5 seconds)

Specify the frequency that the interface calculates time offset between PI Servers.

When selected, this parameter sets the frequency in seconds at which the interface will calculate time offsets between PI Data Archives. By default, the interface calculates time offsets every 30 seconds. (command line parameter /OC= x, which has a default value of 30 seconds).