Error and informational messages

Informational and error messages generated by the interface are logged to the PI Message Log file. Interface-specific errors are discussed in the interface documentation.

To view system and Data Archive errors, use the AboutPI-SDK or PI SDK utilities, or PI SMT.

To translate an error number to an error description, you can perform one of the following:

• Issue the following command in a command prompt: pidiag –e error_number.

• Use the Error Lookup tool from the AboutPI-SDK utility. Enter the error number and click Lookup.

Errors use the following numbering:

• Positive: System errors

• Negative: Data Archive errors

You can enable standard deviation debugging messages using the debug UniInt (dbuniint) parameter to record the following information:

• Standard deviation thread starting and stopping

• Calculated queue size

• Variances of more than two units of standard deviation from the current mean

Additionally, interfaces can write messages to the pipc.log file by setting the pipc parameter in the .bat file to /pipc.

For details about interface message and error logging, see the OSIsoft Knowledge Base article How to read new UniInt 4.5.0.x and later Interface message logs.