RTU status information

The interface monitors the connection status of all assigned RTUs. Once every 10 seconds the interface checks all assigned RTUs to see if any RTU requires its link to be reset. If an RTU is found in need of resetting, the address of the RTU is logged to a .csv file for analysis. The device status log is very useful to determine which field device(s) are in trouble. If the interface utilizes the Device Status health point as described in the PI Universal Interface (UniInt) User Guide, the interface will send the device status point a message containing the count of RTUs in error and also include the path to the interface device status log file in the message.

The naming convention for the device status log file is exename_devstat_id.csv, where exename is the name of the interface executable file and id is the interface identification. For example, an executable file named pidnp3 with an id of 200 has a device status log file of pidnp3_devstat_200.csv. The device status log is placed in the /devstat subdirectory of the interface executable directory. The maximum size of the device status log is approximately 100KB and then the file will be cleared for new data. By default, the device status log will be created. If no device status log is desired, use the/NoDevStatLog startup command parameter to disable logging.