The KNX integration includes a feature to temporarily enter a diagnostic mode. Diagnostic mode captures the logging information. During capture, bus communication is not affected, and the capture does not cause intermittent offline events. All status and command times have the same duration as they have without the capture.
For a serial port capture, you need a null modem RS-232 serial cable connected to one of the serial ports on the NAE55. For an SNE and SNC, you need the ACC-USBRS232-0 USB-to-RS-232 adapter connected to a null modem RS-232 serial cable. For a USB port capture on the NAE85, you need a removable flash drive connected to the USB port.
Follow these general rules when logging:
- You can capture the diagnostic information at the following locations:
- For the NCE25, NAE35, NAE45, NAE55, NIE29, NIE39, NIE49, and NIE59, diagnostic messages are received at the serial port and can be captured to a file using a serial terminal program.
- For the SNE and SNC, diagnostic messages are received with the use of a certified USB-to-RS-232 adapter and can be captured to a file using a serial terminal program.
- For the NAE85, log files are captured at the USB
port.Note: For NAE85s only, if you are using a USB drive, insert the drive before you enable log capture and remove the USB drive after you disable the log.
- Do not disconnect the cable or flash drive until after you deactivate diagnostic mode. The deactivation step stops diagnostic mode.
- To activate diagnostic mode, set the Diagnostic parameter (parameter 1) to Y (Yes) in the integration object.
- Use the Metasys SMP UI or the OAS Metasys UI to help determine which devices and points from the network engine require analysis.
- In general, keep diagnostic mode active long enough to capture the information related to the devices and points that need to be analyzed. Ten minutes is the optimal capture time. If you use a time less than five minutes, you may not capture enough information to analyze. If you use a time greater than 20 minutes, the captured file becomes too cumbersome to analyze and too large for the text editor to open. For points that send values infrequently, you must first command an update before beginning diagnostic mode.
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Use a USB flash drive of 32 GB or greater that is formatted to the FAT32 file system. Do not use a USB flash drive that auto-installs any software on the host device at the time of initialization. USB port capture is only available for an NAE85.
- Return the device to normal operation by deactivating diagnostic mode after you have captured the data. To deactivate diagnostic mode, set the Diagnostic parameter to N (No).
- Use a text editor to read the diagnostic log file.
If you contact technical support for assistance, you may be asked to submit the text captured over the serial port or the USB port. Technical support may also request an export of the archive database from SCT.