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The hospitality service logs all raw data traffic over the PMS link in a log file named PMSLINKn, where n is the server instance number.
For example, most systems only have one server instance, so the associated PMS link log would be identified as PMSLINK1. Log files use the file extension .LTT and are stored in the path C:\DuVoice\TRACELOGS.
Each night around midnight, the log files "roll over," meaning the current log PMSLINK1.LTT is renamed as PMSLINK1-YYYYMMDD0000.LTT, or something similar, where YYYYMMDD is the year, month and day of the content of the file (that is, the date that most or all of the log entries were logged). Older files are moved to the ARCHIVE sub-folder.
Log files may be viewed using the Trace Display application, shown below. Refer to the Trace Display page for more details on using this utility.
The log file contains the following fields, shown as columns in the dialog above:
Column
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Description
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Log
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The base name that identifies which log the entry was logged to.
For the PMS link log, this will always be PMSLINK followed by the server instance number. In most cases, it would be PMSLINK1.
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PID
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The process ID of the process from which the log entry was generated.
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TID
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The thread ID of the thread from which the log entry was generated.
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Date-Time
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The date and time when the log entry was logged.
Format is Year/Month/Day-Hour/Min/Sec.msec.
All values are padded with leading zeros; the millisecond value is padded to three digits and all others to two digits. The hour value is always in 24-hour clock notation.
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Filter
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Filter level. Can be ignored.
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Data
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The actual log statement generated by the service.
Log statements can be a little cryptic and are generally intended as a debugging aid for the manufacturer's technicians and developers. Still, they can sometimes be useful even to on-site technicians to verify or troubleshoot certain issues.
In the case of the PMSLINK log, you can see that the PMS has connected and that data is being sent back and forth. You can also see the raw packet information (with the exception that non-printable characters are translated to their 2-digit hexadecimal values and enclosed in angle brackets).
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