Rockwell Automation Publication 1426-UM001J-EN-P - August 2019 107
Power Quality Monitoring Chapter 5
Commands
The following waveform-related commands are found in the
Command.System_Registers
table on page 368.
Command Word Two
Set this command word value to execute the listed action. The selections for this
parameter:
• 14 = Trigger Waveform
• 15 = Clear Waveform
Clear Waveform operates by using the value that is contained in Clear Waveform
File ID. The default value is zero.
Clear Waveform File ID
Waveform File ID, the choices are the following:
•0 = Clear All
• 1…999 = Clear selected; if the ID does not exist, the command is ignored
Waveform File Names
Waveform files are stored with names that contain file identification and a local
timestamp. The file name syntax is:
Waveform_ID_YYYYMMDD_hhmmss_MicroS_HH, where
• ID = the file identifier, which is used in the Clear_Waveform command
• YYYMMDD_hhmmss = the local date and time stamp of the record,
used to associate the waveform file with a power quality log record
• MicroS = the microsecond timestamp of the record, which is used for
aligning WSB waveform records
• HH = the UTC hour avoids duplication during daylight-saving time
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