GE EPM 9650/9800 manual Above Limits

•The next byte is a supplement to the Trigger Time Stamp. It is in milliseconds for the Trigger Time Stamp and a binary value in the range 0–9.

•The next byte tells which capture contains the trigger. For example, a device records a surge lasting for two cycles. The surge triggers the first capture and the first capture contains the triggering cycle for that first capture. However, the cycle that is the subsequent return to normal is also contained in the first capture. It triggers the second capture. In the first Trigger Record, this byte would contain the value 0x000, identifying the triggering sample to be in the first capture at the index given by the above index value. In the second Trigger Record, this byte would also contain the value 0x000, identifying the triggering sample also contained in the first capture at the index and time given by its index value.

•The next two bytes are a signed integer with the index of the sample that was at the end of the triggering cycle.

•The next two bytes are a signed integer with a count of the number of samples used in the triggering cycle.

•The next two bytes are a signed integer with the index of the sample that was the first sample of the capture.

•The next four bytes are a bitmap of the States of the High Speed Limits after a triggering cycle. These bits represent the true states of all the limits, regardless of trigger enable settings.

The first two bytes are for the Above Limits, in the following order:

						Table 6.3: Above Limits
							Above Limit
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
VAN	VBN	VCN	VAUX	IA	IB	IC	IAUX	IN	VAB	VBC	VCA	—	—	—	—

The other two bytes are for the below limits, and are in the same order as above.

•The next four bytes are a bitmap of the Latched Delta states of the High Speed Limits. For the first cycle in which a limit changes state, the change of state is recognized as a Delta. If waveform capture parameters require multiple captures for a given change, subsequent captures would be recognized as having no new Deltas. Therefore, every time a Delta occurs, the new Delta is latched, so that consecutive captures for the original Delta contain information on the Delta that triggered the first capture. The order of the bits is the same as for the states of the High Speed Limits, as above. These bits will only report changes in limits that are enabled for Waveform Triggering.

•The next byte indicates whether this capture is contiguous with the previous capture. A value of 0x001 indicates that the first sample of this capture immediately follows the last sample of the previous capture, with no gap. Contiguous does not imply that they were both captured for the same cause, only that they follow one after the other. A value of 0x000 means that a gap in time

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