MTS Series 793 Application User Manual
Page 502
MTS MultiPurpose TestWare®
Creating Profiles
Model 793.11 Profile Editor
502
Count
The count lets you repeat a cyclic waveform a specific number of times. The
COUNT keyword can repeat segments or cycles.
•
1 cycle = 2 segments
•
A cycle count of 0.5 is the same as a single segment.
•
Repeating a segment an even number of times ends at Level 2.
•
Repeating a segment an odd number of times ends at Level 1.
The count can be set to a constant such as COUNT= 1 SEGMENTS. This runs
each Level 1 parameter once. It is useful for profiles that issue a series of
arbitrary end levels. In this case the values in Level 2 are not used.
Note
The True Sine segment shape always starts and stops at its mean level,
and will cause a step if the previous row did not end at its mean level.
Shape
The waveshape defines how to go from the current end level to the next end
level. The SHAPE keyword can define a waveshape as a constant at the
beginning of the channel (SHAPE= RAMP), or it can define a column of data to
assign a shape to each row.
Level data
The level data defines the end level of the rows. The file requires a Level 1 value
for each row. If a Level 2 value is included, multiple segments are being specified
(cycles). Cycles run from the current level to Level 1, then to Level 2.
Note
The first segment of each row is always a “transition” segment from the
end level in the previous row to the Level 1 value in the current row. At
the beginning of the procedure, the first segment is a transition from the
current level to Level 1 in Row 0.
Phase lag
The Phase file type is the same as the Block-Arbitrary file type, except that phase
relationships between channels can be specified. When Phase is used, the
following requirements must be observed:
•
The waveform rate, shape, and count must be the same for all phased
channels. They must be defined with the first channel.
•
The phase of one channel is compared to another; the higher value lags the
lower value.
•
Each row of data defines a waveform. The first segment of each of the
waveforms is stretched to achieve the phase lag.
For more information
See
See