Rockwell Automation 44887-PUB, 44887 Enwatch - Manual (Page 28)

Publication GMSI10-UM031C-EN-E - January 2009
24 Installing the Enwatch
Maximum number of averages that can
be supported Number of samples required: Lines x 2.56 + lines x 2.56(#avg -1) x (1 -%overlap)
Max number of samples per configuration: 32768
Max number of averages = ((32768 / (lines x 2.56)) - 1) / (1 -%overlap) + 1)
The following table shows the maximum number of averages versus the number of lines and
percent overlap for non-trigger point.
The following table shows the maximum number of averages versus the number of lines and
percent overlap for pre-trigger point.
Signal detection RMS, Peak, Peak-Peak
Configuration downloading Route mode configuration downloads to Flash memory
Live mode configuration downloads to RAM
Note: You can reduce number of average or increase percent overlap to reduce amount of
memory used.
Table 1.16 Enwatch measurement capabilities
Product Feature Capability
Max samples-non trigger points 32768
% overlapping % overlapping % overlapping % overlapping
#lines 0 0.25 0.5 0.75
100 128 170 255 509
200 64 85 127 253
400 32 42 63 125
800 16 21 31 61
1600 8 10 15 29
3200 4 5 7 13
6400 2 2 3 5
12800 1 1 1 1
Max samples-trigger points 16384
% overlapping % overlapping % overlapping % overlapping
#lines 0 0.25 0.5 0.75
100 64 85 127 253
200 32 42 63 125
400 16 21 31 61
800 8 10 15 29
1600 4 5 7 13
3200 2 2 3 5
6400 1 1 1 1
12800 - - - -