ABB S800 I/O User Manual page 36

Fieldbus communication interface for advant fieldbus 100
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6D'(
20.60%
!
10.30%
#
5.150%
'
2.575%
%
1.288%
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0.644%
%#
0.322%
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0.161%
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0.080%
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!
0.040%
!#
0.020%
!#'
0.010%
#(%
(1) Total load = (load generated by INSCANT) + (load generated by OUTSCANT)
The total load if INSCANT is 32 ms and OUTSCANT is 64 ms is:
Total load = 0.788 + 0.244 = 1.032%.
(2) Readbacks increase the load depending on the cyclicity and with the same amount as the net load at that
cycle time. For Master the cycle time is 1024 which gives 0.024% more load. For MOD the cycle time is
configurable.
32
6D'"
6P'
6D'!
6D'"$
6P'(
15.80%
20.60%
20.64%
7.900%
10.30%
10.34%
3.950%
5.150%
5.190%
1.975%
2.575%
2.615%
0.988%
1.288%
1.328%
0.494%
0.644%
0.684%
0.247%
0.322%
0.362%
0.123%
0.161%
0.201%
0.062%
0.080%
0.121%
0.031%
0.040%
0.080%
0.015%
0.020%
0.060%
0.008%
0.010%
0.050%
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6P'!
9D'!
Ã9D'"
9D'"
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9D'(
15.83%
12.40%
7.931%
6.200%
3.981%
3.100%
2.006%
1.550%
1.018%
0.775%
0.525%
0.388%
0.278%
0.194%
0.154%
0.097%
0.093%
0.048%
0.062%
0.024%
0.046%
0.012%
0.039%
0.006%
9P'

DP820
9P'
#
(1)
DP820
OUT-
9P'
$
INSCANT
SCANT
9P'!
9P'!
9P'(
(2)
12.40%
20.60%
15.80%
(2)
6.200%
10.30%
7.900%
(2)
3.100%
5.150%
3.950%
(2)
1.550%
2.575%
1.975%
(2)
0.775%
1.288%
0.988%
(2)
0.388%
0.644%
0.494%
(2)
0.194%
0.322%
0.247%
(2)
0.097%
0.161%
0.123%
(2)
0.048%
0.080%
0.062%
(2)
0.024%
0.040%
0.031%
(2)
0.012%
0.020%
0.015%
(2)
0.006%
0.010%
0.008%
3BSE 020 925R101
(1)

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