ABB Advant Controller 450 - Page 516

Advant
®
Controller 450 User’s Guide
Appendix F Load Calculation
F-2 3BSE 002 415R701 Rev A
Table F-2. Calculation of CPU-load from S100 and S800 Outputs
Signal type
No of
signals
Basic load
(ms)
Scan time
(ms)
Dynamic load
(ms)
Changes/sec.
per signal
Total load
AO
A)
____
B)
0.02
C)
_______ ms
E)=100*A*B/C
E)
_______%
F)
0.18
G)
_______
H)=A*G*F/10
H)
_______%
E+H
________%
AOC
A)
____
B)
0.003
C)
_______ ms
E)=100*A*B/C
E)
_______%
F)
0.03
G)
_______
H)=A*G*F/10
H)
_______%
E+H
________%
DO
A)
____
B)
0.003
C)
_______ ms
E)=100*A*B/C
E)
_______%
F)
0.13
G)
_______
H)=A*G*F/10
H)
_______%
E+H
________%
DOC
A)
____
B)
0.003
C)
_______ ms
E)=100*A*B/C
E)
_______%
F)
0.03
G)
_______
H)=A*G*F/10
H)
_______%
E+H
________%
Total ________%