ABB Advant Controller 450 User Manual

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3BSE 002 415R701 Rev A 3-51
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The load in a controller caused by a command from an operator station or an information
management station is non-recurrent and relatively small. It can be disregarded.
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I/O signals (including calculated variants) with NORMAL_TREAT = 1 (event handling
selected) will give rise to increased load when the event occurs, which means VALUE changed
(DI) or LIMIT exceeded (AI). However this is taken care of by having the stipulated reserve
capacity.
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Full data sets (that is with 24 DAT values) are assumed. However the length of the data sets has
little effect on the load in Advant Controller 450.
Figure 3-11, sending data sets and Figure 3-12, receiving data sets show the additional load
from these applications. The CPU load caused by the basic network communication between
two nodes is included in the CPU base load figures given.
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3
2
1
4 8 12 16 18
Number of
DS / sec.
Load (%)
4
SC510
SC520
(utilization of
slave CPU)

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English