ABB Advant Controller 450 Product Guide

Advant Controller 450 Product Guide
Chapter 6 Technical Data and Performance
6-12 3BSE 015 953R201 Rev B
6.9.1 CPU Load from Data Set Communication
The CPU load from data set communication can be estimated from the examples in Table 6-11
and Table 6-12. Full data sets (with 24 DAT values) are assumed. However, the length of the
data sets has little effect on the load in Advant Controller 450.
NOTE
The capacity of MasterNet must also be considered when calculating the data set
communication performance.
NOTE
The capacity of MasterNet must also be considered when calculating the data set
communication performance.
6.9.2 CPU Load from Data Set Peripheral Communication
The CPU load from data set peripheral communication can be estimated from the examples in
Table 6-13. Full data set peripherals (8 DAT values) are assumed. However, the length of
the data sets has little effect on the load in Advant Controller 450.
NOTE
The capacity of Advant Fieldbus 100 must also be considered when calculating
the data set peripheral communication performance.
Table 6-11. CPU load with MasterBus 300 executed in main CPU
No. of data sets/s Load on sending AC 450 Load on receiving AC 450
4 0.8% 0.7%
8 1.7% 1.5%
16 3.3% 2.9%
Table 6-12. CPU load with MasterBus 300 executed in slave CPU (SC520)
No. of data sets/s
Load on sending
AC 450
Load on receiving AC
450
4 0.2% 0.4%
8 0.5% 0.8%
16 0.9% 1.5%
Table 6-13. The CPU load caused by data set peripheral communication
(cycle time of scan task = 512 ms)
No. of DSP/s Load on sending AC 450 Load on receiving AC 450
25 0.4% 0.4%
100 1.0% 1.1%
200 1.7% 1.9%

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English