Rockwell Automation 1788-FFCT NI-FBUS Configurator User Manual - Manual (Page 15)

Publication 1788-UM052B-EN-P - April 2002
Fieldbus Overview 1-7
Even if loops are running at different rates, they can send each other
data through linkages. Figure 1.7 shows an example of a linkage
between two loops. All loops on a link run within one macrocycle. A
macrocycle is the least common multiple of all the loop times on a
given link. For example, the macrocycle in Figure 1.7 is 1 second.
Figure 1.7 Linkage Between Two Loops
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