FOUNDATION fieldbus Communication
March 2006
A-9
Figure A-6. Example Link Schedule Showing Scheduled and Unscheduled Communication
B2715-1 / IL
Sequence Repeats
AI
AI
AO AOPIDPID
Macrocycle Start Time
Offset from macrocycle
start time = 0 for AI Execution
Offset from macrocycle start
time = 20 for AI Communication
Offset from macrocycle start
time = 30 for AI Execution
Device 1
Scheduled
Communication
Unscheduled
Communication
Device 2
Macrocycle
0 20 40 60 80 100 120 20 40 60 80 100 120
Offset from macrocycle
start time = 50 for AO
Communication
Start of Next Macrocycle
Network Management
Information for setting up network communications,
including Virtual Communication Relationships
(VCRs), host timer recommendations, and other
network parameters, can be found in the capabilities
file (.cff) available from the website
www.FIELDVUE.com or from the Fieldbus Foundation
website.
A
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