3.2.3
IONet Switch Guidelines
IONet is presently recommended to pass through a maximum of five switches in series when traveling from an I/O pack to a
main controller for the following reasons:
•
IONet switches are not managed switches.
•
Every Ethernet switch introduces latency into the transmission of Ethernet packets.
•
Each controller frame allocates a period of time to service I/O data.
Mark VIe Controller
IONet Switch
Communication path
between I /O packs
and controller, IONet
switches A-B
A
B
C
D
E
Communication path
between I /O packs
and controller, IONet
switches A-B-C
Communication path
between I /O packs
and controller, IONet
switches A-B-C-D
Communication path
between I /O packs
and controller, IONet
switches A-B-C-D-E
Note: Maximum of 5 IONet
switches that Ethernet packets
pass through between I/O pack and
controller
Five Maximum IONet Switches in Series Between Controller and I/O Pack
Ethernet Networks
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Public Information
Содержание Mark VIe
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