ProSoft Technology MVI69-FLN - Manual (Page 107)

Reference MVI69-FLN ♦ CompactLogix Platform
FA Control Network Communication Module
ProSoft Technology, Inc. Page 107 of 137
November 3, 2008
2 When the data volume exceeds 1024 bytes: This data is transmitted by 2
frames of more in divided form.
Figure when the transmit data volume exceeds 1024 bytes
Two or more divided frames are continuously sent in the token held state.
3.5.6 Network Management
ƒ Node addition can be done while FL-net system is running.
ƒ System is running even if any node will be failure.
ƒ Every node knows state all other nodes.
Every node manages In-ring and Out-ring of nodes
ƒ One token is circulated among all nodes in the FL-net and
Token is monitored by the time of each node.
If a node does not send the token, next node will reissue it in a fixed time.
ƒ Out-ring management
If a node does not send the token, every node will recognize the node failure.
ƒ In-ring management
New node sends a participation request frame and every node monitors it.
ƒ Node state management
Network status and upper layer status are attached in the cyclic frame.