ProSoft Technology MVI69-FLN - Manual (Page 116)

MVI69-FLN ♦ CompactLogix Platform Reference
FA Control Network Communication Module
Page 116 of 137 ProSoft Technology, Inc.
November 3, 2008
3.8.3 Network Management Table
The network management table manages information that is shared by all nodes
on the network.
Item Bytes Contents (data range)
Token holding node number 1 byte Node currently holding the token
Minimum allowable frame interval 1 byte Unit: 100 _s
Allowable refresh cycle time 2 bytes Unit: 1 ms
Refresh cycle measurement value
(current) 2 bytes Unit: 1 ms
Refresh cycle measurement value
(maximum) 2 bytes Unit: 1 ms
Refresh cycle measurement value
(minimum) 2 bytes Unit: 1 ms
3.8.4 Cyclic Transmission
Cyclic transmission is used to transmit cyclic data. The data is shared by each
node through the Common Memory (shared memory) function.
3.8.5 Volume of Transmission Data
An area of 0.5Kwords + 8Kwords = 8.5Kwords is provided for the whole network.
The maximum quantity of data that can be transmitted by a single node is
8.5Kwords. One word is equal to two bytes.