MVI56E-FLN ♦ ControlLogix Platform
Reference
FA Control Network Ethernet Communication Module
User Manual
ProSoft Technology, Inc.
Page 95 of 155
Node Data Area Assignment
Each node on a FL-net has a specific transmission area in the Common
Memory that does not overlap with others.
A transmission area assigned to one node must be a receiving area for other
nodes.
Two data areas can be assigned to a node within Area 1 and Area 2 of the
Common Memory.
Both areas can be assigned at any word-size within the maximum.
A node's memory assignment within a Common Memory area is defined by
the top address (starting address) and size of its data area.
Frame Transmission
Maximum data length of one message frame is 1024 bytes (excluding
header).
Multiple frames may be used if the transmitting area size exceeds the
maximum frame data size.
A node receiving multiple frames will update the area only after successfully
receiving all frames from the sending node. Thus time coherency of data from
a node is guaranteed.
