Reference
MVI56E-FLN ♦ ControlLogix Platform
User Manual
FA Control Network Ethernet Communication Module
Page 116 of 155
ProSoft Technology, Inc.
4.4
FL-net Protocol and Network
4.4.1 Understanding the Basics of FL-net
The MVI56E-FLN module is equipped to be used with 10Base-T FL-net (Version
2.00) Systems.
The basic configuration of a 10Base-T FL-net System consists of one hub to
which nodes are attached in star form through twisted-pair cable.
4.4.2 Data Frame ID of FL-net
When review the network with an analyzer such as Ethereal the user can
examine the protocol frames and use the following table to determine the
transaction type.
Data Frame ID: Transaction Code
Transaction Code
Application
0 to 59999
Transparent mode message frame
60000 to 64999
Reserved
65000
Cyclic frame (with token)
65001
Cyclic frame (without token)
65002
Participation request frame
65003
Byte block read frame (request)
65004
Byte block write frame (request)
65005
Word block read frame (request)
65006
Word block write frame (request)
65007
Network parameter read frame (request)
65008
Network parameter write frame (request)
65009
Stop command frame (request)
65010
Start command frame (request)
65011
Profile read frame (request)
65012
Trigger frame
65013
Log data read frame (request)
65014
Log data clear frame (request)
65015
Echo back message frame (request)
65016 to 65202
Reserved (for future expansion)
65203
Byte block read frame (response)
65204
Byte block write frame (response)
65205
Word block read frame (response)
65206
Word block write frame (response)
65207
Network parameter read frame (response)
65208
Network parameter write frame (response)
65209
Stop command frame (response)
65210
Start command (response)
65211
Profile read frame (response)
65212
Reserved
65213
Log data read frame (response)
65214
Log data clear frame (response)
65215
Echo back message frame (response)
