ProSoft Technology ControlLogix MVI56E-SMGC User Manual page 80

MVI56E-SMGC ♦ ControlLogix™ Platform
Enhanced FMC722 TPU General Communication Module
The following illustration shows the data flow for a response message:
The remote server unit generates the response message. It can be generated in
response to a request message sent from the ladder logic or unsolicited because of a
change in the database of the remote server. Ladder logic is responsible for parsing
each data block received over the backplane and for placing the data in the correct
controller tags.
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