ProSoft Technology MVI46-DFCM - Manual (Page 57)

Reference MVI46-DFCM ♦ SLC Platform
DF1 Communication Module
ProSoft Technology, Inc. Page 57 of 103
October 20, 2008
The following illustration shows the data transfer method used to move data
between the SLC processor, the MVI46-DFCM module and the DF1 network.
All data transferred between the module and the processor over the backplane is
through the M0 and M1 files. Ladder logic must be written in the SLC processor
to interface the M-file data with data defined in the user-defined data files in the
SLC. All data used by the module is stored in its internal database. The following
illustration shows the layout of the database: