
MVI56-DFCMR ♦ ControlLogix Platform Reference
DF1 Interface Module with Reduced Data Block
Page 72 of 113 ProSoft Technology, Inc.
October 20, 2008
Module Configuration
This block is sent from the ControlLogix processor to the module to force the
module to write its current configuration back to the processor. This function is
used when the module's configuration has been altered remotely using database
write operations. The write block contains a value of -9000 in the first word. The
module will respond with blocks containing the module configuration data. Ladder
logic must handle the receipt of these blocks. Refer to Configuration Data (page
27) for information on configuration data requests.
The blocks transferred from the module are as follows.
Module Configuration (Read Block)
Offset Description Length
0 9000 to 9002 1
1 Module Configuration Errors 1
2 Port 1 Configuration Errors 1
3 Port 2 Configuration Errors 1
4 to 40 Spare 37
41 -2 or -3 1
Module Configuration (Write Block)
Offset Description Length
0 9000 1
1 to 6 Backplane Set Up 6
7 to 41 Spare 35
Module Configuration (Write Block)
Offset Description Length
0 9001 1
1 to 26 Port 1 Configuration 26
27 to 41 Spare 15
Module Configuration (Write Block)
Offset Description Length
0 9002 1
1 to 26 Port 2 Configuration 26
27 to 41 Spare 15
Override File Map Configuration
The user has the ability to override the default file map configuration in order to
define specific files when using the module as a DF1 slave device.
Override File Map Configuration (50/port)
Offset Description Length
0 7000 to 7004 or 7100 to 7104 1
1 to 4 Map #1 Definition 4
5 to 8 Map #2 Definition 4
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