ProSoft Technology MVI56-LTQ - Manual (Page 59)

MVI56-LTQ ♦ ControlLogix Platform Reference
Limitorque Valve Actuator Master Communication Module User Manual
ProSoft Technology, Inc. Page 59 of 98
August 30, 2010
The following illustration shows the data transfer method used to move data
between the ControlLogix processor, the MVI56-LTQ module and the Limitorque
valve network.
All data transferred between the module and the processor over the backplane is
through the input and output images. Ladder logic must be written in the
ControlLogix processor to interface the input and output image data with data
defined in the Controller Tags. All data used by the module is stored in its internal
database. The following illustration shows the layout of the database:
Module’s Internal Database Structure
1500 registers for user data 0
Register Data
1499
2500 words of control data 1500
Control Data
3999