Ladder logic, 3ladder logic – ProSoft Technology MVI56-LTQ User Manual
Page 29

MVI56-LTQ ♦ ControlLogix Platform
Ladder Logic
Limitorque Valve Actuator Master Communication Module
User Manual
ProSoft Technology, Inc.
Page 29 of 98
August 30, 2010
3
Ladder Logic
Module Data Object (LTQModuleDef)
In This Chapter
................................................... 30
Adding the Module to an Existing Project .............................................. 34
Ladder logic is required for application of the MVI56-LTQ module. Tasks that
must be handled by the ladder logic are module data transfer, special block
handling, and status data receipt. Additionally, a power-up handler may be
needed to handle the initialization of the module’s data and to clear any
processor fault conditions.
The sample ladder logic, on the ProSoft Solutions CD-ROM, is extensively
commented, to provide information on the purpose and function of each rung. For
most applications, the sample ladder will work without modification.