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

Page 29

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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.