3ladder logic – ProSoft Technology MVI69-HART User Manual

Page 47

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MVI69-HART ♦ CompactLogix Platform

Ladder Logic

HART Multi-drop Master Communication Module

User Manual

ProSoft Technology, Inc.

Page 47 of 169

March 29, 2012

3

Ladder Logic

In This Chapter

 Using the Sample Program ................................................................... 48

 Adding the Module to an Existing CompactLogix Project ...................... 53

 Adding the Module to an Existing MicroLogix Project ............................ 57

Ladder logic is required for the MVI69-HART module to work. 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 inRAx 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.

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