3ladder logic – ProSoft Technology MVI56-103M User Manual

Page 55

Advertising
background image

MVI56-103M ♦ ControlLogix Platform

Ladder Logic

IEC 60870-5-103 Master Communication Module

User Manual

ProSoft Technology, Inc.

Page 55 of 152

February 22, 2013

3

Ladder Logic

In This Chapter

Module Data .......................................................................................... 56

Command Control Data Object ............................................................. 60

Event Message Data Object .................................................................. 62

Adding the Module to an Existing Project .............................................. 63

Ladder logic is required for application of the MVI56-103M 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.

Advertising