ProSoft Technology MVI56-101S - Manual (Page 71)

MVI56-101S ♦ ControlLogix Platform Ladder Logic
IEC 60870-5-101 Slave Communication Module User Manual
ProSoft Technology, Inc. Page 71 of 193
August 2, 2011
3 Ladder Logic
In This Chapter
 Module Data Object (ModuleDef870) .................................................... 72
 Adding the Module to an Existing Project .............................................. 74
Ladder logic is required for the MVI56-101S 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.