ProSoft Technology MVI69-ADM - Manual (Page 109)

MVI-ADM ♦ 'C' Programmable Creating Ladder Logic
'C' Programmable Application Development Module Developer's Guide
ProSoft Technology, Inc. Page 109 of 342
February 20, 2013
6.4 MVI71 Ladder Logic
The ladder files included are:
File Name Description
MVI71ADM_BT.RSP RSLogix5 Sample Program (For Backplane Interface)
MVI71ADM_SC.RSP RSLogix5 Sample Program (For Side-connect Interface)
Note: The ladder files for the various hardware platforms are provided with the ADM module. They
are also available on on the ProSoft Technology web site at www.prosoft-technology.com.
6.4.1 Sample Ladder Logic
Ladder logic is required for application of the MVI71-ADM module when using the
block transfer interface. Ladder logic is only required when using the side-
connect interface to perform special functions. Tasks that must be handled by the
ladder logic are module configuration, data transfer, and special block handling.
This section discusses each aspect of the ladder logic as required by the module.
The sections that follow describe the simple ladder logic example provided for
each interface.
Block Transfer Interface
When the block transfer interface is used, ladder logic is required to transfer all
data between the module and the processor.
Main Routine
The Main program file is used to jump to the routine that processes the BTR and
BTW functions for the interface. Ladder logic to accomplish this task is shown
below: