ProSoft Technology MVI69-ADM - Manual (Page 13)

MVI-ADM ♦ 'C' Programmable Introduction
'C' Programmable Application Development Module Developer's Guide
ProSoft Technology, Inc. Page 13 of 342
February 20, 2013
1 Introduction
In This Chapter
 Operating System .................................................................................. 13
This document provides information needed for development of application
programs for the MVI ADM Serial Communication Module. The MVI suite of
modules is designed to allow devices with a serial port to be accessed by a PLC.
The modules and their corresponding platforms are as follows:
 MVI46: 1746 (SLC)
 MVI56: 1756 (ControlLogix)
 MVI69: 1769 (CompactLogix)
 MVI71: 1771 (PLC)
 MVI94: 1794 (Flex)
The modules are programmable to accommodate devices with unique serial
protocols.
Included in this document is information about the available software API libraries
and tools, module configuration and programming information, and example code
for both the module and the PLC. This document assumes the reader is familiar
with software development in the 16-bit DOS environment using the 'C'
programming language. This document also assumes that the reader is familiar
with Rockwell Automation programmable controllers and the PLC platform.
1.1 Operating System
The MVI module includes General Software Embedded DOS 6-XL. This
operating system provides DOS compatibility along with real-time multi-tasking
functionality. The operating system is stored in Flash ROM and is loaded by the
BIOS when the module boots.
DOS compatibility allows user applications to be developed using standard DOS
tools, such as Digital Mars C++ and Borland compilers. User programs may be
executed automatically by loading them from either the CONFIG.SYS file or an
AUTOEXEC.BAT file.
Note: DOS programs that try to access the video or keyboard hardware directly will not function
correctly on the MVI module. Only programs that use the standard DOS and BIOS functions to
perform console I/O are compatible.
Refer to the General Software Embedded DOS 6-
XL Developer’s Guide
(page 331) on the MVI-ADM CD-ROM for more information.