Creating A Rom Disk Image; Using Diskimag: Dos Disk Image Builder - Rockwell Automation Allen-Bradley ControlLogix 1756-MVI Programming Reference Manual

6-4 Programming the MVI Module

Creating a ROM Disk Image

Publication 1756-RM004B-EN-P - October 2000
• SY.EXE
• DOS DIRECTORY:
ATTRIB
CHKDSK
DELTREE
FORMAT
MEM
XCOPY
To change the contents of the ROM disk, a new disk image must be
created using the DISKIMAG (DOS) or WINIMAGE (Windows)
utilities. The disk image must then be downloaded to the MVI module
using the MVIUPDAT utility (see pages 6-8 to 6-11).
The DISKIMAG and WINIMAGE utilities for creating disk images are
described in the following sections. You may use either utility to
create the ROM image disk.

Using DISKIMAG: DOS Disk Image Builder

The General Software DISKIMAG utility transfers raw sectors from a
floppy disk to a BINARY (unformatted) file suitable for use as input to
the MVIUPDAT.EXE utility.
To create a ROM-based image of a bootable floppy disk using
DISKIMAG, follow the procedure below.
1. Format a floppy diskette.
When using DISKIMAG to copy the partial contents
IMPORTANT
of a floppy to a file, make sure that the files are
packed at the beginning of the disk, and that the size
of the output file is large enough to include the files
themselves plus the floppy's boot record, FATs, and
root directory.
If the disk has been previously formatted and used for other
things, re-format it. Otherwise, your desktop DOS may not start
writing files at the beginning of the floppy. This could cause
missed files if you make an image file of only the partial
contents of the floppy.
Y-modem send utility