The JMRI Manual
Download 3.0
Installing JMRI
Starting JMRI Operations
Using JMRI Operations

JMRI® OperationsPro Manual

Revised 9/6/2013 to cover version 3.4

JMRI is a Java-based cross-platform application for model railroaders. JMRI contains applications for:

All this capability is contained in one program (JMRI) which has several "start-up" screens for the various applications.
JMRI OperationsPro is contained within the DecoderPro3 and PanelPro Programs and accessible through their main menu.

Versions of JMRI® can run on any computer system that will run Java 1.6.0 or later, whether it is Macintosh, Windows, or Linux based. It does require that Java be installed on the computer. You can get Java as a free (but very large...) download at:

If this is your first visit to our manual we suggest that you take the DecoderPro® tour to get an overview of what we're about to cover.

Note: All screen shots in this manual are from a Windows machine using the "Metal" User Interface option. While your screens will probably differ in some layout details, they will be essentially the same. All programming examples shown are with Digitrax PR3 (MS100 mode) connected to Digitrax Super Chief Radio Command Station. Most of the decoders in locomotive samples will be Digitrax, except for sound examples.

Note: This entire manual has been updated to correspond to OperationsPro v3.4 and the HTML verified using HTML4 and Cascading Style Sheets. If the formatting looks odd, you probably need to update your browser.

Table of Contents

Installing JMRI

Starting Operations

DecoderPro® Main Window


Version Revision Date Editors Major Revisions
3.0 1/5/2013 Dale A. Tripp
Bruce Shanks
Updated from JMRI 2.14.1 and removed from DecoderPro® as separate Guide
3.2 8/17/2013 Dale A. Tripp Updated from Version 3.0
3.4 9/6/2013 Dale A. Tripp Updated from Version 3.2. Restructured Settings, Locations, Cars, Locomotives, Route & Trains pages.