Table of Contents

1. Introduction

1.1. Overview

1.2. Running ModTest

1.3. The GUI

1.4. Setup overview

1.5. Saving and restoring the configuration

2. Settings

2.1. General settings

2.2. Interface settings

2.3. 32/64-bit Value Settings

3. Commands

3.1. Defining commands

3.2. Command table

3.3. Viewing and editing command definitions

4. Logging

5. Tracing

5.1. Raw data tracing

5.2. Message tracing

A. Troubleshooting

1. Communications

2. Sending commands

3. Miscellaneous

B. Release Notes

C. Modbus protocol documents

D. Message size limits