TABLE OF CONTENTS

Table of Contents

COMMUNICATIONS GUIDE

i

Communications interfaces

1

RS485 interface (Modbus RTU)

2

Modbus Protocol

2

Electrical Interface

2

Data Frame Format and Data Rate

2

Data Packet Format

2

Error Checking

3

CRC-16 Algorithm

3

Timing

4

MM300 supported functions

4

Modbus Functions

4

Function Code 03H

4

Function Code 04H

5

Function Code 05H

6

Function Code 06H

7

Function Code 07H

8

Function Code 08H

9

Function Code 10H

9

Error Responses

10

Modbus memory map

11

Format codes

34

Performing Commands Using Function Code 10H

49

Using the User Definable Memory Map

50

Ethernet interface

52

Fieldbus interface

53

Profibus protocol (DP V0)

53

Profibus Output Data

53

Profibus DP-Diagnostics

54

Profibus Input Data

54

DeviceNet protocol

57

DeviceNet Communications

57

Identity Object (Class Code 01H)

58

Message Router (Class Code 02H)

58

DeviceNet Object (Class Code 03H)

58

DeviceNet Connection Object (Class Code 05H)

59

DeviceNet Motor Data - Poll, Explicit Object (Class Code A0H)

60

DeviceNet - Explicit Motor Analog Data Object, Class Code B0H, Services

62

DeviceNet - Explicit Motor Object, Class Code B1H

65

MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE

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GE MM300 manual Table of Contents

MM300 specifications

The GE MM300 is a robust and versatile controller designed primarily for industrial automation applications. Built to tackle the demands of modern manufacturing environments, this controller offers a range of features that contribute to its popularity among engineers and operators.

One of the standout features of the GE MM300 is its scalability. The device can be easily configured to meet the needs of both small and large systems. Its modular architecture allows users to add or remove components based on the specific requirements of their applications, facilitating a more tailored approach to automation.

The MM300 supports various communication protocols, including Ethernet/IP, Modbus TCP, and more, ensuring seamless integration with a variety of devices and systems. This feature significantly enhances interoperability, allowing users to connect the controller to existing infrastructure without extensive reconfiguration.

In terms of processing power, the MM300 is equipped with a high-performance processor that can handle complex tasks with ease. With advanced data handling capabilities, it supports real-time data processing, enabling faster decision-making and improving overall operational efficiency. This capability is particularly beneficial for applications requiring precise control and monitoring.

Moreover, the GE MM300 boasts a user-friendly interface, featuring an intuitive programming environment that simplifies the development of control applications. This includes an integrated development environment (IDE) and support for popular programming languages, making it accessible for both seasoned programmers and those new to automation technologies.

The device is designed to operate in challenging industrial conditions, featuring a rugged construction that ensures durability and longevity. Its ability to withstand extreme temperatures, vibrations, and other environmental stressors enhances its reliability in demanding applications, which is crucial for minimizing downtime in production processes.

Security is another critical aspect of the GE MM300. The controller incorporates advanced security features to protect against unauthorized access and cyber threats, helping organizations ensure the integrity of their operations.

In summary, the GE MM300 stands out due to its scalability, versatile communication options, high processing capabilities, user-friendly programming environment, rugged design, and security features. These characteristics make it a reliable choice for industries seeking to enhance their automation processes and improve overall efficiency. Whether for small-scale or large-scale applications, the MM300 provides a comprehensive solution to meet the evolving needs of modern manufacturing.