COMMUNICATIONS GUIDE

FIELDBUS INTERFACE

DeviceNet protocol

To enable the DeviceNet physical interface, ensure that switches 1 and 2 of the DIP switch communications card (on the CPU module) are on. The external connections through the fieldbus interface are as follows.

Table 13: Fieldbus interface external connections (DeviceNet)

Path

Connection (external)

Wire color

 

 

 

V–

Pin 3, CAN_GND

Black

L

Pin 2, CAN_L

Blue

 

 

 

C

Pin 5, CAN_SHLD

Bare

 

 

 

H

Pin 7, CAN_H

White

 

 

 

V+

Pin 9, CAN_V

Red

 

 

 

The Modbus status (MS) and network status (NS) LEDs indicate the status of the Fieldbus interface.

Table 14: DeviceNet LED indications

LED

LED operation

Description

 

 

 

MS

Green on, red on, green on

Device self-test

 

 

 

 

Flashing green

Device in standby state

 

 

 

 

Green on

Device operational

 

 

 

 

Flashing red

Recoverable fault

 

 

 

 

Red on

Unrecoverable fault

 

 

 

NS

Flashing green

Online, not connected

 

 

 

 

Green on

Online, connected

 

 

 

 

Flashing red

Connection timeout

 

 

 

 

Red on

Critical link failure

 

 

 

 

Red and green

Network access detected

 

 

 

When used for DeviceNet, the fieldbus port has the following characteristics.

Baud rate: 125, 250, and 500 kbps

MAC ID: 0 to 63

Vendor ID: 928

Product Code: 0x4D39

Message types: poll, and explicit messaging

DeviceNet Communications

The device profile is an extension of the Communications Adapter Device Profile (0xC0). It is a group 2 only server. The MAC ID and baud rate are programmable through the EnerVista MM300 Setup software and the Graphical Control Panel. The MM300 supports the following DeviceNet object classes.

CLASS

OBJECT

 

 

01H

Identify

 

 

02H

Message Router

 

 

03H

DeviceNet

 

 

05H

Connection

 

 

A0H

Generic Data - Polling/Explicit

 

 

B1H

Explicit Control Writes

 

 

B0H

Analog Data - Explicit

 

 

MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE

57

Page 61
Image 61
GE MM300 manual DeviceNet Communications, Fieldbus interface external connections DeviceNet, DeviceNet LED indications

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.