COMMUNICATIONS GUIDE

RS485 INTERFACE (MODBUS RTU)

The commands that can be performed by the MM300 using function code 05 can also be initiated by using function code 10.

Operation Code

Description

 

 

1

Reset

 

 

2

Lockout Reset

 

 

3

Stop

 

 

4

Start A

 

 

5

Start B

 

 

96

Clear Last Trip Data Prompt

 

 

97

Reset MWh and Mvarh Meters

 

 

99

Clear Counters

 

 

100

Clear Event Records

 

 

102

Clear Maintenance Timer

 

 

112

Clear RTD Maximums

 

 

113

Reset Motor Information

 

 

114

Auto Mode

 

 

115

Manual Mode

 

 

116

Manual Inhibit

 

 

117

Manual Restore

 

 

Function Code 06H

Modbus Implementation: Preset Single Register

MM300 Implementation: Store Single Setpoint

This command allows the master to store a single setpoint into the memory of a MM300 The slave response to this function code is to echo the entire master transmission.

For example, request slave 17 to store the value 2 in setpoint address 04 5C. After the transmission in this example is complete, setpoints address 04 5C will contain the value

01F4. The master/slave packet format is shown below:

Table 4: Master/slave packet format for function code 06H

MASTER TRANSMISSION

BYTES

EXAMPLE

DESCRIPTION

 

 

 

 

SLAVE ADDRESS

1

11

message for slave

 

 

 

17

 

 

 

 

FUNCTION CODE

1

06

store single

 

 

 

setpoint

 

 

 

 

DATA STARTING ADDRESS

2

04 5C

setpoint address

 

 

 

04 5C

 

 

 

 

DATA

2

00 02

data for setpoint

 

 

 

address 04 5C

 

 

 

 

CRC

2

CB B9

CRC error code

 

 

 

 

MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE

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GE MM300 manual Function Code 06H, Master/slave packet format for function code 06H, Data, CRC CB B9

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.