3.Activate the enter key (switch 3) to display the sub menu: hour’, ‘minute’, ‘seconds’.

4.Activate the up arrow key (switch 1) to change the current hour/minute/second settings, then use switch 2 to cycle across ‘hour’, ‘minute’, ‘seconds’ values and ‘OK’.

5.After desired settings are made, navigate to ‘OK’ and activate the enter key (switch 3) to confirm. To exit main menu, select “Exit” at each menu stage (sub menu and main menu).

4.3.2View Event Log

The Millennium II Transmitter has the ability to store up to 980 events. Events can be viewed by navigating through this menu option. The most recent events are shown first.

1.Enter the main menu by activating any key to get the “enter main menu” prompt, then activate switch 1 to select “yes”.

2.Navigate through the main menu using switch1 or switch 2 until “View Event Log?” is displayed.

3.Activate the enter key (switch 3) to display the sub menu. The most recent event will be displayed.

4.Select the up arrow key (switch 1) and the down arrow key (switch 2) to toggle through all past events.

6.After viewing, select “Exit” at each menu stage (sub menu and main menu). The on-screen Events Format/host includes:

•Channel Number: CH1, CH2, or transmitter: ML2. Events that occurred under these formats will be logged.

•Event Types: There are a total of 11 events that are stored and displayed. See Table 5 for a list of the events, and how they are displayed on the Millennium II screen.

•Date and Time: Each event is date and time stamped.

Table 5: Event Types

Event Types

Display on Screen

Events Format /host

Power up or Reset

Power UP / RST

ML2

Communication Fault

Communication Err

CH1 or CH2

High Level Alarm

High Alarm

CH1 or CH2

Low Level Alarm

Low Alarm

CH1 or CH2

Calibration Completed

Cal Complete

CH1 or CH2

Calibration Zero Failed

Cal Zero fail

CH1 or CH2

Calibration Span Fail

Cal Span Fail

CH1 or CH2

Calibration Aborted

Cal Abort

CH1 or CH2

Sensor Fail

Sensor Fail

CH1 or CH2

Channel Enabled

Enabled

CH1 or CH2

Channel Disabled

Disabled

CH1 or CH2

32

MAN-0076 Rev 05 Millennium II December 07, 2012

Net Safety Monitoring Inc

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Emerson M22, M21 user manual View Event Log, Event Types Display on Screen Events Format /host
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M22, M21 specifications

The Emerson M21 and M22 are advanced industrial controllers designed to enhance process automation and operational efficiency in various industries. Emerson, a leader in automation technology, introduced these models to meet the growing demands for precision, reliability, and connectivity in today’s fast-paced industrial environments.

One of the standout features of the M21 and M22 controllers is their robust processing power. They are equipped with high-speed processors that enable rapid data processing and real-time decision-making. This capability allows users to respond promptly to changing process conditions, ensuring optimal performance and minimizing downtime.

The M21 and M22 offer versatile connectivity options, supporting various communication protocols such as Ethernet, Modbus, and TCP/IP. This extensive connectivity facilitates seamless integration into existing systems, allowing for easy collaboration between devices across different platforms. Users can monitor and control processes from virtually anywhere, providing flexibility and convenience.

Scalability is another essential characteristic of the M21 and M22. These controllers can easily adapt to growing operational demands, enabling businesses to expand their automation solutions without the need for complete overhauls. Whether you're running a small system or a large, complex operation, these controllers can scale to meet your needs.

Furthermore, Emerson has incorporated advanced diagnostic and predictive maintenance features into the M21 and M22 models. These technologies leverage data analytics to predict potential failures before they occur, allowing users to take proactive measures. This not only minimizes unexpected downtime but also extends the lifespan of equipment, contributing to overall cost savings.

In terms of user interface, the M21 and M22 come with intuitive software that provides easy navigation and configuration. The interface is designed to be user-friendly, reducing the learning curve for new operators and allowing for efficient setup and management of processes.

Finally, both controllers are built with a focus on reliability and durability, making them suitable for various industrial environments, including harsh or demanding settings. Their robust design ensures consistent performance, even in challenging conditions.

In summary, the Emerson M21 and M22 controllers represent cutting-edge solutions in industrial automation, offering high processing power, flexible connectivity, scalability, advanced maintenance features, user-friendly interfaces, and robust design. Companies looking to enhance their automation capabilities will find these controllers to be valuable assets in achieving operational excellence.
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