Configuring the Filling and Dosing Application

Figure 7-6Overshoot compensation and flow

Overfill

No overshoot compensation

Flow

Target

Transmitter issues

Valve closes

reached

 

Close valve command

Compensation

factor

Overshoot compensation

Flow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmitter issues

Valve closes

Target

Close valve command

 

 

Three types of overshoot compensation can be configured:

•Fixed – The valve will close at the point defined by the target minus the quantity specified in

Fixed Overshoot Comp.

•Underfill – The valve will close at the point defined by the AOC coefficient calculated during AOC calibration, adjusted to ensure that the actual quantity delivered never exceeds the target. (The initial adjusted target is less than the actual target, and moves upward toward the target during calibration.)

•Overfill – The valve will close at the point defined by the AOC coefficient calculated during AOC calibration, adjusted to ensure that the actual quantity delivered is never less than the target. (The variance of the fills is added to the AOC-adjusted target.)

AOC calibration is required only if Underfill or Overfill is configured. There are two forms of AOC calibration:

•Standard – Several fills are run during a special “calibration period.” The AOC coefficient is calculated from data collected from these fills. See Section 7.5.2 for instructions on the standard AOC calibration procedure.

•Rolling – The AOC coefficient is calculated from data collected from the x most recent fills, where x is the value specified for AOC Window Length. There is no special calibration period. For example, if AOC Window Length is set to 10, the first AOC coefficient is calculated from the first ten fills. When the eleventh fill is run, the AOC coefficient is recalculated, based on the ten most recent fills, and so on. No special calibration procedure is required.

Using the Transmitter

Optional Configuration

Filler Configuration

Using the Filler

Configuration and Use Manual

63

Page 70 Page 72
Page 71
Image 71
Emerson Process Management 1500 manual Close valve command, Fixed Overshoot Comp
Page 70 Page 72

1500 specifications

Emerson Process Management 1500 is a cutting-edge distributed control system designed to enhance operational efficiency, safety, and reliability in industrial processes. Renowned for its robust architecture and scalable features, the 1500 system caters to various sectors, including oil and gas, pharmaceuticals, chemicals, and utilities.

One of the standout features of the Emerson 1500 is its modular design, allowing users to customize and scale the system according to their specific needs. This flexibility ensures that operations can grow and adapt without requiring a complete system overhaul. The control system supports a range of I/O modules, enabling integration with various field devices and technologies.

The Emerson 1500 employs advanced control algorithms to optimize process performance. This includes model predictive control (MPC) and multivariable control, which enhance the ability to manage complex processes through predictive analytics. This predictive capability not only improves operational efficiency but also reduces downtime and maintenance costs.

In addition to its advanced control features, the 1500 system is known for its user-friendly interface. Operators can easily navigate the system through intuitive graphics and dashboards, allowing them to monitor processes in real time. This ease of use significantly reduces training time and improves response times during operational changes or emergencies.

Security is a critical concern for modern industrial control systems, and the Emerson 1500 addresses this with a multi-layered security framework. This includes secure communications, robust authentication, and access controls, ensuring that only authorized personnel can interact with the system.

The Emerson Process Management 1500 also emphasizes interoperability, supporting various communication protocols such as Ethernet/IP, Modbus, and HART, facilitating seamless integration with existing infrastructure. This capability is particularly advantageous for organizations looking to modernize their systems without entirely replacing legacy equipment.

Furthermore, the system supports advanced data analytics and cloud connectivity, allowing organizations to leverage big data for predictive maintenance, performance benchmarking, and decision-making processes. By harnessing the power of data, users can achieve greater efficiencies and drive continuous improvement across their operations.

In summary, the Emerson Process Management 1500 is a versatile and advanced distributed control system characterized by modularity, advanced control features, user-friendliness, robust security, interoperability, and data analytics capabilities. Its comprehensive approach ensures that industries can not only meet current operational demands but also prepare for future challenges in an ever-evolving landscape.
Top Page Image Contents