EC: Logix Batch and Sequence Manager
Process control systems: Rockwell Automation Logix Batch and Sequence Manager. The Logix Batch and Sequence Manager enables design engineers to configure sequences directly in the controller through a standard user interface. This is a Control Engineering 2011 Engineers' Choice (EC) nominee.
The Logix Batch and Sequence Manager, which is part of the Rockwell Automation PlantPAx Process Automation System, solves a wide range of local, controller-based batch and sequencing needs, enabling users to configure sequences directly in the controller. For system integrators, this feature eliminates the need for engineering-intensive custom code, while OEMs can now design a common process control solution for end customers requiring local sequencing that can easily integrate into a larger plantwide solution. The Logix Batch and Sequence Manager is ideal for standalone units like mixers, blenders and reactors that require flexibility in the sequence (procedures) of the process and the formulas (setpoints) for the recipe. It is also well suited for common continuous sequencing applications such as process startup/shutdown, grade changes and cleaning skid control.
Many applications require sequence management capabilities, but the complexity of the process may not be great enough to warrant a server-based batch software package. This new solution allows the user to start small, but if at any point the requirements grow, users can simply migrate the Logix Batch and Sequence Manager into a comprehensive software solution like FactoryTalk Batch without costly re-engineering and testing. Today, most custom controller-based recipe management solutions only allow for setpoint downloads to a fixed sequence. As a result, when the sequence must change, users are forced to change the code. This adds risk to the process and can add significant cost to retest and validate the system.
Logix Batch and Sequence Manager gives these users the configuration tools needed to change both the sequence and formula through a standard tool. Additionally, the application comes with intuitive, pre-developed configuration and run-time human-machine interface screens for easier runtime control and maintenance. The application is based on ISA88 standards, which provide a consistent framework for the application.
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