Complete Control of Alarm Annunciation

The process alarm interface has become one of the most important features of process control systems. The proliferation of alarm capability and ease with which more alarms are being added is astounding. The process operators' responsibility to monitor these alarms is normally a reasonable task. However, when a significant failure in the process occurs, the alarm system itself can become dangerous if the flood of alarms is too great for the operator to handle.

ProSys recognized this problem and implemented its first successful alarm management application in 1990. We have continued to develop and enhance our software, providing the most effective tools available for managing alarm annunciation.

First released in 1995, Dynamic Configuration Software (DCS) has become the most widely used real-time dynamic alarm management software worldwide. DCS consists of five independent but compatible software modules and Special Alarm Management (SAM).

These modules provide the capability to manipulate any alarm point parameter, releasing the power of your TPS / TDC3000 system and giving you complete control of alarm annunciation. Further, each alarm can be managed on a Full-Cycle basis to re-enable when they are clear of any alarm condition or when reminding (re-alarming) is desired.

Alarm Combo Module (ACM)

  • Global Alarm Module (ALM) - provides a mechanism to dynamically eliminate unnecessary alarms during process upsets, start-ups and shutdowns.
  • Analog Alarm Module (AAL) - provides a mechanism to dynamically reconfigure alarm priorities and trip limits for analog points during process upsets, start-ups and shutdowns.
  • Selector Module (SEL) - provides the intelligence to dynamically configure the system for the current process state. The module executes configurable logic to command the execution of appropriate action modules. These action modules then reconfigure the control system parameters.

Analog Alarm Module Selector Module

Configuration Module (CNF)

The Configuration Module (CNF) provides a dynamic mechanism to reconfigure the system for start-ups, shutdowns and operating mode changes. Alarm and non-alarm parameters can be configured; therefore, the configuration of control and alarm points is always appropriate for the current operating mode. 

  • Information Module (ITF) - provides a dynamic mechanism to directly and indirectly interact with the operator through messages, allowing a number of new ways to inform the operator of specific events or requirements and to incorporate custom functionality into dynamic configuration schemes.
  • Selector Module (SEL) - provides the intelligence to dynamically configure the system for the current process state. The module executes configurable logic to command the execution of appropriate action modules. These action modules then reconfigure the control system parameters.

Configuration Module Information Module Selector Module

Special Alarm Management Module (SAM)

The Special Alarm Management (SAM) Module eliminates nuisance, chattering and status information from the alarm screen by shelving alarms. SAM is easily accessible to operators by the touch of a button. The security features provided by SAM give engineers total flexibility over the alarms that can be managed by the operator. Further, each alarm can be managed on a Full-Cycle basis to re-enable when they are clear of any alarm condition or when reminding (re-alarming) is desired. SAM is a remarkable tool that allows alarm shelving.

SAM provides a mechanism to eliminate many types of unnecessary alarms during normal run, process upsets, start-ups and shutdowns. Further, each alarm can be managed on a Full-Cycle basis to re-enable when they are clear of any alarm condition or when reminding (re-alarming) is desired. 

Product Data Sheet

Related Technical Articles

View All Technical Articles

Blog Post

Rationale for Alarm Rationalization

Blog Post

Who is Your Alarm Management Champion?

White Paper

Blog Post

When Converting Your DCS, Don’t Forget Your Alarm Management System!