Industrial processes regardless of complexity and size of safety systems and equipment require an ongoing assessment of their safety performance. A means to oversee and track these systems is an effective method of satisfying this requirement and if implemented correctly, can meet the needs of technical authorities and regulatory bodies.
Exaquantum/SFM collects all safety related data to keep track and analyze key safety performance metrics including, Safety Instrumented Functions (SIF) activations, Independent Layers of Protection (ILP), initiating causes and overrides.
By accessing this safety performance data, the information provided can assist plant managers in the monitoring of safety performance, identify any potential safety issues, reduce unnecessary maintenance activities and improve the overall safety solution design.
Exaquantum Safety Function Monitoring is a management tool developed to monitor safety performance in response to the growing pressure from regulations and legislation regarding safety reporting and assessments. Exaquantum/SFM collects, processes and presents safety data to enable monitoring and analysis of key safety KPIs such as SIF (Safety Instrumented Functions) activations, ILPs (Independent Layers of Protection), initiating causes and overrides. This information assists users to:
Improvement of plant safety and availability throughout safety life cycle
SFM is an integrated, plant-wide solution for Safety Monitoring that:
The underlying Exaquantum historian provides Exaquantum/SFM with a powerful, integrated, cost-effective platform for collecting and storing data from different sources via OPC DA, OPC A&E and OPC HDA independent of the system vendor. OPC HDA has been expanded within Exaopc (Yokogawa’s OPC server) to allow historical Alarms & Events to be recovered following a communications interruption.
Risk Assessment (HAZOP, LOPA)
Exaquantum/SFM is configured with the safety design expectations derived from the HAZOP and (if conducted) LOPA risk assessments. This information is compared against the actual operational safety function activity that assists users in highlighting issues, helping to support the validation of safety demand rates and can help to optimize test scheduling. These findings can then be checked and verified against the base data within the defined SIS.
Web User Interface
Exaquantum/SFM provides secure web based displays and reports for user access from local or remote locations and does not require any client software to be installed.
An overview of user filtered SIF KPIs is provided, allowing users to monitor and view the following information:
Identification of SIF Activations
Exaquantum/SFM provides comprehensive Alarm & Events monitoring capabilities to assist management in the identification of SIF Activations. These activations are then converted into Reports, Overview screens and SIF Activation lists, all of which provide users with a clear picture as to which SIFs have activated, and more importantly, which activations can be assessed and verified against the SIS base data.
SIF Activation Analysis
When SIF Activations take place, Exaquantum/SFM records key associated data that can be used to better understand the effect of the activation.
Exaquantum/SFM records the following information:
SIF Activation Verification
Exaquantum/SFM can be used as a mechanism to show which SIFs have been activated, which can then be verified against the SIS base data. This verification process establishes the SIF Activation reason(s), which is also known as the ‘Initiating Cause’. The Initiating Cause(s) are derived from the safety design and imported into Exaquantum/SFM. When an Initiating Cause has not been identified in the safety design, Exaquantum/SFM allows a new Initiating Cause(s) to be defined that is displayed in various Exaquantum/SFM reports. These reports can verify against the safety design to initiate improvements.
SIF Initiating Causes are monitored against the safety design. This provides a valuable understanding of the actual demand versus the expected demand. The Exaquantum/SFM traffic light system provides users an early warning sign when Initiating Causes have exceeded their expected design frequency.
Monitoring Overrides and Inhibits
Exaquantum/SFM monitors SIF overrides, inhibits and their protection layers. This provides critical information in the understanding of SIFs having sufficient protection and are maintaining their designed SILs.
Exaquantum/SFM provides dynamic reports for all information displayed on the web interface with the ability for users to select fields and drill into data as well as filtering and sorting by almost all fields being displayed.
Reports contain SIS information for the following areas:
Reports can be exported to multiple formats (such as Excel, Word and PDF) and scheduled to be emailed at configurable periods.
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