ולידציה -FRS Contents
This article was written by Iian Shaya, validation,automation and control expert
The FRS presents functional requirements for installing and operating a monitoring and control system, in response to and compliance with the user’s requirements
For example, the FRS may propose to fulfill the URS requirements using a system that includes a PC with control capabilities using HMI screens, PLC, and varied environmental conditions sensors and control devices. The FRS may also propose a color-code display for ongoing environmental conditions, including indications of alarm conditions. An SMS or e-mail notification may be sent to specified personnel in case of specified alarm conditions.
The FRS requirements are organized accordingly with the same order and numbering of sections as the URS for clear correspondence. These requirements are divided into 4 categories- as the user’s requirements
Installation Requirements
Operation Requirements
Regulation Requirements
HMI Requirements
Installation Requirements
These requirements cover all the issues regarding system installation to ensure its proper functionality and reliability. Examples of this type of requirements are
List and characteristics of specified hardware (HW) components capable of meeting the system functional requirements
Labeling and identification method for each HW component
List and characteristics of specified software (SW) programs installed on the system PC and the PLC, capable of performing the required operations
Definition of equipment to meet the storage capacity requirements
Definition of equipment and method for achieving the required connections to various types of sensors, communication units, temperature, humidity and pressure transmitters, illumination devices, etc
Definition of equipment and method for achieving the communication compatibility with equipment already installed at the user’s facility without extra sensors
Operation Requirements
These requirements cover all the operations that the system must be capable of performing. Examples of this type of requirements are
Environmental conditions (such as pressure, temperature and humidity) to be monitored and controlled
Type of systems to be monitored and controlled, such as Heating, Ventilation and Air Conditioning (HVAC) system, types of sensors, etc
Definition of computerized system capabilities and starting conditions
Definition of system capabilities to recover from failures
List of internal tests to be performed regularly, and alarm indications to be issued in case of failure
Definition of current and historical alarms to be provided regarding all parameters in any case of deviation from the limits specified in the system
Definition of system real-time screens display capabilities
Provision of the following data and HMI displays
Synoptic screens for displaying online values and status
Data logging and storage of historical trends, events and alarms
Tabular screens for displaying events and alarms
Graphical screens for displaying trends
Display of the following information for each alarm
Status -new/acknowledged alarm
Time at which the alarm was activated
Parameter/Tag/Name of the module that activated the alarm
Alarm Description
Alarm Priority
Display of alarms to warn the user, collect alarm history, and enable the user to view current and historical alarms. The system alarms shall include
Component malfunction/failure
Irregularity in parameter reading – such as disconnection of communication lines
Parameters values exceeding the high/low parameter limits
Deviations of system operation from predefined parameters/operations
Method for providing capability to configure the graphs parameters according to
Date and time
Measured parameters
Predefined number of displayed parameters
Definition of trend graphs with maximum and minimum allowed limits of the monitored parameters
Definition of logging interval defined by the user and configured by the supplier
Method for providing capability of authorized user’s personnel to define low and high limits and delay time for each
alarm parameter
On FRS regulatory & HMI Requirements you can find out in our next article
This article was written by Iian Shaya, validation,automation and control expert
