ולידציה – URS Contents
This article was written by Iian Shaya, validation,automation and control expert
A URS usually presents the user's requirements for installing and operating a system designed to monitor and control specified conditions at its facility
:The user's requirements may be divided into 4 categories
Installation Requirements
Operation Requirements
Installation Requirements
These requirements are intended to cover all the issues regarding system installation to ensure its proper functionality and reliability. Examples of this type of requirements are:
List of required hardware (HW) components, such as system PC, Programmable Logic Controller* (PLC), and varied environmental conditions sensors and control devices
Labeling and identification requirements for each HW component
Requirements for the software (SW) programs installed on the system PC
Storage capacity
Required connections to various types of sensors, communication units, temperature, humidity and pressure transmitters, illumination devices, etc
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
Computerized system capabilities and starting conditions
System capabilities to recover from failures
Internal tests to be performed regularly, and alarm indications to be issued in case of failure
Provision of current and historical alarms regarding all parameters in any case of deviation from the limits specified in the system
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
Capability of configuring the graphs parameters according to
Date and time
Measured parameters
Predefined number of displayed parameters
Trend graphs with maximum and minimum allowed limits of the monitored parameters
Logging interval defined by the user and configured by the supplier
Capability of authorized user's personnel to define low and high limits and delay time for each alarm parameter
.On URS regulatory & HMI Requirements you can find out in our this link: URS – Regulatory & HMI Requirements
*Here are some examples of the PLCs used by smartlogic: 6XV1830-0EH10, 6ES7131-4BF00-0AA0,6ES7193-4CA40-0AA0,6ES7134-4GD00-0AB0,6ES7193-4CA40-0AA0, 6ES7138-4CA01-0AA0,6ES7193-4CC20-0AA0, 6ES7590-1AB60-0AA0, 6ES7511-1AK00-0AB0, 6ES7954-8LP01-0AA0,6ES7155-6AU00-0BN0
This article was written by Iian Shaya, validation,automation and control expert