Authors :
Durgesh Lingampalle; Manisankar Dhabal; O P Ullas
Volume/Issue :
Volume 7 - 2022, Issue 10 - October
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3MIGt4c
DOI :
https://doi.org/10.5281/zenodo.7226959
Abstract :
PLC and SCADA-based automation systems
are the most widely used industrial automation systems
today, owing to their numerous advantages. The
specialized requirements and customization in various
aspects of radiological once through ventilation system
necessitate the requirement of efficient control and
modernization in existing hardwired interlocked system.
With the existing hardwired interlocking between the
sub systems, there were certain operational challenges
and unsafe operating conditions. The existing system
lacked certain key features such as Working/Standby
changeover and Mains/Standby selection for any sub
system. Also, the manual regulation of control
equipments in event of system changeover and during
the normal operation manual throttling of damper
actuators to achieve desired optimum performance, lead
to inefficient control. This arose the requirement of
sophisticated advanced automation system for simple
and safe operation. The automation system with
utilization of PLC and SCADA systems including the
networking components represents the most efficient
way to improve the radiological once through ventilation
system. This paper elucidates the various design criteria
& features, as well as the sizing and selection of various
automation components, and the development activities
performed for implementation of hot standby PLC and
redundant SCADA based monitoring and control system
for radiological once through ventilation systems
catering to an important facility at BARC South Site
Trombay.
Keywords :
PLC, SCADA, HMI, DI, DO, AI, RS485, Ethernet, RTU PCC, MCC
PLC and SCADA-based automation systems
are the most widely used industrial automation systems
today, owing to their numerous advantages. The
specialized requirements and customization in various
aspects of radiological once through ventilation system
necessitate the requirement of efficient control and
modernization in existing hardwired interlocked system.
With the existing hardwired interlocking between the
sub systems, there were certain operational challenges
and unsafe operating conditions. The existing system
lacked certain key features such as Working/Standby
changeover and Mains/Standby selection for any sub
system. Also, the manual regulation of control
equipments in event of system changeover and during
the normal operation manual throttling of damper
actuators to achieve desired optimum performance, lead
to inefficient control. This arose the requirement of
sophisticated advanced automation system for simple
and safe operation. The automation system with
utilization of PLC and SCADA systems including the
networking components represents the most efficient
way to improve the radiological once through ventilation
system. This paper elucidates the various design criteria
& features, as well as the sizing and selection of various
automation components, and the development activities
performed for implementation of hot standby PLC and
redundant SCADA based monitoring and control system
for radiological once through ventilation systems
catering to an important facility at BARC South Site
Trombay.
Keywords :
PLC, SCADA, HMI, DI, DO, AI, RS485, Ethernet, RTU PCC, MCC
