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Integrated solutions for SCADA and other mission-critical applications
Industrial automation and critical infrastructure applications such as data acquisition and control (SCADA) systems require consistent and secure reliability. Equipment and processes are usually automated with reliable programmable logic controllers (PLCs) and other “smart” devices, but PCs are still required for system organization, data storage, human-machine border (HMI), and other SCADA task.
Traditional PC hardwares and software options are simply not
reliable or reliable enough and are often difficult for maintenance personnel
to maintain. Addressing these shortcomings requires dedicated computing
platforms in combination with thin client software technologies for SCADA and
other more critical applications.
In information technology (IT), computing and networking
must balance confidentiality, integrity, and availability (known as the
"CIA" triad) in this order of priority.
Confidentiality ensures that only authorized users can
receive data.
Integrity guarantees data accuracy
Accessibility causes certain access data to be restricted
to authorized users.
In a plant or infrastructure, Operational Technology (OT)
requires other priorities to keep running, namely "AIC".
Availability comes first to ensure systems can work
Honesty comes second as the system needs to be trusted.
Confidentiality often comes directly behind two other supplies.
Availability, integrity, and privacy for SCADA and other
critical infrastructure, compute and manufacturing are typically achieved
through dedicated IT offerings to provide redundant hardware and software. IT
professionals are experts in computers and networks, but much less
knowledgeable about OT software, hardware, and operating systems. OT employees
understand automation, but they may not be in the best position to manage heavy
computing and networking equipment. Therefore, a better solution is needed to
ensure the AIC in a cost-effective and sustainable manner.
In response to these tests, users can deploy Stratus ztC
Edge systems in conjunction with Rockwell Automation ThinManager to provide
virtual machines (VMs) and Remote Desktop Services (RDS) as needed for their
SCADA and other OT applications.
Stratus ztC Edge systems consist of two load balancing nodes
(nodes 0 and 1). With this configuration and the associated built-in hardware
and software, they provide built-in redundancy and smooth failover.
A typical configuration is to deploy four virtual machines
on a ztC Edge system, with each virtual machine execution the next errands:
Server # 1: Active Almanack domain controller, DHCP server,
DNS server
Server # 2: Primary HMI Application Server
(in this case Rockwell Automation FactoryTalk View and
related services)
Server # 3: Secondary HMI Request Servers
Server # 4: ThinManager, HMI clients, PLC software design
software
This configuration provides an operating kernel. Note that
Server # 1 is loaded with sharing between nodes 0 and 1, while Server # 2 is
assigned to node 0 and Server # 3 is assigned to node 1. Thus, even if the node
becomes unavailable, there will be an active HMI server applications. works
continuously on another node.
ThinManager is required to seamlessly handle multiple remote thin clients served by primary / secondary application servers. In the same way that ztC Edge effectively ensures reliable hardware operation, ThinManager ensures reliable software delivery regardless of any underlying flaws.
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