Podcast
Questions and Answers
What is the primary function of input output modules in industrial automation?
What is the primary function of input output modules in industrial automation?
According to the Purdue model, the physical process level is where sensors detect things like flow rate and store them as digital signals inside the processors.
According to the Purdue model, the physical process level is where sensors detect things like flow rate and store them as digital signals inside the processors.
False
What is the traditional method of connecting sensor networks and instrumentation to controllers?
What is the traditional method of connecting sensor networks and instrumentation to controllers?
Hardwired electrical signals, such as 4 to 20 milliamps.
In the ISA S99 IEC 62443 standard, the various aspects of an OT network architecture are broken down into its various ____________________ components.
In the ISA S99 IEC 62443 standard, the various aspects of an OT network architecture are broken down into its various ____________________ components.
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Match the following terms with their definitions:
Match the following terms with their definitions:
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Many vendors are moving towards bus communications and wireless communications for connecting sensor networks and instrumentation to controllers.
Many vendors are moving towards bus communications and wireless communications for connecting sensor networks and instrumentation to controllers.
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Study Notes
Importance of Instrumentation and Output Controllers
- Instrumentation and output controllers are essential for managing inputs and outputs in operational technology (OT) networks.
- Inputs and outputs are mapped into memory addresses within controllers for effective control and monitoring.
Purdue Model and ISA S99 IEC 62443 Standard
- The Purdue model serves as a framework to analyze the architecture of OT networks, based on the ISA S99 IEC 62443 standard.
- It categorizes various components of an OT network into functional levels, enhancing understanding and management.
Physical Process Level
- At the ground level, sensors monitor conditions such as flow rate.
- Detected data is processed in real-time by analog or digital input cards and stored as digital signals within processors.
Input/Output Modules
- Input/output modules are digital devices that sense real-world conditions and directly influence physical processes in a facility.
- Automation relies on these modules to perceive environmental changes and control processes efficiently.
Traditional vs. Modern Communication Methods
- Traditionally, sensor networks utilized hardwired electrical signals (e.g., 4 to 20 milliamps) for connectivity to controllers.
- A notable shift towards bus communications and wireless technologies is occurring, allowing for flexible placements of sensors in extensive environments such as warehouses and outdoor facilities.
Module Structure
- The module will begin with a focus on wired input/output connections before exploring modern communication pathways.
- Hands-on exercises will provide practical experience with instrumentation and output controllers.
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Description
This module covers the importance of instrumentation and output controllers in industrial automation, including hands-on exercises and a breakdown of the Purdue model for OT networks according to the ISA S99 IEC 62443 standard.
