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Computer Integrated Manufacturing: Computer
Networks for Manufacturing
CHAPTER 4:
4.1 Hierarchy of Computers in Manufacturing
4.2 Communication Standards
4.3 Manufacturing Automation Protocol
UNIVERSITI TEKNOLOGI MARA
FACULTY OF MECHANICAL ENGINEERING
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Hierarachy of Computers in
Manufacturing
Fourth level
Third level
Second level
First level
Operations
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COMMUNICATION
STANDARDS
In a manufacturing cell, machines
&equipment are all bought from different
vendors
different microprocessors &
computers.
This create islands of automation where
communication cannot be done beyond that
cell. Hence, a standard communication is
required.
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ISO/OSI REFERENCE MODEL Refer to OSI & MAP notes. Each layer
has a special task:
Mechanical & electronic means of data transmission.
Error detection & correction.
Correct transmission of the message.
Control of the dialog between users. Translation of the message
into a common syntax.
Verification that the data transferred has been
understood.
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Manufacturing Automation
Protocol (MAP) A set of protocol standards designed for use in
a
factory.
Bus network configuration, broadbandtransmission, token-passing
access scheme, data
transmission rate of 10 megabits per second.
Technical Office Protocol (TOP)
for Officeautomation.
MAP / TOP established for the factory level
and offices in all levels of an organization.
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Artificial Intelligence To simulate human behaviors on
computers.
AI can exhibit learning, reasoning, problem
solving, understand language, etc.
Expert system
Artificial neural networks
Fuzzy logic
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