PVL3704 EXAMINATION SCRIPT FINAL
PAPER QUESTIONS AND ANSWERS
COMPLETE SOLUTION BUNDLE
●● Architecture
Answer: Refers to PLC hardware or software
●● Open architecture
Answer: Allows the system to be connected easily to devices and
programs made by other manufacturers
●● Closed architecture
Answer: A system whose design is proprietary making it difficult to
connect to other systems
●● Fixed I/O
Answer: Small PLC that comes in one package with not separate
removable units. The processor and I/O are packaged together
●● Modular I/O
Answer: A PLC that is divided by compartments into which separate
modules can be plugged
,●● Power supply
Answer: Provides DC power to all modules that plug into the rack
●● CPU or processor
Answer: A microprocessor for implementing the logic and controlling
the communications among the modules
●● PLC scan cycle
Answer: Reads inputs -> executes program -> diagnostics &
communication -> updates outputs
●● I/O (Input/Output) system
Answer: Forms the interface by which field devices are connected to the
controller.
●● I/O (Input/Output) system
Answer: Forms the interface by which field devices are connected to the
controller
●● Programming device
Answer: Used to enter the desired program into the memory of the
processor
,●● Personal computer (PC)
Answer: The most commonly used programming device
●● Program
Answer: A series of instructions that directs the PLC to execute actions
●● Relay ladder logic
Answer: The standard programming language, is based on
electromagnetic relay control
●● Address
Answer: Where an input or output device is conncected
●● PC vs PLC
Answer: PLC is designed to operate in the industrial environment with
wide ranges of ambient temperature and humidity
●● Human machine interface (HMI)
Answer: Software that allows the user to monitor and control the process
●● Programmable Automation Controllers (PACs)
Answer: Combine PLC ruggedness with PC
functionality
, ●● Nano
Answer: Smallest size with less than 15 I/O
●● Micro
Answer: 15-128 I/O
●● Medium
Answer: 128-512 I/O
●● Large
Answer: Over 512 I/O
●● Single ended application
Answer: One PLC controlling one process
●● Multitask application
Answer: One PLC controlling several processes
●● Control management application
Answer: One PLC controlling several others
PAPER QUESTIONS AND ANSWERS
COMPLETE SOLUTION BUNDLE
●● Architecture
Answer: Refers to PLC hardware or software
●● Open architecture
Answer: Allows the system to be connected easily to devices and
programs made by other manufacturers
●● Closed architecture
Answer: A system whose design is proprietary making it difficult to
connect to other systems
●● Fixed I/O
Answer: Small PLC that comes in one package with not separate
removable units. The processor and I/O are packaged together
●● Modular I/O
Answer: A PLC that is divided by compartments into which separate
modules can be plugged
,●● Power supply
Answer: Provides DC power to all modules that plug into the rack
●● CPU or processor
Answer: A microprocessor for implementing the logic and controlling
the communications among the modules
●● PLC scan cycle
Answer: Reads inputs -> executes program -> diagnostics &
communication -> updates outputs
●● I/O (Input/Output) system
Answer: Forms the interface by which field devices are connected to the
controller.
●● I/O (Input/Output) system
Answer: Forms the interface by which field devices are connected to the
controller
●● Programming device
Answer: Used to enter the desired program into the memory of the
processor
,●● Personal computer (PC)
Answer: The most commonly used programming device
●● Program
Answer: A series of instructions that directs the PLC to execute actions
●● Relay ladder logic
Answer: The standard programming language, is based on
electromagnetic relay control
●● Address
Answer: Where an input or output device is conncected
●● PC vs PLC
Answer: PLC is designed to operate in the industrial environment with
wide ranges of ambient temperature and humidity
●● Human machine interface (HMI)
Answer: Software that allows the user to monitor and control the process
●● Programmable Automation Controllers (PACs)
Answer: Combine PLC ruggedness with PC
functionality
, ●● Nano
Answer: Smallest size with less than 15 I/O
●● Micro
Answer: 15-128 I/O
●● Medium
Answer: 128-512 I/O
●● Large
Answer: Over 512 I/O
●● Single ended application
Answer: One PLC controlling one process
●● Multitask application
Answer: One PLC controlling several processes
●● Control management application
Answer: One PLC controlling several others
