Motor Control 3: Lesson 6 - Programmable Logic Controllers Flashcards
A PLC is an industrial ______ designed to control manufacturing machines and systems.
a. computer
b. relay
c. starter
d. timer
a. computer
The architecture of the PC and PLC systems are similar with both featuring a motherboard, memory, expansion slots, and a(n) ______.
a. HMI
b. monitor
c. processor
c. processor
Which IEC standard programming language most closely replicates the control diagrams used in traditional magnetic motor control?
a. Function block diagrams
b. Instruction list
c. Ladder logic
d. Sequential function charts
e. Structured text
c.
Ladder logic
PLC programming is performed by ______ or by a personal computer connected directly to the processor or through a network connection.
a. a controller mounted programming interface
b. a handheld programmer
c. manufacturer preprogrammed interface
b.
a handheld programmer
In a ______ PLC, all of the appropriate sections such as the processor, power supply, input and output modules, and communication modules would be contained in a single unit.
a. modular
b. stand-alone
b.
stand-alone
The PLC ______ provides mechanical support for the PLC modules.
a. backplane
b. rack
b.
rack
The PLC ______ is a printed circuit board that delivers power to the modules and provides data bus for exchanging the data between the modules and the CPU.
a. backplane
b. rack
a.
backplane
In a fixed and modular PLC, ______ interfaces provide the link between the PLC and external devices such as switches and sensors.
a. input
b. output
a.
input
Devices, such as switches and sensors, motor starters, pilot lights, and solenoid valves, connected to a PLC are identified as ______ devices, indicating that they are not part of the PLC hardware.
a. field
b. local
c. panel
a.
field
______ modules in a modular PLC provide the link between the PLC and external devices, which measure process conditions.
a. Input
b. Output
a.
Input
In a fixed and modular PLC, ______ interfaces provide the link between the PLC and external devices such as lamps, motor starters, and solenoids.
a. input
b. output
b.
output
The two classifications of industrial electrical systems that PLCs are used to control are discrete parts manufacturing and process manufacturing.
True or False
true
The MicroLogix™ 1000 controller manufactured by Allen Bradley is a stand-alone controller and all inputs and outputs (I/O), both discrete and analog, can be connected to the main chassis of the controller.
True or False
true
Allen Bradley’s SLC500 and CLX5000 are _____ PLC systems.
a. modular
b. stand-alone
a. modular
Which type of manufacturing represents the production of durable goods such as automobiles, refrigerators, and components used in larger and smaller products?
a. Discrete parts
b. Process
a. discrete parts
