ROBOTICS #24
1.Discrete Control: Signals (variables and parameters) are discrete,
mostly binary discrete (1's or 0's).
2.Continuous Control are also known as: Regulatory Control
3.Continuous (Regulatory) Control: Signals (variables and parameters)
are con- tinuously changing.
4.What are signals?: Variables and parameters.
5.What is Automation?: The control of an industrial process
(manufacturing, process, production, and so on) by automation
rather than manual means.
6.What is a model?: A precise representation of a system's dynamics.
7.A precise representation of a system's dynamics is called a .-
: Model
8.What does PLC stand for?: Programmable logic controller
9.A is a unit of hardware used to control and automate an
industrial process.: PLC
10.A is a special purpose computer aimed at implementing control
solutions.: PLC
11.What is a PLC?: A programmable logic controller is a unit of hardware
used to control and automate an industrial process. A PLC is a special
purpose computer aimed at implementing control solutions.
12.What is the intended use for PLCs ?: Intended to be used by users
without any great knowledge of programming. Therefore, LADDER
PROGRAMMING was developed.
13.What is LADDER PROGRAMMING?: Graphic PLC programming
languages which expresses logic operations with symbolic notation.
Ladder logic is made of rungs of logic, forming what looks like a ladder
- hence the name 'Ladder Logic'.
14.A of a ladder diagram code can contain both input and output
instructions.: rung
15. of ladder diagrams are solved from left to right and top to bottom.-
: Rungs
16. within rungs are solved top left to bottom right.: Branches
17.What is a branch?: Two or more instructions in parallel. There is no
limit to the number of parallel branch levels that you can enter.
18.What does a "coil" represent?: An output device such as a solenoid
valve, motor, or relay. It may also represent an internal storage bit for
,use elsewhere in the program.
19.Whats is a contact in ladder logic?: A fundamental element used to
create logical conditions in control systems. A contact is analogous to
a push button and only has two states: open or closed.
20.A is analogous to a push button.: contact
, 21.How many states does a contact have?: 2 (open or closed)
22.Describe each part of the image.:
23.What does TON stand for?: Timer, On-Delay
24.What is the purpose of TON?: Increases an internal timer up to a given
value.
25.What is the purpose of CTU?: CTU (count up) counts (integers) from 0
up to a given value, 1 by 1.
26.Describe each part of the image.:
27.What is an HMI?: HMI terminals are operator interface devices for
monitoring and controlling devices that are attached to a controller.
28.What does HMI stand for?: Human Machine Interface
29.What is the purpose of Equal?: Performs an operation that compares
the first input to the second input to determine equality.
30.What does VFD stand for?: Variable Frequency Drive
31.What is a VFD?: Type of motor controller that drives an electric motor
by varying the frequency and voltage of its power supply. The VFD also
has the capacity to control ramp-up and ramp-down of the motor during
start or stop, respectively.
32.The also has the capacity to control ramp-up and ramp-down
of the motor during start or stop, respectively.: VFD
33.What is a sequence?: In industrial automation, a sequence is merely a
series of actions required to be taken to achieve a specific outcome
arranged in an orderly fashion.
34.What is a cycle sequence?: A cycle sequence moves through the
sequence steps and when the final step is completed the sequence
automatically restarts from the beginning and keeps repeating the
sequence until a stop command is initiated.