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53 Cards in this Set

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What is the base for the decimal system?
the base is 10
What components make up a basic DC solenoid?
1. coil of wire
2. iron core plunger
what is the base for the octal system?
the base is 8
What components make up a basic AC solenoid?
1. coild of wire
2. iron core plunger
3. frame
what is the base for the binary system?
the base is 2
define bit
a single binary digit
define nibble
4 bits
define byte
8 bits
define word
16 bits
define double word
32 bits
define LSB
is the lest significant bit and is the furthest right digit, represents the minimum bit value of a byte or word
What is the difference between program files and data files in a PLC system?
Program files store the ladder logic files and Data files hold instructions or memory locations
Output
0
O
Input
1
I
Status
2
S
Binary
3
B
Timer
4
T
Counter
5
C
Control
6
R
Integer
7
N
Float
8
F
Define and draw XIC
An instruction that is true if the addressed bit is on and false if the addressed bit is off; refers to open contact instructions.
-I I-
Define and draw XIO
An instruction that is true if the addressed bit is off and false if the addressed bit is on; refers to closed contact instructions
-I/I-
Define PLC
Programmable Logic Controller, a special purpose computer designed for single use or one of several controllers on an automation network for the control of a wide variety of manufacturing machines and systems using one of five programming languages.
define scan time
the time required to read all inputs, update all outputs, and execute the control program; it is not a constant.
~1 millisecond per 1000 bytes of program memory used.
Define and draw OTE
output energized
-( )-
Define and draw OTU
output unlached
-(U)-
Define and draw OTL
output lached
-(L)-
In capacitor sensors the target acts as the sensors ______________________
__second capacitor plate.
What kind of light is used for long distance sensors?
A laser
What is NOT part of a solenoid?
a) armature
b) core
c) contacts
d) spring
c) contacts
Example of AND logic
Example of OR logic
example of XOR logic
example of inverter logic
example of NAND logic
example of NOR logic
example of AND/OR logic
example of OR/AND logic
Normally Open Timed Closed
NOTC
Normally Open Timed Open
NOTO
Normally Closed Timed Open
NCTO
Normally Closed Timed Closed
NCTC
List the On-Delay timing relays
NOTC and NCTO
List the Off-Delay timing relays
NOTO and NCTC
define TON
Timer ON-Delay
coil energizes and timer starts counting. Timed contacts change state after time delay value is reached and remain in that changed state until the coil is de-energized.
define TOF
Timer Off-Delay
Coil energizes and timed contacts IMMEDIATELY change state and remain in that state until the coil is de-energized. Once coil is de-energized then the timed contacts remain in their changed state until the set time delay value is reached. once reached the timed contacts return to their initial state.
define MSB
is the most significant bit and is the furthest left digit, represents the greatest bit value of a byte or word
define Time Base
the time segment that the PLC timers increment up
List PLC data file organization;
File identifier, File number, and file type
O-0-Output
I-1- Input
S-2-Status
B-3-Binary
T-4-Timer
C-5-Counter
R-6-Control
N-7-Integer
F-8-Float
define Preset Value
this integer value is the number of time increments that the timer must accumulate to reach the desired time delay.
What are the main parts to a modular PLC?
1. Backplane
2. Processor (CPU)
3. Power Supply
4. Input Modules
5. Output Modules
define accumulator value
indicates the number of increments that the timer has accumulated while the timer rung and instruction are active.