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53 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is the base for the decimal system?
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the base is 10
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What components make up a basic DC solenoid?
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1. coil of wire
2. iron core plunger |
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what is the base for the octal system?
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the base is 8
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What components make up a basic AC solenoid?
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1. coild of wire
2. iron core plunger 3. frame |
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what is the base for the binary system?
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the base is 2
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define bit
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a single binary digit
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define nibble
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4 bits
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define byte
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8 bits
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define word
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16 bits
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define double word
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32 bits
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define LSB
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is the lest significant bit and is the furthest right digit, represents the minimum bit value of a byte or word
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What is the difference between program files and data files in a PLC system?
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Program files store the ladder logic files and Data files hold instructions or memory locations
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Output
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0
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O |
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Input
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1
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I |
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Status
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2
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S |
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Binary
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3
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B |
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Timer
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4
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T |
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Counter
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5
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C |
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Control
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6
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R |
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Integer
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7
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N |
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Float
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8
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F |
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Define and draw XIC
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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- |
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Define and draw XIO
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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- |
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Define PLC
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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.
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define scan time
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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. |
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Define and draw OTE
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output energized
-( )- |
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Define and draw OTU
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output unlached
-(U)- |
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Define and draw OTL
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output lached
-(L)- |
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In capacitor sensors the target acts as the sensors ______________________
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__second capacitor plate.
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What kind of light is used for long distance sensors?
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A laser
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What is NOT part of a solenoid?
a) armature b) core c) contacts d) spring |
c) contacts
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Example of AND logic
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Example of OR logic
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example of XOR logic
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example of inverter logic
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example of NAND logic
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example of NOR logic
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example of AND/OR logic
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example of OR/AND logic
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Normally Open Timed Closed
NOTC |
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Normally Open Timed Open
NOTO |
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Normally Closed Timed Open
NCTO |
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Normally Closed Timed Closed
NCTC |
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List the On-Delay timing relays
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NOTC and NCTO
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List the Off-Delay timing relays
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NOTO and NCTC
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define TON
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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. |
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define TOF
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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. |
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define MSB
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is the most significant bit and is the furthest left digit, represents the greatest bit value of a byte or word
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define Time Base
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the time segment that the PLC timers increment up
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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 |
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define Preset Value
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this integer value is the number of time increments that the timer must accumulate to reach the desired time delay.
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What are the main parts to a modular PLC?
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1. Backplane
2. Processor (CPU) 3. Power Supply 4. Input Modules 5. Output Modules |
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define accumulator value
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indicates the number of increments that the timer has accumulated while the timer rung and instruction are active.
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