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PSU PLC EXAM1
Flashcards used for Test 1
| Question | Answer |
|---|---|
| What does PLC stand for? | Programmable Logic Controller |
| What PLC does our class use? | CompactLogix 5380 (5069 L306ERM) |
| Controllers can operate in more complex systems via... | EtherNet or IP network |
| 4 Types of supported Programming | Ladder Diagrams, Structured Text, Function Block Diagram, Sequential Function Chart |
| What is the End Cap? | The end cap covers the exposed interconnections on the last module in the system. |
| What do we use to program the PLC? | The Studio 5000 Automation Engineering & Design Environment |
| What does HMI stand for? | Human Machine Interface |
| How many tasks does our PLC support? | 32 |
| What is the MOD Power | System-side power that powers the system and lets modules transfer data and execute logic. |
| What is the SA Power | Field-side power that powers some Compact 5000 I/O modules and field-side devices that are connected to them. |
| Connections to the SA power bus use | A shared common |
| A communication driver is made using | Linx-based software (RSLinx Classic Gateway) |
| What is used to update the firmware | ControlFLASH |
| What are the 3 modes | RUN, REM, and PROG |
| When in RUN Mode | features like online editing, program downloads, and firmware updates are prohibited |
| When Controller mode is set to REM what can you do | Remote Run, Remote Program, Remote Test |
| What are the two methods to add local I/O modules to your project? | Discover Modules, New Module |
| What does Electronic Keying do? | reduces the possibility that you use the wrong device in a control system |
| What are the 3 Keying options? | Compatible Module, Disable Keying, Exact Match |
| What are the conditions for Compatible Module | • Same catalog number • Same or higher Major Revision • Minor Revision as follows: – If the Major Revision is the same, the Minor Revision must be the same or higher. – If the Major Revision is higher, the Minor Revision can be any number. |
| The Logix 5000 controller uses connections to transmit I/O data. These connections can be | Direct Connections or Rack-Optimized Connection |
| The name of a tag is based on | The location of the I/O module in the system |
| What is the address format (for actual I/O) | Location:Slot:Type.Member.bit Ex. Local:2:O.Pt00.Data |
| What are the 4 Tag Types | Base, Alias, Produced, Consumed |
| What is the minimum memory allocation for a Tag | 4 bytes |
| Controller Tags are ____________ while Task Tags or Parameters are __________________ | Global data, Local data |
| A _____________ lets you organize data to match your machine or process | User-defined Data type (Structure) |
| an __________ creates multiple instances of a data type under a common tag name | Array |
| Addressing Tag Data Format | Name[Element].Member[Element].Bit |
| A/An ____________ lets you create one tag that represents another | Alias Tag |
| Can operators be used to specify the subscript of an array | YES |
| Use a __________ to override data that your logic either uses or produces. | Force |
| How many tasks can the Logix 5000 controller run at a time? | 1 |
| A different task can __________ a task that is running and take control. | Interrupt |
| In any given task, how many programs can run at a time? | 1 |
| If you want a section of your logic to run all the time use | A Continuous Task |
| If used how many Continuous Tasks can there be? | 1 |
| If you want a section of your logic to run at a constant period or multiple times within the scan of your other logic use | A Periodic Task |
| If you want a section of your logic to run immediately when an event occurs use | An Event Task |
| Our DC Input I/O Card | 5069-IB16F |
| Our DC Output I/O Card | 5069-OB16 |
| Our Analog Input I/O Card | 5069-IY4 |
| Our Analog Output I/O Card | 5069-OF4 |
| If you have too many tasks then | The continuous task may take too long to complete |
| If a periodic or event task is triggered while another task is running, the __________ of each task indicates what the controller should do. | Priority |
| How many Priority Levels does the CompactLogix have? | 15 Levels |
| To share controller time between tasks... | Give them the same priority level, and it will switch back and forth every 1 ms |
| If Task 's Trigger occurs while the Event Task is already running what happens? | The trigger is disregarded |
| What is the instruction XIC | Examine if Closed -| |- (Enable outputs when a bit is set) |
| What is the instruction XIO | Examine if Open -|/|- (Enable outputs when a bit is cleared) |
| What is the instruction ONS | One Shot (Enable outputs for one scan each time a rung goes true) |
| What is the instruction OTE | Output Energize -( )- (Set a bit) |
| What is the instruction OTL | Output Latch -(L)- (Set a bit retentive) |
| What is the instruction OTU | Output Unlatch -(U)- (clear a bit retentive) |
| What is the instruction CTD | Count Down (NOTE THAT .CD IS INVERTED) |
| What is the instruction CTU | Count Up |
| What is the instruction RES | Reset (Resets the tag it is marked with) |
| What is the instruction TON | Timer On Delay (Time how long a timer is enabled) |
| What is the instruction TOF | Timer Off Delay (Time how long a timer is disabled, NOTE THAT .DN IS INVERTED) |
| What is the instruction RTO | Retentive Timer On (Keeps old value in timer when reset) |
| What is the instruction EQU | Equal to (Has source A and source B) |
| What is the instruction GRT | Greater Than (Has source A and source B) |
| What is the instruction GEQ | Greater Than or Equal to (Has source A and source B) |
| What is the instruction LES | Less Than (Has source A and source B) |
| What is the instruction LEQ | Less Than or Equal to (Has source A and source B) |
| What is the instruction LIM | Limit (If Test is between Low Limit and High Limit then True; Note that if Low Limit is larger than High Limit then it is True outside of the bounds rather than inside) |
| What is the instruction ADD | Add (Has Source A, Source B, and Destination ) |
| What is the instruction SUB | Subtract (Has Source A from which it subtracts Source B, and Destination ) |
| What is the instruction MUL | Multiply (Has Source A, Source B, and Destination ) |
| What is the instruction DIV | Divide (Has Source A which it divides by Source B, and Destination ) |
| What is the Preset of a counter | The value to reach before done |
| What are the parts of a Counter Structure | .CD or .CU (Countdown/up enable bit), .DN (The done bit) , .OV, (Overflow bit), .UN (Underflow bit), .PRE (Preset value), value to reach, .ACC (The accumulated value) |
| What are the parts of a Timer Structure | .EN , .TT (Timer Timing) , .DN , .PRE (value to reach), .ACC (accumulated value) |
| What is the instruction NEQ | Not Equal to (Has source A and source B) |
Created by:
francisman90
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