Table of Contents
- 1 What are the advantages of programmable logic device?
- 2 What are the advantages of programmable logic controller compared with hard wired controller?
- 3 What are the advantages and disadvantages of PLA?
- 4 Which of the following benefit is provided by programmable logic controller?
- 5 What is a programmable logic device (PAL)?
What are the advantages of programmable logic device?
Advantages of programmable logic devices:
- Low development cost.
- Less space requirement.
- Less power requirement.
- It is easy to troubleshoot.
- Less design time.
- High switching speed.
- High design security.
- Easy design modification.
What are the advantages of PLDs over fixed function IC’s?
1. Reduction in board space requirement. 2. Reduction in power requirement.
What is the advantage of PLA over rom?
PLA too is made of two OR and AND arrays, but both the arrays are configurable unlike in ROM. This also provides a ‘Sum of Products’ term, but in a different way. Since terms for AND gates are also possible, it can give more product terms like AB, BC’, C etc.
What are the advantages of programmable logic controller compared with hard wired controller?
1. Flexible in Nature: One model of PLC can be used for different operations as per requirement. 2. Easy to install and trouble shooting: In hard wired relay based systems, installation time is more as compared to the PLC based control panels.
What are programmable devices?
Programmable devices usually refers to chips that incorporate. These include Field Programmable Logic Devices (FPGAs), Complex Programmable Logic Devices (CPLD) and Programmable Logic Devices (PLD, PLA, PAL, GAL). There are also devices that are the analog equivalent of these called field programmable analog arrays.
What are sequential programmable devices?
Field‐programmable gate array (FPGA) 1. Sequential (or simple) programmable logic device (SPLD) The sequential PLD is sometimes referred to as a simple PLD to differentiate it from the complex PLD. The SPLD includes flip‐flops, in addition to the AND–OR array, within the integrated circuit chip.
What are the advantages and disadvantages of PLA?
PLA
| PROS | CONS |
|---|---|
| + Can be printed on a cold surface | – Can deform because of heat (like a cassette in a car) |
| + More environmental-friendly | – Less sturdy (than ABS) |
| + Shinier and smoother appearance | |
| + Smells sweet when being print =) |
What are PAL and PLA logic design state their differences?
The main difference among these two is that PAL can be designed with a collection of AND gates and fixed collection of OR gates whereas PLA can be designed with a programmable array of AND although a fixed collection of OR gate. A programmable logic device offers a simple as well as flexible logic circuit designing.
Where is programmable logic array used?
PLA is used for the implementation of various combinational circuits using a buffer, AND gate and OR gate. In PLA, all the minterms are not realized but only required minterms are implemented.
Which of the following benefit is provided by programmable logic controller?
Flexibility: One single Programmable Logic Controller can easily run many machines. Correcting Errors: In old days, with wired relay-type panels, any program alterations required time for rewiring of panels and devices. With PLC control any change in circuit design or sequence is as simple as retyping the logic.
What are the advantages of programmable logic devices?
Programmable logic devices offer a number of important advantages over fixed logic devices, including: Design Flexibility: PLDs offer customers much more flexibility during the design cycle because design iterations are simply a matter of changing the programming file, and the results of design changes can be seen immediately in working parts.
What are the advantages of PLDs over fixed ICS?
Few advantages of PLDs over fixed IC’s :: Reduction in board space requirement. Reduction in power requirement. Design security.
What is a programmable logic device (PAL)?
PAL is a programmable logic device that has Programmable AND array & fixed OR array. The advantage of PAL is that we can generate only the required product terms of Boolean function instead of generating all the min terms by using programmable AND gates. The block diagram of PAL is shown in the following figure.
What are complex programmable logic devices (CPLDs)?
Complex programmable logic devices feature predictable timing characteristics that make them ideal for critical, high-performance control applications. Typically, CPLDs have a shorter and more predictable delay than FPGAs and other programmable logic devices.