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"PLC" is the replacement of sequential ckts(and,or gates).relay logics.before the development of plc,s relay logics uses approx 1000,s of wires and 100,s of connections.and the main problem with relay logics is that these wires wered replaced and repaired annualy ,which is a very difficult task and time consumming.so plc is developed to solve the problem.(by faheem khan)comsats abbottabad
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Is Australia a developed or less developed country?
It is a developed country other developed countries include the uk, usa and germany. less developed countries are somalia, afganistan and lybia
How is America a developed country?
Developed
Is Chile a more developed country or less developed country?
more developed country.
Is Kenya a developed or developing country?
Developed
Who developed the scale and when did he developed it?
julia davies
Aims of plcs?
PLCs (programmable logic controllers) automate electromechanical processes in factories (particularly automobile factories) and amusement rides.
Where are all the tokens on wimpy boardwalk?
plcs
Why would relays be used in place of PLCs?
na tum jano na hum
Where to find software to program Allen bradley plcs?
Try the Allen Bradley website first?
What is good a job or business?
Programming PLCs is a good field and business to get in. The automation industry is growing at a rapid pace. Many new positions are open for people that can program and troubleshoot a PLC. The largest of the companies that manufacture PLCs are Allen Bradley, Siemens, and Schnieder.
Can factory talk hmi be used for slc500 plcs?
yes factory talk view can be connected to a scl500.
List seven distinct advantages that plcs offer over the conventional relay control system?
ambut...
What has the author Nikolaos Sfetsios written?
Nikolaos Sfetsios has written: 'A new high level language for programming PLCs'
What is profibus communicatio protocol?
Profibus is a field bus standard that contains a set of protocols (located in three levels of the OSI model) that make possible communication between PLCs and distributed I/O modules, HMIs, drives, et cetera. It was developed in the late 80s by several companies (including Siemens).
The 1981 winner of the Man Group PLCs Contemporary Fiction Prize was born in a city formerly known by what name?
Mumbai
Four tasks in addition to relay switching that PLCs are capable of performing?
I. Timing II. Counting III. Calculating IV. Comparing
PLC Training is a Great Way to Develop a New Career?
Due to many changes in the economy, many people have been forced to consider new career options. One possibility you should consider is PLC training. PLC stands for programmable logic controller. The PLC is a kind of computer first designed during the 1960’s and 70’s to replace incredibly complicated electrical systems in automobiles that at one time had to use a few hundred thousand different relays. Out of this effort to find a simpler way for automobile electronic systems to operate came the PLC. PLCs, unlike the kind of computers we are most used to, were designed with electrical technicians in mind as opposed to regular computer programmers. Due to this design influence many PLCs implement a computer language referred to as “ladder logic.” Ladder logic programming language is similar to the schematic design of circuits. The logic was that ladder logic would be easily understood by technicians and engineers without much new training. Many PLCs today still implement ladder logic. However, new programming languages are now used in a number of PLCs. These include BASIC programming as well as “state logic.” State logic is a kind of programming language specifically designed for use in PLCs that implements state transition diagrams that use a series of “tasks,” “states,” and “statements” to tell electronic systems what to do. State logic is considered one of the most advanced programming languages that exist. Due to the use of these complex programming languages and the use of multiple inputs and outputs, PLCs are implemented as a way to control the very intricate timed electrical processes of the many different components in a machine. Uses of PLCs across different industries are wide and varied. They are of course used in the assembly of automobiles for which they were designed. A PLC has probably told the traffic light you have stopped at to change from red to green. You may have even encountered one that told the roller coaster car you were riding in to slow down. Due to the many uses of PLCs and the specified knowledge it takes to work on one, PLC training is a great option for developing a brand new career.
