Answer / gajanand solanki

For Programming a PLC
1.First you should have PC . Then Appropriate software
Then Appropriate cable may be RS232,USB or Ethernet net
if you PLC Support that.
2.You should have knowledge of that software like
Programming in Ladder,SFC or Instruction List.

Answer / akash

1)should know the application of program properly
2)A pc with appropriate software.
3)should know any programming language (LAD,STL)
4)should know all inputs and outputs properly

Answer / neeraj sharma

1. should have a pc
2. should have a plc
3. should have network such as RS232 (Allen Bradley)
4. should have communication cable to communicate b/w plc & pc
ex. PM02 , CP3 etc
5. should have driver software
6. should have knowledge of programming (ladder logic , FBD , Structral text)

Answer / carl_ellis

You'd all fail my class for failure to mention these three
things:

- A project scope document
What is to be controlled, alarmed, displayed and
communicated? What is the purpose and what are the
functional criteria for the project? What are requirements
for acceptance of the project? What limits the
dreaded 'scope creep' ("Oh, I thought it would
include . . ." or "we need to add this")

I tell my pupils that the homework problem description
constitutes the 'scope' for purposes of a class, but in the
real world it might be a 400 page scope document, but
whatever form it takes, they should never accept a verbal
description, but should insist on a written document,
because that's what defines whether their programming meets
the standard of having been done properly.

- An I/O list is absolutely essential. What are the
inputs, what are the outputs?

- The PLC's documentation
Nobody remembers all the little syntax or functional
details. It's up to the programmer to look this stuff up
because in the real world, there's no 'teacher' to answer
the question about the timer's minimum interval.

Those three things are essential. Lack of any of the 3
constitutes negligence.

Lack of mention of any of the 3 ?in the 5 answers already
posted tells me your instructors are book people, not real
world PLC programmers.

------------------------------

Carl Ellis, Measure First

Answer / parmar jayesh

plc program is reqired for an appropriate output from an
specific input.

Answer / kailash luhar

input module, CPU CPU, POWER SUPPLY, outputn module. leader
logic.

what are the definitions of input, output, command & signal according to instruments controlled by PLC using DCS System?

0 Answers  

1. what is 3 point calibration & 5 point calibration? 2. If we use hart communicator to set the LRV & URV of a smart transmitter, did we calibrate the transmitter? why? 3. Make a complet list if meterials needed to properly connect a pressure gauge to a steam pipe using 1/2 inch stainless steel tubing. The gauge connections is 1/2 inch NPT-M and the steam pipe tap has a 1/2 inch female coupling, compression fittings are use. 4. What are the tools in loop checking? 5. What would the ISA symbol of a square root extractor look like? 6. What would you do to completely prepare for the configuration? 7. What safety measures must you undertake when doing configuration? 8. what are the two most commonly use programming languages used when we configure a PLC? 9. What would you do if you accidentally skipped a step in the configuration procedure? 10. How would you know if the configuration were sucessful? 11. Name at least 3 selections available when we configure the burnout protection of a controller?

3 Answers   EI Electrotechnical Institute,

What is cascade control in process instrumentation?

4 Answers   Engineers India, ITC Infotech,

what is written on orifice plate?

4 Answers  

I want to take temp. data from recorder to computer. Which communication system is best from this option(Rs 232- 485/ethernet/USB)?

3 Answers  

Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.

0 Answers  

Which softwere is required to communicate the S7-300 processor

4 Answers  

whatis range of marcury filled tempereture gague

0 Answers   Dr Reddys,

i install a DP transmitter of Faugi on drum level of boiler but i face a problem in it when i engergize the transmitter the meter shows 0 or 100% no variation in it.the distance of two points is 19.5 inches, i am in trouble please suggest me what can i do it's very urgent Please reply me as soon as possible Best regards ikraam haider

5 Answers  

what is the procedure of belt scale calibration?

0 Answers  

Close loop and open loop diagram for instrumentation

1 Answers   Petron ltd,

Can DP transmitter with orifice plate works on Beta ratio 0f 0.3 and differential pressure of 100 MMWC in liquid service application?

1 Answers