PLC Basics

Learn programming PLC the easy way.

Saturday, 30 January 2010 11:07

PLC-COURSE.COM presents the ultimate PLC training experience to learn PLC programming. Our video tutorials will bring you right into the world of PLC explaining what you need to know to understand the fundamentals. This PLC training is a step-by-step introduction using siemens LOGO!

Video Tutorial available from UPDATE! May 2010... We are working hard on bringing this plc tutorial. It will be available very soon. Stay tuned to plc-course.com!

LOGO! offers solutions for domestic and installation engineering applications such as stairway lighting, external lighting, sun blinds, shutters, shop window lighting and more; switch cabinet engineering, as well as for mechanical and apparatus engineering such as gate control systems, air-conditioning systems, rand ainwater pumps. LOGO! can also be implemented for special control systems in conservatories or greenhouses, for control signal processing and, by connecting a communication module such as an AS--i module, for distributed local controlling of machines and processes. It provides an additional display that is wider than the Basic module. It has four function keys that you can program in your circuit program as inputs. Like the LOGO! Basic module, it has four cursor keys, an ESC and OK key that you can also program in your circuit program and use for navigation on the LOGO!

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Last Updated ( Tuesday, 09 March 2010 21:26 )

PLC Fundamentals - THE NUMBER SYSTEM

Wednesday, 09 September 2009 19:44

THE DECIMAL NUMBER SYSTEM

Decimal number system characteristic is the linear array of digits and also their significant placing.For example number 4324 can be represented :

4324 = 4x1000 + 3x100 + 2x10 + 4x1

Number 4 on the left is of differing significance to that of number 4 on the right.

The fundamental of the decimal number system is the availability of 10 different digits.They permit counting from 0 to 9. If counting is to excees the number 9, this constitutes acarry over to the next place digit.The significance of this place is 10, and the next carry over takes place when 99 is reached.

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Last Updated ( Sunday, 27 December 2009 18:56 )

Ladder Logic Fundamentals and Programming Examples - PLC Tutorial

Sunday, 03 May 2009 18:59

Ladder Logic Fundamentals and Programming Examples - PLC Tutorial

Logical continuity vs. electrical continuity
I/O Mapping
Mastering examine onon and examine off instructions
The PLC scanning process

PLC Programming Languages

In the United States, ladder logic is the most popular
method used to program a PLC
This course will focus primarily on ladder logic programming
Other programming methods include:
… Function block diagrams (FBDs)
… Structured text (ST)
… Instruction List (IL)
… Sequential function charts (SFCs)

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Last Updated ( Sunday, 27 December 2009 18:51 )

How to connect S7-300 PLC to a computer?

Thursday, 30 April 2009 16:00

This PLC tutorial will tell you how to connect you PLC to a computer. You will learn what kind of cables you can use. How to download and upload Siemens drivers etc.

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Last Updated ( Sunday, 27 December 2009 18:59 )

How to diagnose PLC errors?

Sunday, 26 April 2009 21:50

The whole work of PLC controller can be represented with a diagram shown on the following page. After turning on the power, PLC is first initialized (clearing IR, SR i AR areas, presetting system timers and checking I/O lines), and if no errors were detected, monitoring process, program execution, calling the I/O lines and serving the peripheral devices starts to occur in cycles.

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Last Updated ( Sunday, 27 December 2009 19:02 )