Bulldozer ® 09-Sep-2014 11:38

Programmable Logic Controllers (Fifth edition)

Year: 2009
Language: english
Author: W.Bolton
Publisher: Newnes
Format: PDF
Quality: OCR without errors
Number of pages: 398
Description: This book, an introduction to PLCs, aims to ease the tasks of practicing engineers coming
into contact with PLCs for the first time. It also provides a basic course for students in
curricula such as the English technicians’ courses for Nationals and Higher Nationals in
Engineering, giving full syllabus coverage of the National and Higher National in
Engineering units, company training programs, and serving as an introduction for first-year
undergraduate courses in engineering.
The book addresses the problem of various programmable control manufacturers using
different nomenclature and program forms by describing the principles involved and
illustrating them with examples from a range of manufacturers. The text includes:
• The basic architecture of PLCs and the characteristics of commonly used input and
outputs to such systems
• A discussion of the number systems: denary, binary, octal, hexadecimal, and BCD
• A painstaking methodical introduction, with many illustrations, describing how to
program PLCs, whatever the manufacturer, and how to use internal relays, timers,
counters, shift registers, sequencers, and data-handling facilities
• Consideration of the standards given by IEC 1131-3 and the programming methods of
ladder, functional block diagram, instruction list, structured text, and sequential function
• Many worked examples, multiple-choice questions, and problems to assist the reader
in developing the skills necessary to write programs for programmable logic
controllers, with answers to all multiple-choice questions and problems given at the end
of the book
Rating: 4.9 / 5 (Votes: 19)
Bulldozer ® 11-Sep-2014 17:09
Двое суток прошло, 0 байт. В другой раздаче сутки - аналогично.
Я прошу прощения,но ничего поделать не могу,не знаю почему так. SERVER скачал-тяните у него. Возможно,роутер надо прошить,смотрю у него с покупки прошивка не обновлялась,но роутер не мой
ArtGal27 11-Sep-2014 17:47
У меня постоянно тоже самое с моими раздачами.
Несколько дней никто ничего скачать не может.
А потом как прорвало.
Иногда отдаю в день 30 мб, иногда 30-40 Гб.
GOOGLE BOT 11-Sep-2014 17:47
zxc 12-Sep-2014 05:19
Может просто никто не качает? Одно дело когда один сид и сотня качающих. Если хотя бы у парочки будут открытые порты,то скачка пойдёт весело. Но как правило у всех порты закрыты. Вот и приходится ждать когда раздачу скачает SERVER.
Нужно смотреть вкладку трекеры в клиенте для проблемных раздач. Статус подключения. Если статус В ожидании подключения то канал забит значит

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