И то и другое (+) («Телесистемы»: Конференция «Микроконтроллеры и их применение»)

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Отправлено dk 02 июля 2002 г. 15:21 В ответ на: Ответ: DS7516 этож RS-485, вроде, а у Fieldbus и Profibus PA на физ.уровне используется IEC 1158, нормальную инфу, на него, второй день уже ищу. отправлено Gerg 02 июля 2002 г. 13:51

What is PROFIBUS-PA?
Profibus-PA is the solution for process automation, connecting automation systems and decentralised field devices. Profibus-PA is based on Profibus-DP (acc. to EN 50170) and permits a transparent communication from general purpose automation to process automation. The Profibus-PA profile defines the behaviour of the field devices and ensures full interoperability and interchangeability of the field devices from different manufacturers. Profibus-PA operates either with intrinsic safe transmission technology (acc. to IEC 1158-2) or standard transmission technology (acc. to RS485). PA fulfils the special requirements of the process automation industry e.g. chemical or petrochemical applications.

The transparent communication between process automation and general purpose automation is permitted by Profibus-PA.

Profibus-PA permits powering of the stations and data transmission over the same two wires. PA can be used within areas with high explosion risk using intrinsic safe transmission technology according to IEC 1158-2.

Intrinsic safe and non-intrinsic safe bus segments are separated by segment couplers.

• Убедили PA может быть организована на 485, но мне от этого не легче. Мне IEC 1158 нужен, т.е. инфа на него. — Gerg   (02.07.2002 15:37, пустое)