Multi-Point Interface
The Multi-Point Interface, Siemens (MPI) is a proprietary interface of the programmable logic controller SIMATIC S7 of the company Siemens.
It is used for connecting the stations programming (PC or personal computer), operator consoles, and other devices in the SIMATIC family. This technology has inspired the development of protocol Profibus.
The MPI is based on the standard EIA-485 (formerly RS-485) and works with a speed from 187.5 kBd to 12 MBd.
The network MPI must have resistance at the end of the line and it is generally included in the connector and activated by a simple switch.
Manufacturers using MPI technology offer a range of connections to a PC: MPI cards, PCMCIA cards, USB adapters or Ethernet.
Sources and credits
This article is adapted from the Wikipedia article “Multi-Point Interface”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.