Manufacturing Messaging Specification

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The Standard Manufacturing Messaging Specification (MMS) is used for the object-oriented exchange of data in the production area and is used to link distributed automation systems. It is specified in accordance with ISO standard 9506 (message formats for manufacturing purposes).

MAP / MMS was created in the 1980s as a project at General Motors with the aim of integrating various manufacturing systems through a uniform communication interface. This work resulted in the ISO 9506 standard in 1988. Important characteristics of MAP / MMS are:

  • The general usability in various applications. So-called 'Companion Standards' contain detailed specifications for certain device types (NC, robots etc.), but are based exclusively on general MMS services.
  • Defined objects (variables, programs, events etc.) and their services
  • An object abstracts the implementation-dependent characteristics (e.g. memory addressing); the symbol-oriented access is implemented on the server side
  • The MMS telegram definition is detached from the transport protocol used and the network physics (e.g. serial with ADLC, Ethernet via OSI and TCP / IP)
  • The transmission of the syntactic information for the data decoding in the telegram, thus browsing the server objects is possible
  • Increase in data throughput through appropriate network physics (e.g. 100BaseT)
  • Low costs through the use of standard components from the office area (network cards, routers, address allocation)

The standard is the basis for the transmission protocol IEC 60870-6 ( TASE.2 ), the communication standard IEC 61850 uses MMS in part 8-1 with Ethernet as the transmission technology (so-called specific mapping).

See also

Individual evidence

  1. ↑ IEC 61850-8-1 , accessed January 28, 2015