interbus - Onlinecomponents.com

Explanation of Terms
Configuration Frame
The configuration frame defines the bus architecture
including the device-specific parameters (ID code, length
code, logical device number, group number). It is stored in a
memory area on the controller board. The configuration frame
can either be specified by the user (e.g., using CMD) or read
automatically by the controller board from the bus.
Multi-Port Memory (MPM)
The MPM is a memory on the controller board, which can be
accessed by several MPM accessors. The MPM accessors
store all the data that is to be shared in the MPM.
Possible MPM accessors are, for example, the processor of
a control or computer system, an INTERBUS controller board
or the processor of a coprocessor board.
Figure 30
0 I J2 +
The MPM as the central interface
MPM Accessor
The MPM accessors write and read data to and from a shared
memory, the MPM.
(For error codes 093x hex , the V.24 interface is to be regarded
as an MPM accessor.)
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