ABB Network Partner AB
Construction and hardware
characteristics - REC 561
Version 1.0-00
1MRK 580 148-XEN
Page 2 - 30
2.1 Main processing
module (MPM)
The terminal is based on a pipelined multi-processor design. The 32-bit
main controller receives the result from the Signal processing module
every millisecond. The controller also serves four serial links: one high-
speed CAN bus for Input/Output modules and three serial links for the
different types of MMI communication explained below.
The main controller makes all decisions, based on the information from
the Signal processing module and from the binary inputs. The decisions
are sent to the different output modules and to these communication ports:
• Built-in MMI module including a front-connected PC, if any, for
local man-machine communication
• LON communication port at the rear
• SPA communication port at the rear (option)
2.2 Signal processing
module (SPM)
All analogue data is received in all of the up to 12 (16 bits) digital signal
processors (DSP). In these DSPs, the main part of the filtering and the
calculations occur. The result from the calculations in the DSPs is sent
every millisecond on a parallel bus to the (32 bit) main controller on the
Main processing module.
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