Cascade data acquisition and evaluation system - is controlled by microprocessor and uses two input module banks in expandable arrangement

摘要

A cascadable microprocessor controlled system for acquisition and evaluation of digital measurement values is esp. applicable to statistical measurement in connection with data traffic situations in multiprocessor systems. It is a compact system controllable by microprocessor which can be expanded to posses a large number of inputs. A number of identical input modules (M1-M16) each has a number pref. 16, of inputs connected to measurement value valve inputs and an output which can cut as a measurement value source for a second bank of input modules providing inputs to an evaluating unit or measurement value memory in the form of a microcomputer with a constant sampling interval. The modules are interrogated using a conventional interrupt control arrangement involving mains and subsidiary cycle.