Manual de instrucciones de BEA Multim

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MULTIBEAM USER'S GUIDE



DESCRIPTION
This interface system has been developed to be the link between a programmable controller and a 16

Microcell-type beam. This system simplifies the wiring of the beams and reduces the number of

connections to the controller by using an RS485 intelligent communication. The control of the beams
being entirely in the hands of the interface system, the controller is free for other duties.

SPECIAL

The product is composed of two modules: one

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Functional wiring structure: FUNCTIONNAL DESCRIPTION 5 wires Receiving module Emitting module Address 1 Controller Communication and supply 16 times Receivers Emitters Receiving module Emitting module Address 2 16 times Receivers Emitters WIRING AND On the receiving module 16 red LEDs show the status of each beam. Plug connectors with 3.5 mm INSTALLATION pitch are used. The 2 twisted wires enable the connection of each h

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COMMUNICA – TION STUCTURE 1. Hardware : The communication module uses the standard RS485, the driver is a low EMI 250 Kbits-type, protected against electrostatic discharges. Up to 32 terminals may be connected on the same BUS line. The twin-wire communication enables the Half Duplex operating mode. A dip-switch enables you to choose the operating mode of the MULTIBEAM. Be aware to always make an “on/off” operation on the MULTIBEAM after each modification to the dip-switches in order

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COMMUNICA – Calculating the time of a cycle TION STUCTURE Beams process time : 20.000ms Transfer time of the frame to the MB at 9600 bps : 9.75ms Waiting time between interrogation and answer : 1.50ms Transfer time of the answer from the MB at 9600 bps : 13.54ms Total time of a 9600 bps cycle : 44.8 ms Beams process time : 20.000ms Transfer time of the frame to the MB at 19200 bps : 4.69ms Waiting time between interrogation and answer : 1.50ms Tra