Rockwell-automation 61C345 4 Input 4-20mA Analog Rail Module Manuale Utente Scaricare il pdf (Pagina 41)

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A/D CONTROL

ISOLATION

BOUNDARY

-

+

-

+

-

+

-

+

4-20mA INPUT

4-20mA INPUT

4-20mA INPUT

4-20mA INPUT

VREF

VREF

VREF

VREF

FILTER

SAMPLE/

HOLD

ANALOG

DIGITAL

CONVERTER

ISOLATED POWER

ISOLATED

ANALOG

POWER

AĆC

AĆC

DĆC-

DĆC+

MUX

OVER/UNDER

RANGE DETECT

CIRCUITRY

VREF

PRECISION

VOLTAGE REF

VREF

MAIN

CONTROL

CIRCUITRY

RESET

CIRCUITRY

ISOLATED CONTROL SIGNALS

POWER LED

COMMUNICATION LED

PARALLELĆ

SERIAL

REGISTER

ISOLATED

CONTROL

CIRCUITRY

S

I

G

N

A

L

S

DATA BUS

Vcc

HOST

INTERFACE

CIRCUITRY

SERIAL HOST INTERFACE

LOCAL HEAD OR RAIL MODE SWITCH

GND

12 PNT.

HOST

CONNECTOR

FILTER

FILTER

FILTER

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