Pepper-computer Modular Computers RS485 Manuale Utente Scaricare il pdf (Pagina 139)

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101

Digital Modules

08 Jan. 98

SMART I/O User’s Manual

Page 4 - 53Manual ID 09901, Rev. Index 0500

4.4 SM-ACI1

4.4.1Introduction

The SM-ACI1 provides eight optoisolated 80 V AC to 264 V

AC inputs arranged in six independent groups with respect to

common neutral connections. The input frequency range is 47-

63 Hz, with the system registering a logical ’1’ when the input is

active. A logical ’0’ is returned when the input is no longer

active. However, a low-pass filter restricts signals exceeding the

filter limit, thus registering a logical ’0’ with the system.

The user interface is realized by eight green LEDs (one per input

channel), which switch on when the inputs are energized, and by

a configurable filter on the last channel used for INTx interrupts,

that can be mounted on the specific interrupt slots envisaged for

this purpose.

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Pepper-computer Modular Computers RS485 Manuale Utente Pagina 139

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