I-O Display Systems Basic I/O Product manual Introduction, I/O signal compatibility, 1-2Vol.2

Introduction 1

I/O signal compatibility:

BASIC I/O ADs use duTec I/O modules to match signal requirements exactly. With a direct interface to sensors, no external signal conditioning is required. Furthermore, all duTec modules feature total electrical isolation, both module to logic and module to module. Analog modules are available to measure:

!Millivolts DC to hundreds of volts AC

!Milliamps DC to amps AC

!Frequency to tens of Khz

!Temperature with all popular thermocouples and restive temperature devices

A full range of industry standard digital modules are available for AC, DC, and dry contact inputs and outputs to hundreds of volts.

Thermocouple modules provide a cold reference junction compensation. BASIC I/O AD instructions provide linearized thermocouple and RTD sensor data. Engineering unit conversions are handled at the host lever.

Diagnostics:

To confirm internal operations and communications link integrity, a set of built-in diagnostics test key system functions each time power is applied. Diagnostics reduce both installation debugging and operation troubleshooting.

A hardware watchdog timer insures safe shutdown in the event of processor or software failures by turning all outputs OFF. Normally ON modules are available for those loads that must remain ON.

Communications watchdogs:

The BASIC I/O AD can be instructed to implement alarm and fail-safe states in the event of a communication failure.

Easy setup:

The BASIC I/O AD uses a pushbutton and an on board LED indicator to configure the unit address, analog VS digital map and baud rate.

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