High Level Analog Input System Modules

Three module types are included in the High Level

Analog Input subsystem: a Base Converter module, a

Current Expander module, and a Voltage Expander

module.  A typical subsystem will use a Base Convert

er module and (if required) one or more expander modules.

•Base Converter module – catalog number

IC697ALG230

This module has eight differential inputs and

an expansion port.  Each input can be individu

ally configured for either voltage or current.

Each of the input channels also has individual

user scaling.

On-board load resistors are included for normal

input current ranges up to Ç 40 mA.  If other

current ranges or different resolution is re

quired, external resistors may be used.

Standard system configurations for Ç 10 volts

and 4 to 20 mA are available.  These, and other

lower input ranges, can be scaled to engineer

ing units with the user scaling feature.