GE IC697ALG230 Base Converter Module Expander Modules

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.

•Expander Modules

Up to seven Expander modules can be daisy

chained off the Base Converter module to in

crease the number of inputs of the total subsys

tem up to a maximum of 120.

The Base Converter module accepts any mix of

the two Expander module types.

A common user scaling factor applies to all in

puts on each Expander module, however each

Expander module may be individually scaled as required.

•Current Input Expander module - catalog number

IC697ALG440

The Current Expander module has 16 current

inputs each accepting up to Ç 20 mA.

•Voltage Input Expander module - catalog number

IC697ALG441

The Voltage Expander module has 16 differen

tial voltage inputs each accepting up to Ç 10V signals.