The following table lists some of the differences between the UIO and the existing Series C AI, AO,
DI, and DO modules.
UIO module Series C AI, AO, DI, and DO modules
Supports temperature range between -40
degree Celsius to +70 degree Celsius
Supports temperature range between 0 degree
Celsius to +50 degree Celsius
Supports multiple channel type configuration Supports unique channel type configuration
2.5 What is Low Level Analog Input (LLAI) Module
Starting with R430, a new Series C compliant Low Level Analog Input (LLAI) Module is introduced
and designed to operate with the low voltage devices such as Thermocouples and RTDs. The AILLAI module supports 16 channels and accepts temperature inputs in the range of millivolts (mV).
This AI-LLAI module is identical to the existing Series C AI-LLMUX module except that the number
of channels supported by the AI-LLAI module is reduced to 16 channels. Unlike the AI-LLMUX
module, the field inputs can be directly connected to the AI-LLAI IOTA since it has its own IOTA. In
addition, the AI-LLAI module supports a new RTD input type, that is, CU50Rtd. A new library is
introduced in the standard library as "AI-LLAI."
2.5.1 Features of AI-LLAI
The following are some of the key features of AI-LLAI.
l Supports up to 16 RTDs or Thermocouple inputs.
l Operates in an extended temperature range (-40 degree Celsius to +70 degree Celsius).
l Supports a new RTD input type, CU50Rtd.
l Supports configurable Open Thermocouple Detection (OTD).
l Supports 1 second PV scanning with OTD protection.
l Supports N type thermocouple.
NOTE
AI-LLAI module does not support the following features.
l Remote cold junction capability
l User defined table
