Rockwell Automation 2085 Micro800 Discrete and Analog Expansion I/O Modules - Manual (Page 20)

12 Rockwell Automation Publication 2080-UM003A-EN-E - March 2013
Chapter 2 Discrete and Analog Expansion I/O Features
Data format
You can configure the following data formats for channels 0…3 through the
Connected Components Workbench software.
• Engineering Units x 1 – If you select engineering units x 1 as the data
format for a Thermocouple and RTD input, the module scales input data
to the actual temperature values for the selected Thermocouple/RTD type
per Thermocouple/RTD standard. It expresses temperatures in 0.1 °C/° F
units. For resistance inputs, the module expresses resistance in 0.1 ohm per
count. For mV inputs, the module expresses it in 0.01 mV per count.
• Engineering Units x 10 – For a Thermocouple or RTD input, the module
scales input data to the actual temperature values for the selected
Thermocouple/RTD type per Thermocouple/RTD standard. With this
format, the module expresses temperatures in 1 °C/° F units. For resistance
inputs, the module expresses resistance in 1 ohm per count. For mV inputs,
the module expresses it in 0.1 mV per count.
• Raw/Proportional Data Format – The value presented to the controller is
proportional to the selected input and scaled into the maximum data range
allowed by the bit resolution of the A/D converter. For example, the full
data value range for a thermocouple type B 300...1800 °C is mapped to
-32768...32767. See
Convert Analog Value to Data Format Value on
page 13 for the conversion method.
• Percent Range – The input data is presented as a percentage of the normal
operating range. For example, 0…100 mV equals 0…100% or 300..1800 °C
equals 0...100% for thermocouple type B sensor. See
Convert Analog Value
to Data Format Value on page 13 for the conversion method.
Valid Range of the Data Formats for 2085-IRT4
The following table shows the valid range of the Data Format versus the Data
Type/Range for channels 0…3.
100 Ω Nickel 618 -60…250 °C (-76…482 °F)
200 Ω Nickel 618 -60…200 °C (-76…392 °F)
120
Ω Nickel 672
-80…260 °C (-112…500 °F)
10
Ω Copper 427
-200…260 °C (-328…500 °F)
Ohms 0…500 Ohms
Supported RTD Types and Ohms Range
Sensor Range Range