GE Temperature Sensing Modules
Mar. 30, 2023
The VersaMax Analog Input RTD Module (IC200ALG620) is an intelligent module that accepts input signals from up to 4 RTD input devices and provides input data with 16 bits of resolution.No external power supply is required for this module. The excitation current for the RTDs is provided by the module, which automatically matches the excitation current to each configured RTD type.The RTD Analog Input Module accepts inputs from 4 independent 3-wire and/or 4-wire platinum, nickel, nickel/iron, or copper RTDs.
Module features include:
1. Selectable resistance measurements in tenths of Ω, tenths of ° Fahrenheit,
or tenths of °Celsius
2. Individual channel configuration
3. Selectable resistance ranges: 0 – 500 Ω and 0 – 3000 Ω
4. Selectable RTD input as resistance or temperature (Celsius or Fahrenheit)
5. Reports high/low, underrange/overrange, open wire and input short alarms.
6. Two data acquisition rates based on 50 Hz and 60 Hz line frequencies
7. Configurable channel activation
LED Indicators
The OK LED indicates module status:
§ 1.On green indicates normal operation
§ 2.Flashing green indicates boot mode or update
§ 3.Flashing amber indicates self-diagnostic error
§ 4.Off indicates no 3.3V backplane power
Diagnostics
The module reports over/under range, open wire, non-volatile memory storage,high/low alarm, and input short diagnostics to the I/O Fault Table.
Calibration
The module automatically performs A/D calibration at powerup. Automatic calibration is then repeated periodically to compensate for changes in the ambient temperature.
Host Interface
The RTD Input module provides 4 words of analog input data.
1. Selectable resistance measurements in tenths of Ω, tenths of ° Fahrenheit,
or tenths of °Celsius
2. Individual channel configuration
3. Selectable resistance ranges: 0 – 500 Ω and 0 – 3000 Ω
4. Selectable RTD input as resistance or temperature (Celsius or Fahrenheit)
5. Reports high/low, underrange/overrange, open wire and input short alarms.
6. Two data acquisition rates based on 50 Hz and 60 Hz line frequencies
7. Configurable channel activation
LED Indicators
The OK LED indicates module status:
§ 1.On green indicates normal operation
§ 2.Flashing green indicates boot mode or update
§ 3.Flashing amber indicates self-diagnostic error
§ 4.Off indicates no 3.3V backplane power
Diagnostics
The module reports over/under range, open wire, non-volatile memory storage,high/low alarm, and input short diagnostics to the I/O Fault Table.
Calibration
The module automatically performs A/D calibration at powerup. Automatic calibration is then repeated periodically to compensate for changes in the ambient temperature.
Host Interface
The RTD Input module provides 4 words of analog input data.
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