Allen Bradley 1771-IR/D PLC RTD (Resistance Temperature Detector) Input Module

FAQ

Q1. What is the 1771-IR/D used for?
It is used to read temperature signals from RTD sensors and convert them into digital values for PLC-5 systems.

Q2. How many input channels does it have?
It provides 6 RTD input channels.

Q3. What sensors are compatible with this module?
It supports RTD sensors such as Pt100 and Ni-based RTDs depending on configuration.

Q4. What is the difference between 1771-IR and 1771-IR/D?
The /D revision indicates an updated hardware version with improved stability and calibration refinements while maintaining functional compatibility.

Q5. What is the temperature measurement range?
It depends on the RTD type, with Pt100 typically covering -200°C to +850°C.

Q6. What is the conversion time per channel?
Approximately 80–120 milliseconds per channel.

Q7. What are the physical dimensions?
Approximately 152 mm × 102 mm × 279 mm.

Q8. What is the weight of the module?
Approximately 1.0 kg (about 2.2 lbs).

1771-IR/D Allen Bradley

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