Allen Bradley 1734-IR2E POINT I/O 2-Channel RTD Input Module

Product Overview

The Allen Bradley 1734-IR2E operates as a high-precision analog input expansion for the POINT I/O platform. It specializes in converting resistance signals from RTD (Resistance Temperature Detector) sensors into digital data for the controller. This module provides two independent channels for critical temperature monitoring in distributed I/O architectures. We supply this unit as 100% Brand New and Original, ensuring high-accuracy thermal feedback for your process control loops.

Technical Specifications

The 1734-IR2E utilizes high-resolution conversion technology to maintain signal integrity:

Engineering Advantages

The 1734-IR2E solves specific thermal measurement challenges in high-density control cabinets:

• Superior Signal Precision: The 16-bit resolution detects minute resistance changes, allowing the PLC to monitor temperature fluctuations with laboratory-grade accuracy. This precision prevents overshoot in sensitive heating or cooling applications.

• Effective Noise Rejection: Digital filtering and 50V continuous isolation protect the low-voltage RTD signals from electromagnetic interference (EMI) generated by nearby variable frequency drives (VFDs) and motor starters.

• Simplified Mechanical Configuration: The hardware utilizes a physical keyswitch at position 6. This mechanical lock prevents the insertion of incorrect module types into the terminal base, shielding the system from accidental voltage damage during maintenance.

• Thermal Efficiency: The module dissipates only 1.0 Watt of power. This low thermal footprint prevents heat buildup in compact distributed I/O enclosures, extending the lifespan of adjacent electronic components.

FAQs

• Which RTD sensor types does the 1734-IR2E support?

  This module supports standard 100-ohm Platinum (Pt) RTDs and various other resistance-based sensors. You must configure the specific sensor type (e.g., Pt 385 or Pt 3916) within the Studio 5000 or RSLogix 5000 software environment to ensure correct scaling.

• Does this module require a specific terminal base?

  The 1734-IR2E installs into 1734-TB, 1734-TBS, or 1734-TOP terminal bases. Ensure the base is properly grounded to the DIN rail to maximize the noise rejection capabilities of the 16-bit converter.

• How does the "Signed Integer" data format work for temperature?

  The module converts the analog resistance into a signed integer value. The PLC then scales this integer into engineering units (Celsius or Fahrenheit) based on the configuration profiles, providing direct temperature readouts to the HMI.

• What happens if an RTD wire breaks during operation?

  The 1734-IR2E features integrated open-circuit detection. When a wire breaks or a sensor fails, the module flags a diagnostic error to the PLC, allowing the system to trigger a safe-state shutdown or alarm immediately.