Configured for resistance temperature detector signal acquisition in distributed automation nodes, the Allen-Bradley 1734-IR2 (1734-IR2 POINT INPUT MODULE) provides direct physical/electrical execution.

Model Cataloging and Suffix Variants

• Base Model Identifier: 1734-IR2
• Spare Model Reference: 1734IR2
• Series Platform: Point I/O
• Hardware Module Class: RTD Point Input Module

Hardware Specifications

Backplane and Deterministic Network Parameters

The module executes backplane bus communication velocity parameters across compatible Allen-Bradley chassis structures. Firmware flash compatibility ensures seamless integration with contemporary controllers, supporting deterministic EtherNet/IP networks and optimized I/O density scaling across distributed industrial control loops.

Ordering Information

• 2 x 1734-IR2 Point Input Module units
• 4 x Removable terminal block housing components
• 2 x DIN-mounting locking latches

Mechanical and Electrical Deployment Guidelines

• DIN-Rail Mounting: Secure the open-style module firmly onto standard 35 mm DIN rails within a protective control cabinet.
• Cold Junction Compensation: Maintain cabinet ambient temperatures within the 0 to 70 deg C range to ensure accurate thermal compensation.
• Signal Shielding: Terminate RTD sensor shields to designated ground bars to eliminate common-mode noise interference.
• Power Verification: Supply regulated 24 V DC power directly to the terminal base assembly prior to operational activation.

Operational Inquiry and Verification

• What is the total number of analog inputs supported by this module?

  The module supports exactly 2 single-ended RTD input channels.

• What resolution does the analog-to-digital conversion utilize?

  The input resolution is 16 bit signed format.

• What is the specified resistance input range for connected sensors?

  The input range is configured for 0 to 600 Ohm measurements.

• What is the common mode rejection ratio of the input circuitry?

  The common mode rejection ratio is rated at 120 dB.

• What is the normal mode rejection ratio performance metric?

  The normal mode rejection ratio is specified at 100 dB.

• What is the temperature coefficient drift specification?

  The accuracy drift with temperature is 30 ppm/deg C.

• What input impedance is presented to the measurement circuit?

  The input impedance is 100 k Ohm with an input resistance of 1 M Ohm.

• What voltage supply powers the module bus interface?

  The module operates on a standard 24 V DC power supply.