Allen-Bradley 1734-IE8C POINT I/O 8-Channel Analog Current Input Module

Product Overview

The Allen-Bradley 1734-IE8C functions as a high-density analog current input module within the POINT I/O distributed hardware platform. This compact module digitizes raw 4–20 mA or 0–20 mA current loops from field transmitters, including pressure sensors, flow meters, and temperature transducers, converting them into precise signed integer data values for the host controller. We distribute this critical network slice exclusively in 100% brand new, original factory-sealed condition to ensure exact out-of-the-box calibration, prevent channel-to-channel crosstalk, and maintain uninterrupted signal tracking across your remote I/O nodes.

Technical Specifications

Engineering Advantages

• Maximizes Channel Density in Cramped Enclosures: This module packs eight independent analog input channels into an ultra-slim, 0.25 lbs physical footprint. This high-density arrangement allows control engineers to expand analog instrumentation counts inside small remote terminal boxes and machine-mount junction panels without upgrading enclosure sizes.

• Filters Out Severe Plant-Floor Noise: The onboard Sigma-Delta conversion engine oversamples the incoming current waves, filtering out high-frequency electrical harmonics and common-mode noise generated by nearby variable frequency drives (VFDs). This processing delivers an absolute accuracy of 0.1% full scale directly to your master control registers.

• Lowers Panel Power and Cooling Burden: The optimized circuit design draws a minimal 75 mA from the 5V DC POINTBus backplane while limiting internal power dissipation to 0.6 Watts at 28.8V DC. This low thermal output prevents localized heat pockets within tightly packed DIN-rail assemblies, extending the operating life of adjacent communications adapters.

• Guarantees Mistake-Proof Field Maintenance: The module chassis keys directly into Position 3 on standard 1734-TB terminal bases. This mechanical interlock blocks installers from accidentally sliding a digital or high-voltage module into an analog slot during rapid field maintenance, preventing component over-voltage destruction.

FAQs

• Does this module supply loop power directly to 2-wire field transmitters?

  No. The 1734-IE8C measures incoming current signals but does not distribute 24V DC loop power to active field devices. You must route your 2-wire transmitters through an external bulk power source or utilize a 1734-FPD Field Power Distributor module to energize the current loops before tying them into the module terminals.

• Is this analog input card an authentic factory-new component or a cleaned surplus unit?

  We guarantee this product is 100% brand new, factory-original, and completely unused automation stock. It ships inside its authentic manufacturer packaging with unmarred backplane blade links, intact factory serialization labels, and untouched calibration parameters.

• Can I scale the 4-20mA signal into engineering units directly on this module?

  The 1734-IE8C transmits data to the processor exclusively in signed integer format. You handle final engineering unit scaling—such as converting raw counts to PSI, GPM, or degrees—within your Logix5000 controller software program using the scaling (SCL) instruction or simple mathematical rungs.