Allen-Bradley 1734-IE8C Analog Input Module | 16-Bit Precision
Meta Description
Shop the Allen-Bradley 1734-IE8C POINT I/O analog input module with eight current inputs, 16‑bit resolution, and delta‑sigma conversion. Ideal for distributed I/O.
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Product Summary
The Allen‑Bradley 1734‑IE8C delivers eight single‑ended current input channels with 16‑bit resolution across a 0‑21 mA range. This module achieves 0.1% full‑scale accuracy at 25°C and uses delta‑sigma conversion for reliable signal processing. It supports 0‑20 mA and 4‑20 mA signals, includes channel‑level diagnostics, and requires an external POINT I/O communication adapter. Factory‑calibrated design eliminates manual calibration needs.
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Product Procurement & Buyer Guide
Procurement teams seeking scalable analog input solutions for distributed I/O systems find the 1734‑IE8C highly effective. This module accepts eight current signals simultaneously and stores data as signed integers. Channel‑level diagnostics reduce downtime by instantly flagging sensor faults. Engineers appreciate individually configurable channels with selectable input filters. The module integrates with Rockwell Automation’s POINT I/O family, which simplifies system expansion. Compatible terminal bases include the 1734‑TB3 two‑piece or 1734‑TOP one‑piece assemblies. Power dissipation stays low at 0.6 W at 28.8V DC, making it suitable for space‑constrained panels.
For cost‑conscious projects, the 1734‑IE8C offers high channel density without sacrificing accuracy. Absolute accuracy of 0.1% full scale ensures consistent measurement in process control applications. Over‑ and under‑range detection features protect downstream equipment from erroneous signals. Use signal wires rated at 100°C (22–14 AWG) for reliable connections.
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Expert Technical Evaluation & Performance Review
This module employs a delta‑sigma conversion type with 16‑bit resolution over 0‑21 mA, resulting in a granularity of 0.32 µA/count. The input impedance is 60 ohms, which minimizes loading on current loops. All eight channels convert data simultaneously, preserving time‑critical process variables. The data format uses signed integers, enabling straightforward scaling within a PLC.
Engineers value the built‑in channel‑level diagnostics that monitor each input for integrity. The module’s thermal dissipation measures 2.0 BTU/hr, which fits within standard enclosure cooling budgets. Its compact dimensions—56.0 x 12.0 x 75.5 mm—save panel space while supporting dense I/O layouts. No field calibration is required, but proper configuration of the 24‑byte data table is necessary.
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Logistics & Standard Packaging Details
Express delivery is available via FedEx, UPS, and DHL for rapid deployment.
