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1746-FIO4I

Allen-Bradley 1746-FIO4I SLC 500 Fast Analog I/O Module

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  • Manufacturer: Allen-Bradley

  • Product No.: 1746-FIO4I

  • Product Type: Analog Input Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 200g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The Allen-Bradley 1746-FIO4I is a fast analog combination I/O module for the SLC 500 family. It packs 2 differential input channels and 2 current output channels into a single-slot module, combining analog input and output functions where expansion space is limited. The module weighs approximately 0.2 kg (0.44 lb).

Technical Specifications

Manufacturer Rockwell Automation / Allen-Bradley
Catalog Number 1746-FIO4I
Series SLC 500
Module Type Fast Response Analog Combination Module
Inputs 2 differential (voltage / current)
Input Signals 0–10 VDC; 0–20 mA
Input Resolution 12-bit
Outputs 2 x 0–20 mA
Output Resolution 14-bit
Conversion Method Successive approximation (in); R-2R ladder (out)
Conversion Time 7.5 µs every 512 µs
Bandwidth 7 kHz
Step Response 100 ms in / 2.5 ms out
Backplane Current (5V) 55 mA
Backplane Current (24V) 150 mA
Backplane Isolation 500 VDC
Module Width Single slot
Weight 0.2 kg (0.44 lb) approx.
Compatible Hardware SLC 500 fixed and modular style
Recommended Cable Shielded Belden #8761, 2.5 mm² (14 AWG) max

Accuracy Ratings

Analog input accuracy: ±0.440% of full scale at 25°C, ±0.750% at 60°C. Analog output accuracy: ±0.298% of full scale at 25°C, ±0.541% across 0–60°C. Maximum absolute input: ±7.5V DC or 7.5V AC RMS, 0–30 mA.

Engineering Advantages

Combining 2 inputs and 2 outputs in a single slot saves rack space in space-limited installations. Fast 7.5 µs conversion captures rapidly changing variables. The 7 kHz bandwidth handles dynamic signals beyond standard analog modules. At roughly 0.2 kg, the module adds minimal weight to the chassis. Screw-terminal connections accept up to 14 AWG shielded cable for noise immunity.

Technical FAQs

Q1: How many channels does the 1746-FIO4I provide?
A1: 2 differential analog inputs (0–10VDC / 0–20mA) and 2 current outputs (0–20mA).

Q2: What is the resolution and conversion speed?
A2: 12-bit input and 14-bit output resolution, converting in 7.5 µs every 512 µs.

Q3: What cable is recommended for wiring?
A3: Shielded Belden #8761 with wire size up to 2.5 mm² (14 AWG).

Product Resources

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🏷️ Tags: Analog Input Module

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