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

2026-04-27T22:50:27-07:00

Type: Analog I/O Module
Price: 66.00

Product Overview

The Allen Bradley 1746-FIO4I serves as a high-speed analog combination module designed specifically for the SLC 500 platform. This single-slot module integrates two multi-range inputs and two current outputs into one compact unit, maximizing rack space efficiency. It handles both voltage (0-10 VDC) and current (0-20 mA) signals, providing the versatility required for PID control loops, flow monitoring, and valve positioning. We supply this module as 100% Brand New and Original, ensuring peak performance for your legacy or modular SLC systems.

Technical Specifications

The 1746-FIO4I delivers rapid data conversion and high-resolution signal processing:

Feature | Specification
Manufacturer | Allen Bradley (Rockwell Automation)
Product Line | SLC 500
Module Type | Analog Combination (2-In / 2-Out)
Input Signals | 0-10 VDC; 0-20 mA
Output Signals | Two (2) 0-20 mA
Resolution | 12-bit Input / 14-bit Output
Conversion Method | Successive Approximation
Update Time | 512 microseconds
Backplane Current | 55 mA @ 5V / 150 mA @ 24V
Bandwidth | 7 kHz
Weight | 0.81 lbs (0.37 kg)

Engineering Advantages

The 1746-FIO4I provides technical solutions for demanding process control environments:

High-Speed Data Conversion: The module utilizes a successive approximation method to achieve a 512-microsecond update time. This rapid processing ensures real-time accuracy for high-speed motion or pressure control applications where every millisecond counts.

Superior Signal Integrity: A 1.5 µs track-and-hold time captures transient analog values before conversion. This eliminates data skew and ensures the CPU receives an accurate representation of the field signal, even in environments with fluctuating process variables.

Optimized Rack Density: By combining both input and output functions into a single-slot width, the 1746-FIO4I frees up valuable chassis slots for other communication or digital modules. This reduces the overall hardware footprint of your SLC 500 system.

Robust Noise Immunity: The 7 kHz bandwidth specifically targets and filters industrial electrical noise. This ensures that the 12-bit input and 14-bit output signals remain stable and jitter-free, even when field cables run near high-voltage motor lines.

FAQs

Can I use both voltage and current inputs simultaneously?

Yes. The 1746-FIO4I allows you to configure its two inputs independently. You can monitor a 0-10 VDC signal on one channel while receiving a 0-20 mA signal on the other, providing maximum flexibility for different field sensors.

Is this module compatible with SLC 5/01 and 5/02 processors?

The 1746-FIO4I works with SLC 500 Fixed, Modular, and Remote I/O systems. However, check your specific processor's instruction set to ensure it supports the advanced analog data handling required for this combination module.

What is the condition of this 1746-FIO4I unit?

We offer this product in 100% Brand New original condition. It ships in the authentic Allen Bradley factory box with the original UPC (662468523400) and factory documentation included.

Does this module require an external power supply?

The module draws 150 mA from the 24V DC backplane. Ensure your SLC power supply (such as a 1746-P1 or P2) has sufficient remaining capacity to support this load alongside your other installed modules.