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- Allen Bradley
- 1746-IN16/C
- PLC Module/Rack
- USA
- 145 × 35 × 130 mm
- 0.5kg
- Xiamen, China
- New & In Stock
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Allen Bradley 1746-IN16/C — Detailed Technical Overview
1. Product Introduction
The Allen Bradley 1746-IN16/C is a digital AC/DC input module designed for use within the SLC 500 PLC platform. The “/C” suffix represents a specific hardware revision, typically associated with incremental improvements in performance, stability, or compliance while maintaining full compatibility with earlier versions.
This module provides sixteen discrete input channels, allowing it to receive signals from a wide range of field devices such as switches, sensors, relays, and contact outputs. It supports both AC and DC input signals, making it suitable for installations where mixed signal types are present.
Each channel includes a status LED for real-time indication, helping operators quickly identify signal states and diagnose issues. The module installs into the PLC chassis and communicates via the backplane, ensuring consistent and reliable signal processing.
2. Product Parameters
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 1746-IN16/C |
| Series | SLC 500 |
| Module Type | Digital AC/DC Input Module |
| Number of Inputs | 16 |
| Input Type | Sinking (AC/DC compatible) |
| Nominal Voltage | 24 V AC/DC |
| Input Voltage Range | 10–30 V AC/DC |
| Nominal Input Current | Approx. 8 mA @ 24V |
| Off-State Current | ≤ 1 mA |
| Off-State Voltage | ≤ 3 V |
| Signal Delay (DC) | Approx. 15 ms |
| Signal Delay (AC) | Approx. 25 ms |
| Backplane Current | Approx. 0.085 A @ 5V DC |
| Power Dissipation | Approx. 6 W |
| Isolation | Optical isolation (field to logic) |
| Status Indicators | 16 LEDs (per channel) |
| Operating Temperature | 0 to 60°C |
| Installation Type | Rack-mounted |
| Dimensions (mm) | 145 × 35 × 130 |
| Weight (kg) | 0.3 – 0.5 kg |
3. Product Applications
The 1746-IN16/C is widely used in industrial automation systems where reliable discrete signal monitoring is required.
Typical applications include:
- Monitoring push buttons and selector switches
- Detecting limit switches and safety interlocks
- Interfacing with proximity and photoelectric sensors
- Reading relay outputs and dry contacts
- Conveyor systems and packaging equipment
- General-purpose machine automation systems
Its compatibility with both AC and DC signals makes it suitable for systems with diverse field wiring requirements.
4. Product Advantages
AC/DC Signal Compatibility
Supports both AC and DC input signals, offering flexibility in system design and wiring.
High Channel Density
Sixteen inputs in a single module reduce the number of required modules and save rack space.
Improved Hardware Revision (/C)
Enhanced stability and reliability compared to earlier revisions while maintaining backward compatibility.
Clear Diagnostic Indicators
Individual LEDs provide immediate feedback on input status, simplifying troubleshooting.
Reliable Signal Processing
Ensures consistent detection of field signals even in electrically noisy environments.
Easy Integration
Seamlessly integrates into SLC 500 systems without complex configuration.
5. Brand Information
Allen Bradley is widely recognized in industrial automation for manufacturing PLC systems, I/O modules, and control equipment.
Its products are commonly used in manufacturing, energy, and process industries due to their reliability and long-term operational stability.
6. Product Series
- Series Name: SLC 500
- Category: Digital Input Module
The SLC 500 series is a modular PLC platform designed for flexible system expansion. It supports a wide variety of digital, analog, and specialty modules, making it suitable for diverse industrial automation applications.
7. Recommended Models (Same Series / Related)
Related Models Table
| Model | Function | Inputs | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746-IB16 | Digital Input | 16 | 24V DC (Source) | 145 × 35 × 130 | 0.3 kg |
| 1746-IA16 | Digital Input | 16 | 120V AC | 145 × 35 × 130 | 0.3 kg |
| 1746-IM16 | Digital Input | 16 | 240V AC | 145 × 35 × 130 | 0.35 kg |
| 1746-ITB16 | Digital Input | 16 | 24V DC Sink/Source | 145 × 35 × 130 | 0.25 kg |
| 1746-OB16 | Digital Output | 16 | 24V DC | 145 × 35 × 130 | 0.3 kg |
8. Recommended Popular Models (Same Brand)
Popular Models Table
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|---|---|---|---|---|---|
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