Product Details
Product Description
The Allen Bradley 1746-NI4 is a four-channel analog input module designed for the SLC 500 series. It supports both current and voltage input signals, offering high-resolution conversion with delta–sigma modulation technology. With 16-bit resolution, fast update times, and reliable repeatability, this module is engineered for precise analog signal processing in industrial automation systems.
Technical Specifications
-
Manufacturer: Allen Bradley
-
Category: PLCs
-
Product Line: SLC 500
-
Part Number: 1746-NI4
-
Weight: 1.00 lbs (0.45 kg)
-
Module Type: Analog Input Module
-
Backplane Current (5 V): 35 mA
-
Backplane Current (24 VDC): 85 mA
-
Input Signal Range: -20 to +20 mA or -10 to +10 VDC
-
Bandwidth: 10 Hz
-
Current Input Coding: -16,384 to +16,384
-
Voltage Input Coding: -32,768 to +32,767
-
Resolution: 16 bits
-
Update Time: 512 microseconds
-
Step Response: 60 milliseconds
-
Conversion Type: Delta–Sigma Modulation
-
Converter Resolution: 16-bit
-
Repeatability: ±1 LSB
-
Non-linearity: 0.01%
-
Chassis Location: Any I/O slot except slot 0
-
Cable Lengths Supported: 0.5, 1, 2.5, or 5.0 meters
Application Scenarios
-
Designed for SLC 500 systems requiring precise analog input measurement
-
Suitable for process control, monitoring, and automation environments
-
Ideal for current and voltage signal acquisition with high accuracy
FAQ
Q: How many input channels does the 1746-NI4 provide? A: It supports four analog input channels.
Q: What type of signals can be measured? A: Both current (-20 to +20 mA) and voltage (-10 to +10 VDC) signals.
Q: What is the resolution of the converter? A: The module provides 16-bit resolution with delta–sigma modulation.
Comparison with Similar Models
-
1746-NI4: Four-channel analog input, supports current and voltage signals
-
1746-NI8: Eight-channel analog input, higher density option
-
1746-NO4I: Four-channel analog output, designed for control applications
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Industrial Networking Essentials: Demystifying Hubs, Switches, and Routers in Control Systems
Industrial automation relies heavily on robust networking infrastructure to connect programmable logic controllers (PLCs), distributed control systems (DCS), and human-machine interfaces (HMIs). Modern factory automation environments generate vast amounts of real-time operational data across deterministic networks. Understanding the structural differences between hubs, switches, and routers ensures optimal traffic segmentation, minimizes latency, and maintains high network availability.
Safety Relays in Industrial Automation: Fundamentals, Design Standards, and Fail-Safe Architecture
Safety relays form the bedrock of functional safety in modern factory automation, preventing catastrophic equipment failure and protecting plant personnel. While standard electromechanical relays handle basic load switching, they lack the redundant diagnostics required for high-risk industrial environments. Modern industrial automation platforms—including programmable logic controllers (PLCs) and distributed control systems (DCS)—rely on specialized safety relays to monitor field devices and isolate hazards instantly.
Voice-Activated Industrial Automation: Integrating Speech Control into PLC and DCS Architectures
Industrial automation integrates speech recognition, IIoT protocols, and NLP with PLCs and DCS to streamline operations. By leveraging advanced edge computing, engineers enable real-time, hands-free control—allowing personnel to manage smart factory processes safely away from hazardous equipment.