Product Details
Overview
The Allen-Bradley 1746-NI16I is a 16-channel SLC 500 analog input module designed for precise signal acquisition in control systems. It supports multiple current input ranges, high-resolution sigma-delta conversion, and features robust isolation for reliable operation in industrial environments.
Technical Specifications
-
Manufacturer: Allen-Bradley (Rockwell Automation)
-
Model / Part Number: 1746-NI16I
-
Product Type: Analog Input Module
-
Product Line: SLC 500
-
Number of Inputs: 16 channels
-
Input Signal Types: 0–20 mA, 4–20 mA, ±20 mA, 0–1 mA
-
Bandwidth: 6–250 Hz
-
Step Response: 9–630 ms
-
Input Filtering: Low-pass digital filter with programmable frequencies (6, 10, 20, 40, 60, 80, 100, 250 Hz)
-
Conversion Type: Sigma-Delta
-
Backplane Current: 125 mA @ 5 VDC; 75 mA @ 24 VDC
-
Isolation: 500 V AC for 1 second (channel-to-backplane)
-
LED Indicators: 5 green LEDs (one per group of four channels) plus module status indicator
-
Chassis Location: Any I/O slot except slot 0
-
Thermal Dissipation: 2.43 W
-
Recommended Cabling: Belden #8761 or equivalent
Key Features
-
Supports multiple analog current ranges for flexible system integration
-
16 individually monitored channels with group status indicators
-
Sigma-Delta A/D conversion for precise analog-to-digital performance
-
Digital low-pass filtering reduces signal noise
-
High isolation voltage ensures system reliability
Applications
-
Process monitoring and measurement in SLC 500 systems
-
Integration with 120V AC I/O and other analog devices
-
Industrial automation requiring high-accuracy analog signal inputs
FAQs
Q1: What input signal ranges does 1746-NI16I support?
It supports 0–20 mA, 4–20 mA, ±20 mA, and 0–1 mA signals.
Q2: How is channel status indicated?
Each group of four channels has a green LED, with an additional LED for module status.
Q3: What isolation does the module provide?
The module provides 500 V AC isolation for 1 second, protecting the backplane and input signals.
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
Strategic Selection: Choosing the Right SCADA Software for Your PLC Project
In industrial automation, the SCADA (Supervisory Control and Data Acquisition) system acts as the bridge between raw machine data and actionable human intelligence. Selecting the incorrect software platform can lead to integration bottlenecks, scalability issues, and excessive long-term maintenance costs. As an automation consultant with 15 years of experience, I have guided many projects through the selection process. Below are the essential criteria for choosing a platform that ensures both performance and longevity.
Ensuring Operational Continuity: The Strategic Value of Redundant Automation Systems
In modern industrial landscapes, unplanned downtime is the ultimate adversary. For sectors relying on complex PLC and DCS architectures, a single hardware failure can trigger catastrophic production losses. Therefore, implementing redundant automation systems is no longer a luxury; it is a fundamental requirement for mission-critical operations. In this article, I analyze why redundancy remains the backbone of reliable industrial infrastructure.
Selecting the Right Cables for Industrial Automation: A Comprehensive Guide
Selecting the appropriate cabling infrastructure is critical for the success of any industrial automation project. Improper cable selection often leads to signal degradation, system instability, and costly downtime. As an automation engineer, I frequently see projects compromised by poor cabling choices in harsh industrial environments. This guide simplifies the complex landscape of cabling to help you make informed decisions for your PLC, DCS, and control systems.