Allen-Bradley 1746-NI16I SLC 500 16-Point Analog Input Module

Availability: 5 left in stock

DescriptionThe Allen-Bradley 1746-NI16I is a high-density analog input module designed for the SLC 500 programmable logic controller (PLC) system. This...

SKU: 1746-NI16I

Manufacturer: Allen-Bradley
Product No.: 1746-NI16I
Product Type: Analog Input Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 250g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The Allen-Bradley 1746-NI16I is a high-density analog input module designed for the SLC 500 programmable logic controller (PLC) system. This module provides 16 single-ended, backplane-isolated input channels with 16-bit resolution, making it suitable for high-precision monitoring of current-based process signals. It is engineered to support a variety of current ranges, including 0 to 20 mA, 4 to 20 mA, and +/- 20 mA, facilitating integration into diverse industrial control environments.

Features

16-channel analog current input module for SLC 500 systems.
16-bit resolution for high-accuracy signal conversion.
Supports multiple input signal types: 0-20 mA, 4-20 mA, +/- 20 mA, and 0-1 mA.
Integrated open-circuit detection for rapid identification of sensor or wiring faults.
Individual channel-to-channel isolation for enhanced noise immunity and signal integrity.
Compact single-slot module design for efficient chassis space utilization.
25-pin D-shell connector interface for reliable field wiring.

Applications

Oilfield water injection automation systems (pressure monitoring).
Wastewater treatment plants (aeration tank DO and pH monitoring).
Power station auxiliary control (transformer and bearing temperature monitoring).
Hydraulic system monitoring for large-scale presses and rolling machines.

Technical Specifications

Model	1746-NI16I
Input Channels	16
Resolution	16-bit
Input Signal Types	0-20 mA, 4-20 mA, +/- 20 mA, 0-1 mA
Backplane Current (5V DC)	125 mA
Backplane Current (24V DC)	75 mA
Thermal Dissipation	2.43 Watts
Input Impedance	249 Ohms
Operating Temperature	-25 to 60 degC (-13 to 140 degF)
Relative Humidity	5% to 95% (non-condensing)
Connector Type	25-pin D-shell

Installation Guidelines

Ensure the PLC chassis is powered down before inserting or removing the module to prevent electrical damage.
The module is designed for standard SLC 500 chassis mounting; ensure it is fully seated and the retaining screws are tightened.
Use shielded twisted-pair cabling for analog signals to minimize EMI/RFI interference.
Maintain proper grounding practices for the analog common terminal to ensure signal stability.
Keep the module clear of high-voltage power lines and high-EMI sources within the control cabinet.
If removing the terminal block, use the provided labeling to ensure correct re-wiring of input channels.

FAQs

What is the 1746-NI16I?

The Allen-Bradley 1746-NI16I is a 16-channel, high-resolution analog current input module designed for the SLC 500 platform.

How do I configure the 1746-NI16I module?

Configuration is performed in RSLogix 500 (offline or online) via the I/O configuration screen. It is a multi-class module, with Class 3 recommended for optimal performance.

What are the 1746-NI16I power requirements?

The module draws 125 mA at 5V DC and 75 mA at 24V DC from the SLC 500 backplane.

How can I detect a sensor disconnection?

The 1746-NI16I features built-in open-circuit detection, which allows the controller to report a fault condition if a sensor loop is broken.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.