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Allen-Bradley
Allen-Bradley 1756-IA16 Digital Input Module 16 Point 120VAC
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Allen-Bradley 1756-IA16 Digital Input Module
16-point AC digital input module for ControlLogix control systems, 120VAC field signal acquisition, equipment maintenance, system expansion and replacement procurement.
Technical Specifications
| Brand | Allen-Bradley |
| Model Number | 1756-IA16 |
| Product Category | Digital Input Module |
| Product Family | ControlLogix I/O |
| Input Type | AC Digital Input |
| Number of Inputs | 16 Points |
| Nominal Input Voltage | 120 VAC |
| Input Voltage Range | 74-132 VAC |
| Terminal Configuration | 20 Pin |
| Input Groups | 2 Groups |
Product Overview
Allen-Bradley 1756-IA16 is a ControlLogix digital input module designed to receive AC field signals in compatible chassis-based industrial automation systems. The module provides 16 digital input points and is intended for 120VAC-class input applications.
Rockwell Automation technical documentation identifies the 1756-IA16 as a 74-132VAC 16-point AC input module. The product page describes it as a 120VAC digital input module with 16 points and a 20-pin connection arrangement.
For maintenance, system expansion and replacement procurement, engineers and purchasing teams should compare the complete 1756-IA16 catalog number, field input voltage, point count, terminal arrangement, chassis architecture, controller configuration and wiring requirements with the existing control system documentation before ordering.
Key Features
16 Digital Inputs
Provides 16 AC digital input points for receiving compatible discrete field signals in a ControlLogix system.
120VAC Input
Designed around 120VAC-class field input applications with a documented 74-132VAC input range.
ControlLogix I/O
The 1756-IA16 belongs to the Bulletin 1756 chassis-based ControlLogix I/O family.
20-Pin Connection
Rockwell product information identifies a 20-pin connection arrangement for the module.
Grouped Inputs
Published wiring documentation shows the input points arranged in two groups for field wiring.
Catalog Number Identification
The complete 1756-IA16 catalog number provides a clear reference for engineering documentation, maintenance records and purchasing inquiries.
Applications
- Industrial automation control systems
- 120VAC discrete signal input
- Machine status monitoring
- Limit switch and field device input
- Industrial process control
- Control panel modernization
- Control system maintenance
- PLC I/O expansion projects
Product Advantages
Clear Input Configuration
The 16-point AC input format provides a straightforward reference for system design, maintenance and purchasing verification.
Defined Voltage Range
The documented 74-132VAC input range helps engineers compare field signal requirements with existing system specifications.
Model Verification
The complete 1756-IA16 catalog number can be checked against BOM records, installed module labels and control drawings before purchasing.
Procurement Reference
Structured product information supports engineers, maintenance teams, system integrators and industrial buyers during sourcing and quotation preparation.
Purchase Information
Allen-Bradley 1756-IA16 Digital Input Module can be considered for ControlLogix system maintenance, I/O expansion, replacement planning and industrial procurement inquiries. Before ordering, confirm the complete 1756-IA16 catalog number, 120VAC-class input requirement, 16-point configuration, terminal arrangement, chassis architecture and field wiring against the existing automation system documentation.
Related Bulletin 1756 input modules can have different voltage ranges, point counts, isolation arrangements and terminal configurations. Always use the complete 1756-IA16 catalog number when preparing a quotation request or purchasing requirement.
Frequently Asked Questions
What is Allen-Bradley 1756-IA16?
Allen-Bradley 1756-IA16 is a ControlLogix AC digital input module with 16 input points.
What input voltage does 1756-IA16 use?
Rockwell identifies it as a 120VAC module, while current technical documentation specifies a 74-132VAC input range.
How many inputs does 1756-IA16 have?
The module provides 16 digital AC input points.
Is 1756-IA16 an analog input module?
No. It is a discrete digital AC input module.
What product family does 1756-IA16 belong to?
It belongs to the Bulletin 1756 ControlLogix chassis-based I/O family.
What terminal arrangement is associated with 1756-IA16?
Rockwell product information describes the module as a 20-pin configuration.
Is 1756-IA16 the same as 1756-IA16I?
No. Rockwell lists them as separate catalog numbers. The 1756-IA16 is a 74-132VAC 16-point input module, while the 1756-IA16I is listed as a 79-132VAC 16-point isolated input module.
Can 1756-IA16 be considered for replacement projects?
It can be considered after the complete catalog number, voltage range, point count, isolation requirements, chassis configuration and field wiring have been compared with the existing installation.
What should be checked before ordering 1756-IA16?
Check the complete catalog number, required AC input voltage, number of points, terminal arrangement, ControlLogix chassis configuration, controller requirements and existing field wiring documentation before purchasing.
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