Introduction

The Allen Bradley 1746-IM8 AC Digital Input Module delivers reliable AC digital signal monitoring for industrial automation and control applications. Its compact and lightweight form factor allows easy installation in panels or on DIN rails, while its industrial-grade design ensures consistent performance. Fully compatible with SLC 500 PLC systems, it provides accurate input detection for machinery, process automation, and manufacturing environments.

Technical Specifications

Parameter	Specification
Module Type	AC Digital Input Module
Dimensions (L×W×H)	144.5 × 34.6 × 130.18 mm
Weight	0.181 kg / 0.40 lb
Input Voltage	AC standard for SLC 500 inputs
Input Type	AC Digital Signals
Channels	16 input points
Operating Temperature	0°C to 60 °C
Storage Temperature	-20°C to 70 °C
Mounting	Panel / DIN Rail
Compatibility	Allen-Bradley SLC 500 PLCs

Applications

The Allen Bradley 1746-IM8 AC Digital Input Module is designed for high-precision monitoring of AC signals in industrial automation environments. It is ideal for factory automation, process control, and machinery operation where reliable digital input detection is required. Fully compatible with Allen-Bradley SLC 500 PLCs, it enables accurate state detection from switches, sensors, and other field devices.

Advantages

Reliable Digital Input Monitoring: Supports fast and precise AC signal detection.
Compact & Lightweight: 144.5 × 34.6 × 130.18 mm and 0.181 kg / 0.40 lb for easy installation in panels or racks.
Durable Industrial Design: Built to operate consistently in challenging industrial environments.
Seamless SLC 500 Integration: Optimized for Allen-Bradley SLC 500 PLC systems.
Simplified Installation: Supports DIN rail or panel mounting for quick setup.

Technical FAQs

What voltage range does the module support?
AC input voltage compliant with standard SLC 500 specifications.
How many digital input points are available?
Provides 16 AC digital input channels.
Can it detect rapid changes in input signals?
Yes, optimized for fast digital signal detection.
Is it suitable for continuous operation in industrial environments?
Yes, designed for reliable operation from 0–60 °C.
Does it provide diagnostic or status feedback?
Yes, module and channel status can be monitored through the SLC 500 PLC.
Can multiple inputs be monitored simultaneously?
Yes, all 16 channels operate independently and simultaneously.
Is it compatible with panel or DIN rail mounting?
Yes, compact design allows flexible installation options.
Does it require additional software or firmware?
No extra software required; fully managed via SLC 500 PLC.
What is the expected operational lifespan?
Over 10 years of reliable industrial use.
Is it suitable for time-critical automation tasks?
Yes, provides fast and accurate digital input detection for responsive control.