Introduction

The Allen Bradley 1746-IO8 Combination I/O Module delivers flexible digital input and output monitoring in a single compact module. Its compact and lightweight design allows easy integration into panels or DIN rails, while its industrial-grade construction ensures consistent performance. Fully compatible with Allen-Bradley SLC 500 PLCs, it provides reliable I/O control for machinery, process automation, and manufacturing applications.

Technical Specifications

Parameter	Specification
Module Type	Combination I/O Module
Dimensions (L×W×H)	144.5 × 34.6 × 130.18 mm
Weight	0.2 kg / 0.44 lb
Input Voltage	Standard for SLC 500 digital inputs
Input Type	Digital Signals
Output Type	Digital Signals
Input Channels	4 input points
Output Channels	4 output 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-IO8 Combination I/O Module is designed for versatile digital input and output monitoring in industrial automation environments. It is ideal for manufacturing machinery, process control, and factory automation applications, allowing operators to simultaneously monitor inputs and control outputs with a single compact module. Fully compatible with SLC 500 PLCs, it streamlines automation setups and reduces the need for multiple modules.

Advantages

Integrated I/O Functionality: Combines both digital inputs and outputs in one compact module.
Compact & Lightweight: 144.5 × 34.6 × 130.18 mm and 0.2 kg / 0.44 lb for flexible panel or DIN rail installation.
Industrial-Grade Reliability: Maintains consistent operation in demanding environments.
SLC 500 PLC Compatibility: Seamless integration with Allen-Bradley SLC 500 systems.
Quick Installation: Supports both panel and DIN rail mounting for fast deployment.

Technical FAQs

How many input and output channels does the module provide?
4 digital input channels and 4 digital output channels.
What type of signals does it support?
Standard SLC 500 digital input and output signals.
Can it detect rapid input signal changes?
Yes, optimized for fast digital signal detection.
Is it suitable for continuous industrial operation?
Yes, reliable operation from 0–60 °C.
Does it provide diagnostic feedback?
Yes, both input and output status are available through the SLC 500 PLC.
Can all channels operate simultaneously?
Yes, all inputs and outputs function independently.
Is panel or DIN rail mounting supported?
Yes, the compact design allows flexible installation.
Does it require additional software or firmware?
No, fully managed via the SLC 500 controller.
What is the expected lifespan of the module?
Over 10 years of industrial-grade performance.
Is it suitable for time-critical automation tasks?
Yes, provides fast, reliable digital input/output monitoring for responsive control.