Allen Bradley 1746-OA8/A SLC 500 AC Digital Input Module

Applications

• Monitoring AC digital signals in industrial control systems.

• Integration with SLC 500 PLCs for modular input expansion.

• Detection of discrete process states such as switches, relays, or proximity sensors.

• Real-time status monitoring for safety and automation systems.

• Use in manufacturing plants requiring reliable AC signal detection.

Key Advantages

• Supports 8 AC digital input channels for versatile applications.

• Provides fast and accurate signal detection to ensure timely PLC response.

• Fully compatible with SLC 500 PLC architecture for seamless integration.

• Compact and durable design allows installation in dense control cabinets.

• Reduces downtime with reliable industrial-grade components.

Technical FAQs

Q1: What type of signals does the 1746-OA8/A accept?
It accepts AC digital input signals within the rated voltage range.

Q2: How many input channels are available?
The module provides 8 independent AC digital input channels.

Q3: Are the channels electrically isolated?
Yes, each input channel is isolated to prevent interference and cross-talk.

Q4: Can this module detect both high and low AC signals?
Yes, it reliably detects both logical high and low AC states.

Q5: What is the response time of the inputs?
Typical response time is less than 1 millisecond per channel.

Q6: Is the module suitable for safety-critical applications?
No, it is not certified for safety instrumented systems; external safety measures are recommended.

Q7: What is the operating temperature range?
The module operates reliably from -20°C to 70°C.

Q8: Can the module be hot-swapped?
No, power must be removed before installation or removal.

Q9: Which PLC chassis are compatible with this module?
It is compatible with Allen Bradley SLC 500 series and 1746 chassis models.

Q10: How is calibration or configuration performed?
Configuration is performed via RSLogix 500 software, with no manual calibration required.