Description

The Allen-Bradley 1746-NI8 is an 8-point analog input module designed for the SLC 500 programmable logic controller (PLC) system. This module provides high-speed signal conversion for industrial control applications, allowing the SLC 500 processor to monitor and process analog signals from field devices such as transmitters, sensors, and transducers.

Features

• 8-point analog input capacity for multi-channel monitoring.
• Supports standard industrial signal ranges including 20 mA and 10 VDC.
• Fast signal conversion capabilities for real-time process control.
• Compatible with the Allen-Bradley SLC 500 chassis-based I/O system.
• Designed for high-reliability performance in demanding industrial environments.

Applications

This module is widely used in process automation, manufacturing, and monitoring systems where precise analog data acquisition is required. It is suitable for applications involving temperature, pressure, flow, and level monitoring within the SLC 500 architecture.

Technical Specifications

Installation Guidelines

• Ensure the SLC 500 chassis power is disconnected before installing or removing the module.
• Slide the module into the desired slot in the SLC 500 chassis, ensuring it is properly seated in the backplane connector.
• Secure the module using the top and bottom retaining screws to prevent vibration-related disconnection.
• Use shielded twisted-pair cabling for analog signals to minimize electromagnetic interference (EMI).
• Ensure proper grounding of the cable shields at the signal source or the module end, depending on system requirements, to prevent ground loops.
• Maintain adequate clearance around the module for proper ventilation and cooling within the control cabinet.

FAQ

Is the 1746-NI8 still in production?

No, the 1746-NI8 has been discontinued by the manufacturer. We provide high-quality surplus and refurbished units to support legacy system maintenance.

What signals does this module accept?

The 1746-NI8 is configured to handle standard analog inputs, specifically 20 mA current loops and 10 VDC voltage signals.