The Allen-Bradley 1746-IO12 is a combination I/O module designed for the SLC 500 programmable logic controller system. This module provides a space-efficient solution for applications requiring a mix of digital inputs and relay outputs within a single slot. It features six 120 VAC inputs and six relay outputs, making it suitable for interfacing with various field devices such as sensors, switches, and actuators in industrial automation environments.
Features
Integrated I/O: Combines 6 digital inputs and 6 relay outputs on a single module.
Input Voltage: Designed for 120 VAC input signal compatibility.
Output Versatility: Relay outputs support a wide range of voltages from 24-125 VDC and 120-240 VAC.
SLC 500 Compatibility: Designed for seamless integration into the Allen-Bradley SLC 500 chassis.
Status Indicators: Front-panel LED indicators for monitoring I/O status.
Applications
This module is commonly used in SLC 500 control systems for machine control, process monitoring, and small-scale automation tasks where a limited number of I/O points are required in a compact footprint.
Technical Specifications
Product Model
1746-IO12
Manufacturer
Allen-Bradley
Module Type
Combination Input/Output
Inputs
6 x 120 VAC
Outputs
6 x Relay
Output Voltage Range
24-125 VDC; 120-240 VAC
Backplane Current
70-90 mA
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 chassis, ensuring it is properly aligned with the backplane connector.
Secure the module using the top and bottom retaining screws to ensure a reliable electrical connection and mechanical stability.
Use appropriate wire gauges for terminal connections and ensure all field wiring is properly shielded to minimize EMI.
Follow standard ESD precautions when handling the module to prevent damage to internal circuitry.
FAQ
Is the 1746-IO12 still in production?
No, the 1746-IO12 has been discontinued by the manufacturer. We provide high-quality surplus or refurbished units to support legacy system maintenance.
Can this module be used with any SLC 500 processor?
Yes, the 1746-IO12 is compatible with standard SLC 500 chassis and processor configurations. Please verify your specific rack capacity and power supply load before installation.
