The Allen-Bradley 1746-IB32 is a high-density 32-point DC digital input module designed for the SLC 500 programmable logic controller system. This module provides reliable signal acquisition for industrial control applications, featuring a sink-load configuration and a robust design suitable for standard 24VDC control environments. It is engineered to integrate seamlessly into the SLC 500 chassis, offering efficient I/O expansion for complex automation tasks.
Features
32-point digital DC input capacity for high-density I/O requirements.
Sink-load input configuration with 8 points per common.
Wide operating voltage range: 15-30 VDC at 50 degC and 15-26.4 VDC at 60 degC.
Low backplane power consumption of 50 mA at 5 V.
Designed for direct compatibility with the Allen-Bradley SLC 500 controller series.
Applications
The 1746-IB32 module is widely utilized in industrial automation systems where high-density digital input monitoring is required. Typical applications include machine control, process monitoring, and integration with sensors, limit switches, and other 24VDC signaling devices within manufacturing plants and distributed control systems.
Technical Specifications
Product Model
1746-IB32
Input Type
Digital DC Input
Number of Inputs
32
Points per Common
8
Input Voltage Range
15-30 VDC (at 50 degC) / 15-26.4 VDC (at 60 degC)
Backplane Current
50 mA at 5 V
Load Type
Sink
Installation Guidelines
Ensure the SLC 500 chassis power is disconnected before installing or removing the module to prevent electrical damage.
Slide the module into the designated slot in the SLC 500 chassis, ensuring proper alignment with the backplane connector.
Secure the module using the integrated locking tabs or mounting screws to ensure a stable connection and proper grounding.
Use appropriate shielded cabling for input signals to minimize electromagnetic interference (EMI) in high-noise industrial environments.
Maintain adequate ventilation around the chassis to ensure operation within the specified temperature ranges (up to 60 degC).
Handle with care using ESD-safe practices to prevent damage to internal electronic components.
FAQ
What is the input voltage for the 1746-IB32? The module operates with a DC input voltage range of 15-30 VDC at 50 degC, or 15-26.4 VDC at 60 degC.
How many points does this module support? The 1746-IB32 supports 32 digital inputs, organized into 8 points per common.
Is this module compatible with all SLC 500 systems? The 1746-IB32 is designed for the SLC 500 platform. Please verify your specific chassis and power supply capacity to ensure compatibility with the module's backplane current draw of 50 mA.
