The Allen-Bradley 1746-IV16 is a 16-point digital input module designed for use with the SLC 500 programmable logic controller (PLC) system. This module provides high-density input capability, allowing for the monitoring of up to 16 discrete signals from field devices such as sensors, switches, and pushbuttons. It is engineered for industrial environments requiring reliable 10-30 VDC sinking input signal processing.
Features
16-point digital input density for space-efficient I/O configuration.
Compatible with 10-30 VDC sinking input signal ranges.
Designed for seamless integration into the SLC 500 chassis backplane.
Low power consumption with a backplane current load of 85 mA at 5 VDC.
Robust construction suitable for general-purpose industrial automation applications.
Applications
This module is widely utilized in manufacturing and process control environments for interfacing field-level digital signals with the SLC 500 controller. Typical applications include machine status monitoring, conveyor control, assembly line sequencing, and general discrete signal acquisition in automated systems.
Technical Specifications
Product Model
1746-IV16
Module Type
Digital Input Module
Input Points
16
Voltage Range
10-30 VDC
Input Type
Sinking
Backplane Current Load
85 mA at 5 VDC
Manufacturer
Allen-Bradley
Installation Guidelines
Ensure the PLC system power is disconnected before installing or removing the module from the chassis.
Verify that the module is fully seated in the slot and the locking tab is engaged to ensure a secure backplane connection.
Use appropriate wiring practices for DC input circuits, ensuring that common return paths are correctly established for sinking inputs.
Maintain proper clearance around the chassis to allow for adequate ventilation and cooling of the I/O modules.
Follow standard ESD (Electrostatic Discharge) precautions when handling the module to prevent damage to internal circuitry.
Route signal cables away from high-voltage power lines and sources of electromagnetic interference (EMI) to maintain signal integrity.
FAQ
What is the input voltage range for the 1746-IV16?
The 1746-IV16 module is designed to operate within a 10-30 VDC input range.
Is this module compatible with all SLC 500 chassis?
Yes, the 1746-IV16 is designed to fit into any standard SLC 500 I/O chassis slot.
What does the sinking input configuration mean?
A sinking input module requires the field device to switch the positive voltage to the input terminal, effectively providing the current path to the common return.
