Allen-Bradley 1746-IG16 SLC 500 Digital DC Input Module

Product Overview

The Allen-Bradley 1746-IG16 is a digital DC input module. It belongs to the SLC 500 series. This module provides 16 source inputs. It operates on a 4.5-5.5 Volts DC range. It is perfect for TTL or BCD input applications. The module draws 140 milliamps from the backplane. It has a signal delay of 0.25 or 0.5 milliseconds. This ensures fast and reliable data capture. The step response is 100 milliseconds in and 2.5 milliseconds out. Each point uses only 0.02 watts. The minimum power requirement is 0.7 watts. Total power consumption is 1 watt. The module uses a removable terminal block. The part number for this block is 1746-RT25B. It also requires an I/O connection cable. Use the 1746-HT or 1746-HCA for this purpose. An octal kit is available as the 1746-RL42.

Application Scenarios

This module is ideal for high-speed digital logic. It works well with TTL level signals. Use it for BCD encoded data from thumbwheels. It fits into industrial control cabinets. It connects directly to SLC 500 processors. It is suitable for sorting and counting systems. It handles fast sensor inputs. It works in automated test equipment. It is a key part of machine control systems. It integrates with existing Rockwell platforms. It helps monitor discrete device states. It is reliable for 24/7 production lines.

Technical Specifications

The module has 16 input points. The voltage range is 4.5-5.5 VDC. It is a source input type. The backplane current draw is 140 mA at 5 VDC. The signal delay is selectable. It can be 0.25 or 0.5 milliseconds. The off-to-on step response is 100 milliseconds. The on-to-off step response is 2.5 milliseconds. Power dissipation is 0.02 watts per point. Minimum power is 0.7 watts. Total power is 1 watt. The module uses a 1746-RT25B terminal block. The I/O connection uses 1746-HT or 1746-HCA cables. The octal kit is 1746-RL42. It is a digital DC input module.

Installation & Maintenance Guide

Install the module into an SLC 500 chassis. Ensure the chassis power is off. Align the module with the backplane connector. Push firmly until it locks. Connect the 1746-HT or 1746-HCA cable. Attach the 1746-RT25B terminal block. Wire the input signals correctly. Follow the wiring diagram for your application. Use proper torque for terminal screws. For maintenance, inspect connections regularly. Clean the module with a dry cloth. Do not use solvents. Replace the module if it shows damage. Test the module after installation. Check the input status LEDs. Ensure all 16 points function correctly.

Packing List

One Allen-Bradley 1746-IG16 module. One 1746-RT25B removable terminal block. One installation instruction manual. Product is packaged in anti-static material. It is shipped in a secure box. Shipping is via FedEx, UPS, or DHL. The package is labeled for industrial equipment.