Allen-Bradley 1746-OG16 SLC 500 Digital DC TTL Output Module

Product Overview

The Allen-Bradley 1746-OG16 is a SLC 500 Digital DC TTL Output Module designed for precise control of TTL loads and sink-load displays in industrial automation. This output module features sixteen channels with a voltage range of 4.5-5.5 Volts DC, making it suitable for low-voltage digital signaling applications. It occupies a single slot in a SLC 500 chassis, simplifying integration into existing control systems. Engineers seeking reliable, high-speed output for TTL-compatible devices will find this module a practical choice.

Technical Specifications Breakdown

Key parameters for the 1746-OG16 are listed below for quick reference:

Industry Applications

This digital output module is well-suited for controlling TTL-compatible displays and logic loads in automated assembly lines, test equipment, and packaging machinery. Its fast step response—60 ms in and 2.5 ms out—enables precise timing for high-speed operations. The 16-channel configuration allows efficient grouping of multiple outputs, reducing wiring complexity.

Installation & Setup Guidance

Install the 1746-OG16 into any single slot of a SLC 500 chassis. Ensure the backplane connection is secure to provide 5V power to the module’s circuitry. An external 5VDC power supply is required to energize the output circuitry. All 16 channels share a common +VDC terminal. Note that this module uses inverted logic; a NOT instruction in your program will negate the naturally inverted logic for proper operation.

Maintenance & Reliability

To maintain reliable operation, keep the module within its operating temperature range of -13 to 140°F and relative humidity of 5-95% without condensation. Periodically inspect connections and ensure the enclosure maintains Pollution Degree 2 conditions as defined by EN/IEC60664-1. Avoid disconnecting equipment while power is applied.

Compatibility & Integration

It is compatible with all SLC 500 processors and chassis. The data table allows monitoring and forced activation of individual channels, viewable in binary, decimal, octal, or hexadecimal formats.

Selection Guide & Purchasing Advice

When selecting this module, verify your application requires 5V DC TTL output with sinking capability. The 1746-OG16 is available from AutoDCSTech, a trusted supplier of industrial automation parts. Please verify current lifecycle status and availability with AutoDCSTech before ordering.

Troubleshooting & Common Issues

If outputs do not respond, check the external 5VDC power supply and common terminal connections. Verify the program includes a NOT instruction to compensate for inverted logic. For erratic behavior, inspect for voltage ripple exceeding 50 mV peak-to-peak on the DC supply.