OVERVIEW

Official designation: Allen-Bradley 1746-IB16 (SLC 500, Discrete Sinking Input Module)

This digital input module features 16 sinking (NPN) input channels, providing reliable 24V DC signal detection for fast response applications within the SLC 500 automation platform.

KEY SPECS SUMMARY

Input Voltage Range: 10 to 30 Volts DC

Number of Inputs: 16 (eight points per common)

Backplane Current: 110 mA at 5 Volts DC

Indicators: 16 individual input status LEDs

Operating Temp: 0 to 60 degrees C

Platform / Compatibility: SLC 500 chassis

Limit: Input signal delay is 8 ms max

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the nominal input voltage and sinking current rating for this module?

A: The nominal voltage is 24V DC, and the ON-state current is 4.0 mA typical.

Wiring & Installation:

Q: What is the backplane current draw required by the 1746-IB16 module?

A: The module draws 110 mA of current from the 5 Volts DC backplane.

Troubleshooting & Compatibility:

Q: What are the maximum signal delay times for ON and OFF transitions?

A: Both the ON and OFF signal delays are a maximum of 8 milliseconds.

Replacement & Upgrades:

Q: Is a modern replacement available for the discontinued 1746-IB16 SLC 500 module?

A: The module is discontinued; Refer to the latest manufacturer manual for alternative products.