OVERVIEW

Official designation: Allen-Bradley 1794-IB16 (Flex I/O, Discrete Input Module)

Role/Application: A high-density Flex I/O module providing sixteen 24V DC sinking inputs for reliably acquiring digital signals from industrial field devices in automation systems.

KEY SPECS SUMMARY

Power: 55 mA at 5V DC

Interfaces / Ports: 16 sinking inputs

Indicators: 16 channel LEDs

Operating Temp: 0 to 55 degrees C

Platform / Compatibility: Requires 1794 terminal base

Limit: 8 mA max per input

Lifecycle: Existing

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the nominal input voltage and the maximum off-state leakage current for this module?

A: Nominal voltage is 24V DC; maximum off-state leakage current is 1.5 mA.

Wiring & Installation:

Q: Which Flex I/O terminal bases are compatible with the 1794-IB16 module?

A: Compatible terminal bases are the 1794-TB2, 1794-TB3, 1794-TB3S, and 1794-TB32.

Troubleshooting & Compatibility:

Q: How does the module indicate an active input signal for troubleshooting purposes?

A: An illuminated channel LED indicates that the corresponding input point is receiving a signal.

Replacement & Upgrades:

Q: Is there a similar Flex I/O module available that offers fewer inputs but a faster input response time?

A: Yes, the 1794-IB8 has 8 inputs but offers a faster input response time.