Allen-Bradley 1794-IB16D FLEX I/O Input Module
FLEX I/O digital input module, 24V DC, 16 sinking inputs, diagnostics, 61131-2 Type 3 compatible, Flexbus current 60 mA @ 5V DC
Lifecycle Status: Active Mature
The Allen-Bradley 1794-IB16D FLEX I/O digital input module is designed for distributed 24V DC machine and process I/O applications that require channel-level diagnostics in a compact in-cabinet architecture. It provides 16 sinking inputs and supports diagnostic monitoring for sensor power open wire, short circuit, and reverse polarity conditions.
Lifecycle Status: Active Mature
- FLEX I/O digital DC input module
- 16 sinking inputs
- 24V DC input module
- 61131-2 Type 3 compatible sinking inputs
- On-state voltage: 10…31.2V DC
- On-state current: 2.0…12.1 mA
- Off-state voltage: 5.0V DC max
- Off-state current: 1.5 mA max
- Nominal input impedance: 3.1 kΩ
- Isolation voltage: 50V continuous, basic insulation, type tested at 2121V DC for 2 s between field side and system
- Input filter time configurable for off-to-on and on-to-off operation
- Flexbus current: 60 mA at 5V DC
- Power dissipation: 4.8 W max at 31.2V DC
- Thermal dissipation: 16.4 BTU/hr max at 31.2V DC
- Power supply: 24V DC
- Temperature rating: 0…55 °C
- Recommended terminal base units: 1794-TB32, 1794-TB32K, 1794-TB32S, 1794-TB32SK
This module is suited to distributed industrial automation systems using FLEX I/O adapters on EtherNet/IP, ControlNet, DeviceNet, and related control architectures where compact field wiring, modular expansion, and diagnostic visibility are important for maintenance and troubleshooting.