The Allen-Bradley 1794-IB16 Flex I/O module delivers reliable discrete input monitoring. This unit uses sixteen sinking channels with a 24VDC nominal voltage. It places I/O hardware near field sensors to cut cable runs. This architecture lowers installation expenses and simplifies maintenance tasks. The 1794-IB16 supports any 1794-series communication adapter for flexible network integration.
Product Procurement & Buyer Guide
Procurement engineers must verify terminal base compatibility for this module. The 1794-IB16 works with the 1794-TB3, 1794-TB3S, and 1794-TB3K units. It also accepts the 1794-TB3SK, 1794-TBKD, and 1794-TB37DS bases. Each channel provides current sinking inputs with a 10 to 31.2 VDC range. The module draws only 30mA from the 5V Flexbus supply.
This component solves key industrial pain points for system designers. It eliminates long home-run cables from sensors to a central cabinet. The 1794-IB16 mounts directly on a DIN rail near the machine. This placement reduces copper costs and simplifies troubleshooting for maintenance teams. The module weighs just 0.19 lbs for easy handling.
Application engineers should select the correct communication adapter for their network. The 1794-IB16 pairs with the 1794-AENT for EtherNet/IP systems. It also works with the 1794-ADN for DeviceNet or the 1794-ACN for ControlNet. For legacy installations, use the 1794-ASB remote I/O adapter. Each channel includes a yellow LED for immediate status feedback.
Step-by-Step User & Installation Guide
Begin installation by mounting the chosen terminal base on a standard DIN rail. The 1794-IB16 snaps securely onto the base unit after wiring. Ensure the module aligns correctly with the base connector pins. Apply firm, even pressure until the module locks into place. The operating temperature range spans 0 to 55 degrees Celsius.
Wire each field device to the appropriate terminal on the base unit. The 1794-IB16 supports sink wiring configuration for all sixteen inputs. Connect the sensor common wire to the DC common terminal. Each input requires a minimum on-state current of 2.0mA to register a true signal. The off-state voltage must not exceed 5V DC to ensure reliable detection.
Power the module through the Flexbus connection from the communication adapter. The 1794-IB16 draws its operating current directly from this backplane. Verify the adapter provides adequate power for the entire I/O bank. The module dissipates a maximum of 6.1W at 31.2V DC. This low thermal output allows dense panel layouts without overheating.
Check each input channel by activating the connected sensor and observing the LED. The yellow indicator illuminates when the channel detects an on-state signal. Confirm the off-state current stays below 1.5mA to avoid false readings. The module handles 30g operating shock and 5g vibration at 10 to 500 Hz. This rugged design ensures reliable operation in industrial environments.
Logistics & Standard Packaging Details
- One Allen-Bradley 1794-IB16 Flex I/O input module
- Product label with catalog number and UPC 10612598137784
- Installation instructions reference guide (if applicable)
- Express shipping available via FedEx, UPS, and DHL
