Product Summary
The 1794-OB16P Flex I/O module controls sixteen discrete 24VDC field devices. It delivers 500 mA per channel with electronic protection. This module reduces downtime by eliminating fuse replacements. Engineers use it for solenoids, lamps, and relay coils. It integrates seamlessly into Logix and legacy control systems.
Product Procurement & Buyer Guide
Understanding the 1794-OB16P Protection Features
Each output channel on the 1794-OB16P includes electronic fusing. This design protects against overcurrent conditions without physical fuse swaps. The module handles surge currents up to 2 Amps for 50 milliseconds. This capability supports high-inrush loads like incandescent lamps. You benefit from reduced maintenance costs and faster fault recovery.
Matching Power Supply Requirements
This module requires an external DC supply between 10 and 31.2 Volts. The nominal operating voltage is 24 Volts DC. You must provide a supply current between 25 and 75 mA. The module draws a FlexBus current of 60 mA at 5 Volts DC. Plan your power budget with a maximum dissipation of 5 Watts.
Selecting the Correct Terminal Base
The 1794-OB16P requires a compatible terminal base for installation. Compatible bases include the 1794-TB2, 1794-TB3, and 1794-TB3S. You can also use the 1794-TB3K and 1794-TB3SK models. The terminal base provides DIN rail mounting and screw clamp connections. Ensure your base supports daisy-chaining for power distribution.
Evaluating Environmental Tolerances
This module operates reliably from 0 to 55 degrees Celsius. It can survive storage temperatures from -40 to 85 degrees Celsius. The unit tolerates non-condensing humidity levels from 5 to 95 percent. It withstands operating shock of 30g and vibration of 5g. These ratings ensure stable performance in demanding industrial environments.
Confirming Controller Compatibility
The 1794-OB16P works with ControlNet, DeviceNet, and EtherNet/IP adapters. It functions as distributed I/O for ControlLogix and CompactLogix controllers. You can also use it with legacy PLC5 and SLC500 systems. This flexibility allows for easy upgrades and system expansions. Always verify your specific communication adapter for configuration details.
Understanding Output Performance Metrics
The OFF to ON state delay is just 0.5 milliseconds. The ON to OFF state delay takes 1.0 millisecond. Each channel provides a minimum output current of 1.0 mA. The maximum on-state voltage drop is 0.5 Volts DC. The off-state leakage current is only 0.5 mA per channel.
Logistics & Standard Packaging Details
- One Allen-Bradley 1794-OB16P Flex I/O output module
- The module ships in an anti-static protective package
- A product documentation insert is included
- We offer express delivery via FedEx, UPS, and DHL
- The package is designed for safe industrial transit
