Purchase now 1794-IB10XOB6 to optimize your distributed control systems with a high-performance, space-saving I/O solution. The Allen-Bradley 1794-IB10XOB6 is a versatile 24V DC combination module belonging to the Flex I/O family, featuring 10 discrete inputs and 6 sourcing outputs in a single compact footprint. This module is specifically designed to interface with industrial sensors and actuators while maintaining high signal integrity across the Flexbus backplane. By consolidating both input and output functions, automation engineers can maximize rack density and reduce the physical size of control enclosures. This genuine OEM module ensures deterministic response times and is fully compatible with any Flex I/O adapter, including EtherNet/IP, ControlNet, and DeviceNet, making it an ideal choice for both legacy system maintenance and modern automation retrofits.
What Is the 1794-IB10XOB6?
The 1794-IB10XOB6 is a digital combination module that provides 10 current-sinking inputs and 6 current-sourcing outputs. It operates on a nominal 24V DC field power supply and interfaces with the PLC through a terminal base unit (such as the 1794-TB3 or 1794-TBN). The input section is designed to detect signals from limit switches, proximity sensors, and pushbuttons, while the output section provides up to 0.5A per channel to drive solenoids, small motor starters, and indicators. The integrated optical isolation protects the sensitive backplane logic from electrical noise and transients common in factory environments. This combination of density and protection makes the 1794-IB10XOB6 a cornerstone for distributed I/O architectures in automotive assembly, food processing, and material handling applications.
Key Technical Specifications
- Part Number: 1794-IB10XOB6
- Manufacturer: Allen-Bradley / Rockwell Automation
- Number of Inputs: 10 Sinking Inputs
- Number of Outputs: 6 Sourcing Outputs
- Voltage Category: 24V DC nominal
- Operating Voltage Range: 10V DC to 31.2V DC
- Output Current Rating: 0.5A per output (3.0A per module)
- On-State Voltage: 10V DC minimum (Inputs)
- Off-State Current: 1.5 mA maximum (Inputs)
- Isolation Voltage: 50V (continuous) between field side and logic side
Architecture and Flexibility
The 1794 Flex I/O architecture allows the 1794-IB10XOB6 to be removed and inserted under power (RIUP), which is critical for minimizing downtime during maintenance. The module utilizes a 16-bit data word structure to communicate with the adapter. Its internal logic circuitry is powered via the Flexbus, while the field-side sensors and actuators are powered through the terminal base. This separation ensures that a field-side short circuit does not compromise the communication between the adapter and the rest of the I/O rack.
Expert Tips
When wiring the 1794-IB10XOB6, an expert tip often overlooked is the importance of using the correct terminal base to match your current requirements. For applications with high vibration, the 1794-TB3S with spring-clamp terminals is superior to standard screw terminals as it prevents wire loosening over time. Additionally, always implement external flyback diodes when driving inductive DC loads with the sourcing outputs; although the module has internal protection, external suppression significantly extends the lifespan of the internal switching transistors by absorbing the counter-electromotive force (EMF) spikes at the source.
Frequently Asked Questions
Q: Can I use the 1794-IB10XOB6 with an AC power supply?
A: No, this module is strictly rated for DC voltage. Attempting to power the module or field side with AC will cause permanent damage to the internal optical isolators and transistors.
Q: What is the meaning of a «sinking» input vs «sourcing» output in this module?
A: The inputs are sinking, meaning the module provides a path to ground and requires a positive signal from the sensor. The outputs are sourcing, meaning the module provides the 24V DC power to the load.
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