Product Overview
Maintenance engineers know the pain: a single failed I/O point can stall an entire production line. The Allen-Bradley 1794-IB10XOB6 digital combination module solves that problem by packing 10 current sink inputs and 6 current source outputs into one compact Flex I/O 1794 series unit. Both input and output sections operate at a nominal 24 VDC, so you can standardize on a single control voltage across the panel. This module is a practical drop-in for mixed-signal applications where space and wiring simplicity matter.
Technical Specifications
The 1794-IB10XOB6 delivers 10 current sink inputs rated at 8 mA nominal on-state current at 24 VDC, with a nominal input impedance of 4.8 kilohms. The 6 current source outputs share the same 24 VDC nominal on-state voltage and handle up to 2 A per channel, enough to drive relays, solenoids, and pilot devices directly. The module draws 50 mA from the Flexbus, keeping backplane loading predictable. Operating temperature spans -20°C to 55°C, covering most industrial control cabinets. Note that the unit has no IP rating (open style), so it belongs inside a protected enclosure.
| Specification | Value |
|---|---|
| Manufacturer | Allen-Bradley |
| Series | Flex I/O 1794 |
| Part Number | 1794-IB10XOB6 |
| Product Type | Digital Combination I/O Module |
| Inputs | 10 (current sink) |
| Outputs | 6 (current source) |
| Nominal On-State Input Voltage | 24 VDC |
| Nominal On-State Output Voltage | 24 VDC |
| Nominal Input Impedance | 4.8 kilohms |
| Nominal On-State Input Current | 8 mA at 24 VDC |
| Nominal On-State Output Current | 2 A per channel |
| Flexbus Current | 50 mA |
| IP Rating | None (Open) |
| Operating Temperature | -20°C to 55°C |
Replacement and Upgrade Guide
When a legacy Flex I/O module fails, downtime costs climb by the minute. The 1794-IB10XOB6 is a direct-fit replacement for existing Flex I/O 1794 chassis positions, so you avoid re-engineering the panel. Before ordering, confirm your existing module’s input/output count and voltage match the 10-input, 6-output, 24 VDC configuration described here. Because the module is open-style, verify that your enclosure still provides the environmental protection the original installation required. SpareTechPLC stocks this part for engineers who need fast turnaround on critical spares.
Installation and Setup
Mount the module in a Flex I/O 1794 chassis and secure it according to the series’ standard mechanical practice. Keep input and output wiring separated to reduce noise coupling, and respect the 2 A per channel output limit when selecting loads. Since the 1794-IB10XOB6 has no IP rating, install it inside a cabinet that shields it from dust, moisture, and direct washdown. Verify 24 VDC polarity at the field terminals before energizing. Allow the module to reach stable cabinet temperature before final calibration checks.
Maintenance and Reliability
From a maintenance engineer’s perspective, the 1794-IB10XOB6 rewards simple habits. Inspect terminal connections quarterly for looseness or corrosion, and check that cabinet temperature stays within the -20°C to 55°C operating range. Watch for output channels that no longer switch cleanly at 2 A; this often signals an aging load rather than a module fault. Keep spare units on the shelf to convert a potential hours-long outage into a minutes-long swap. That spare-parts strategy is the cheapest reliability insurance you can buy.
Compatibility and Integration
The 1794-IB10XOB6 integrates into Flex I/O 1794 systems through the shared Flexbus, drawing 50 mA from the backplane. It works alongside other 1794 series modules in the same chassis, letting you mix input, output, and specialty functions as your application demands. Because the module uses standard 24 VDC current sink inputs and current source outputs, it interfaces with common field devices such as pushbuttons, limit switches, relays, and solenoid valves. Always confirm your adapter and chassis support the total Flexbus current load before adding modules.
Selection Guide
Before you buy, verify four things: the 10-input/6-output channel count, the 24 VDC nominal voltage for both sections, the 2 A per channel output rating, and the open-style (no IP rating) construction. If your application needs sealed protection, plan for an appropriate enclosure. Match the module to your existing Flex I/O 1794 chassis and adapter. For current pricing, availability, and lifecycle status, contact SpareTechPLC and confirm the part meets your project requirements.
Frequently Asked Questions
What makes the 1794-IB10XOB6 different from a standard input-only module?
It combines 10 current sink inputs and 6 current source outputs in one unit, both at 24 VDC, reducing the number of modules needed in a Flex I/O chassis.
Can the outputs drive high-current loads directly?
Each output channel is rated for 2 A at 24 VDC nominal. Check your load current against this limit before connecting devices.
Is this module suitable for washdown environments?
No. The 1794-IB10XOB6 has no IP rating and is open-style, so it must be installed inside a protective enclosure.
What is the operating temperature range?
The module operates from -20°C to 55°C, suitable for most industrial control cabinets under standard atmospheric conditions.
How much current does it draw from the backplane?
The Flexbus current draw is 50 mA. Include this in your chassis power budget when adding modules.
