Product Overview
Industrial control systems demand precise and reliable signal acquisition from field devices. The Allen-Bradley 1734-IB2 is a digital DC sinking input module from the POINT I/O series, engineered by Rockwell Automation to deliver exactly that. Its compact form factor saves valuable panel space while maintaining robust performance.

Technical Specifications Breakdown
Key parameters for the 1734-IB2 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Module Type | Digital DC Sinking Input Module |
| Number of Inputs | 2 |
| Input Voltage | 24 Volts DC |
| Maximum Input Current | 5 milliamps |
| POINTBus Current | 75 milliamps |
| Power Dissipation | 2.4 BTU/hour |
Industry Applications
Common applications include monitoring conveyor belt presence sensors, detecting part-in-place on assembly stations, and reading status from safety interlocks. The 24V DC sinking input design ensures compatibility with standard industrial sensors, reducing integration complexity. For cost-conscious operations, the 1734-IB2 provides a low-channel-count solution that minimizes waste when only two inputs are needed, improving operational ROI by avoiding over-specification.

Installation & Setup Guidance
Mount the module on its designated base with the keyswitch set to position 1. Secure the Removable Terminal Block (RTB) with a torque of 0.8 N-m (7 lb-in). Connect 24V DC nominal power (range 10 to 28.8V DC) to the input terminals. The open-style enclosure allows horizontal or vertical mounting orientation, simplifying cabinet layout. Ensure the POINTBus current draw of 75 mA at 5V DC is within the bus power budget.
Maintenance & Reliability
The module operates reliably in temperatures from -20 to 55 °C (-4 to 131 °F). Periodic inspection of terminal connections and environmental conditions is recommended. Keep the enclosure free of dust and moisture to maintain performance. No internal user-serviceable parts exist; contact qualified personnel for any issues.
Compatibility & Integration
This flexibility allows connection to various PLC and DCS systems, making it a versatile choice for both new installations and upgrades.
Selection Guide & Purchasing Advice
When selecting a digital input module, evaluate channel count, voltage, and sinking versus sourcing requirements. The 1734-IB2 fits applications needing two sinking inputs at 24V DC. For larger systems, consider higher-channel-count modules. AutoDCSTech offers this module with detailed specifications to support your purchasing decision. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 1734-IB2 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
