Introduction to the Allen-Bradley 1746-IB16
Upgrading or maintaining an SLC 500 system? The Allen-Bradley 1746-IB16 is a medium-density digital DC sinking input module that delivers reliable performance for your control architecture. As part of the renowned SLC 500 series, this module provides sixteen discrete input channels, making it an ideal choice for interfacing with a wide range of field devices.
Key Technical Specifications
The 1746-IB16 operates at a nominal input voltage of 24VDC, with an operating voltage range of 10-30VDC. Each channel draws a nominal input current of 8mA at 24VDC, ensuring efficient power usage. The module features a signal delay of 8 ms for both ON and OFF transitions, providing predictable response times for your control logic. With a maximum OFF-state voltage of 5.0VDC and OFF-state current of 1 mA, it ensures reliable signal isolation. The module draws 0.050 A from the backplane and dissipates 0.20 Watts per channel.
Applications and Use Cases
The 1746-IB16 excels in general-purpose DC input applications. It interfaces seamlessly with switches, limit switches, proximity sensors, pushbuttons, and auxiliary contacts of relays and contactors. Whether you’re running a packaging line, a material handling system, or a complex manufacturing process, this module delivers the dependability you expect from Allen-Bradley.
Installation and Compatibility
Installing the 1746-IB16 is straightforward. It mounts in any available I/O slot of a 1746 chassis and is compatible with all SLC 500 processors. The module supports local installation or distributed I/O via 1746 communication adapters such as Remote I/O (RIO) and Ethernet. It features a removable terminal block for easy wiring and module replacement, and status LED indicators provide at-a-glance monitoring of each channel.
Maintenance and Reliability
To ensure long-term reliability, periodic inspections are recommended. Check for secure terminal connections and verify that the module’s operating environment stays within the specified range of 0 to 60 °C (32 to 140 °F) with 5-95% relative humidity. The 1746-IB16 is built to withstand operational shock of 30G and vibration of 2.5G at 57-200 Hz, making it suitable for demanding industrial settings. Its electro-optical isolation (tested at 1500V) protects your control logic from electrical noise and transients.
Why Choose the 1746-IB16 from SpareTechPLC?
When you need a trusted source for your SLC 500 components, SpareTechPLC delivers. We provide genuine Allen-Bradley 1746-IB16 modules to keep your operations running smoothly. Verify current lifecycle status and availability with SpareTechPLC before ordering.
Frequently Asked Questions
Q: What is the input voltage range of the 1746-IB16?
A: The module operates with an input voltage range of 10-30VDC, with a nominal voltage of 24VDC.
Q: How many input channels does this module have?
A: It features sixteen (16) sinking input channels grouped into one input group.
Q: What is the backplane current draw?
A: The 1746-IB16 draws 0.050 A at 5VDC from the backplane.
Q: Is this module compatible with all SLC 500 chassis?
A: Yes, it is compatible for use with any SLC 500 chassis.
Q: What is the signal delay time?
A: The signal delay is 8 ms for both ON and OFF transitions.
