1746-IB16 | Allen Bradley | SLC 500 Series | 16-Channel DC Sinking Input Module

Product Description

The 1746-IB16 input module from Allen Bradley’s SLC 500 series is a compact digital DC sinking input unit designed for general-purpose automation applications. With 16 input channels, it provides reliable signal acquisition across a wide voltage range, ensuring stable performance in industrial control systems.

Technical Specifications

• Manufacturer: Allen Bradley

• Product Line: SLC 500

• Part Number: 1746-IB16

• Category: PLC Input Module

• Module Type: Digital DC sinking input

• Number of Inputs: 16 channels

• Nominal Input Voltage: 24 VDC

• Input Voltage Range: 10–30 VDC

• Nominal Input Current: 8 mA @ 24 VDC

• Signal Delay (ON transition): 8 ms

• Step Response: 100 ms input, 2.5 ms output

• Backplane Current Draw: 85 mA @ 5 VDC (0.050 A total)

• Thermal Dissipation per Channel: 0.20 W

• OFF-State Voltage (max): 5.0 VDC

• OFF-State Current (max): 1 mA

• I/O Connection Options: 1746-HT and 1746-HCA

• Weight: 0.63 lbs (0.28 kg)

• Enclosure Type: Open-style

Key Features

• 16-channel DC sinking input for distributed control.

• Wide voltage range (10–30 VDC) for flexible integration.

• Fast response times for reliable signal processing.

• Compact design compatible with SLC 500 chassis.

• Suitable for general-purpose DC input applications.

Application Scenarios

• Machine control systems requiring multiple DC inputs.

• Packaging and assembly line automation.

• Legacy SLC 500 installations needing expansion with DC input modules.

FAQ

Q: What type of inputs does the 1746-IB16 support?   A: It supports 16 sinking DC inputs within a 10–30 VDC range.

Q: How does this module compare to the 1746-IV16?  A: The 1746-IB16 is a sinking input module, while the 1746-IV16 is a sourcing input module, offering different wiring configurations.

Q: What connectors are compatible with this module?  A: It supports 1746-HT and 1746-HCA I/O connections.