Description
Allen-Bradley 1771-IB Digital DC Input Module for PLC-5 Systems
The 1771-IB is an 8-channel digital DC input module from Allen-Bradley’s PLC-5 series. It converts DC signals from field devices into logic levels for the processor. This module offers a compact and cost-effective way to expand system input capacity. It works with a 10-27V DC operating range and ensures reliable performance in industrial environments.
Key Technical Specifications
- Brand: Rockwell Automation / Allen-Bradley
- Model: 1771-IB
- Module Type: Digital DC Input
- Number of Inputs: 8
- Voltage Range: 10-27V DC
- Backplane Current: 74 mA
- Off-State Current: 3.0 mA max
- Signal Delay (On): 12 ms (±7 ms)
- Signal Delay (Off): 20 ms (±7 ms)
- Isolation: Opto-electrical
- Wiring Arm: 1771-WN (included)
Installation & Compatibility
- Install the module in a 1771 I/O chassis with a PLC processor.
- Use keying bands between pins 14-16 (upper) and 4-6 (lower).
- It supports ½, 1, and 2-slot I/O addressing.
- Works with source-switching devices like dry-contact switches.
Packaging & Delivery
- Each unit includes one 1771-IB module and a wiring arm.
- We ship via FedEx, UPS, or DHL for fast and reliable delivery.
Comparison with Similar Modules
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