Allen-Bradley 1771-IBD/B Digital DC Input Module
$123.00
$320.00
Description
Allen-Bradley 1771-IBD/B Digital DC Input Module
The Allen-Bradley 1771-IBD/B, also cataloged as the 1771-IBD Digital DC Input Module, operates as a dedicated hardware component for discrete signal acquisition within PLC-5 control systems. It receives 10-30 VDC sinking input signals from field devices and transfers status data through the 1771 I/O chassis backplane.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-IBD/B |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.25 kg |
| Dimensions | 237.5 mm x 183 mm x 55 mm |
| Power Consumption | 1.0-7.3 W |
| Series | 1771 Series / PLC-5 |
| Product Type | Digital DC Input Modules |
| Number of Inputs | 16 sinking DC inputs |
| Input Voltage Range | 10-30 VDC |
| On-State Voltage | >=10 VDC |
| Off-State Voltage | <=5 VDC |
| Input Current | 4.5 mA at 10 VDC; 15 mA at 30 VDC |
| Off-State Current | <=2.0 mA at 5 VDC |
| Response Time | 1 ms OFF-to-ON; 1 ms or 6 ms ON-to-OFF |
| Backplane Current | 130 mA at 5 VDC |
| Input Impedance | 2.2 kOhm maximum |
| Isolation Type | Optoelectrical isolation with input filtering |
| Wiring Arm | 1771-WH |
| Addressing Modes | 1/2 slot, 1 slot, and 2 slot addressing |
| Compatible Chassis | 1771 I/O chassis except 1771-A1, 1771-A2, and 1771-A4 |
EtherNet/IP and PLC Backplane Integration
The 1771-IBD/B is designed for PLC-5 rack-based I/O architectures and communicates discrete input states through the 1771 backplane interface. The module provides optoelectrical isolation between field input circuits and the controller-side interface, with integrated filtering for electrical noise reduction.
The Allen-Bradley 1771 platform supports modular I/O density scaling through chassis expansion and deterministic backplane data exchange. The 1771-IBD/B requires a compatible PLC-5 rack configuration and supports LED channel indicators for direct input state observation during system diagnostics.
Frequently Asked Questions
Q: What type of field signals can the 1771-IBD/B accept?
A: The module accepts 10-30 VDC sinking input signals from compatible switches, sensors, and pushbutton devices.
Q: What backplane power requirement does the 1771-IBD/B have?
A: The module requires 130 mA from the 5 VDC backplane supply.
Q: Does the 1771-IBD/B provide electrical isolation between field wiring and the PLC backplane?
A: Yes. The module uses optoelectrical isolation with input filtering between field input circuits and the controller interface.
Field Installation Guidelines
Install the 1771-IBD/B into a compatible 1771 I/O chassis slot and verify module keying, connector alignment, and wiring arm installation before applying power. Confirm field device polarity and DC voltage levels before connecting input terminals.
Route low-level DC signal wiring separately from high-voltage power conductors to reduce electromagnetic interference. Maintain proper panel grounding and ensure the chassis grounding system is connected according to industrial control installation practices.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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