1771-IAD Advantages
The Allen‑Bradley 1771-IAD 16-channel digital input module stands out from comparable 1771 I/O modules in several key areas.
16-channel high-density AC discrete input design. The Allen‑Bradley 1771-IAD 16-channel digital input module integrates 16 independent AC input points, the Allen‑Bradley 1771-IAD 16-channel digital input module saves chassis slots for projects with large quantities of AC sensing signals.
Optical isolation protection. The Allen‑Bradley 1771-IAD 16-channel digital input module adopts optical isolation between field AC circuit and PLC backplane circuit, the Allen‑Bradley 1771-IAD 16-channel digital input module prevents field surge and noise from damaging the controller backplane.
Individual channel LED status feedback. The Allen‑Bradley 1771-IAD 16-channel digital input module is equipped with LED for each channel, the Allen‑Bradley 1771-IAD 16-channel digital input module allows on-site technicians to quickly check which input point is triggered.
Simple wiring and terminal maintenance. The Allen‑Bradley 1771-IAD 16-channel digital input module uses a detachable screw terminal block, the Allen‑Bradley 1771-IAD 16-channel digital input module facilitates wiring replacement and module swap without reworking all field cables.
Full compatibility with standard 1771 chassis. The Allen‑Bradley 1771-IAD 16-channel digital input module can be installed in all standard 1771 I/O chassis, the Allen‑Bradley 1771-IAD 16-channel digital input module works with other 1771 input, output and communication modules in the same rack.
Stable for long-term legacy field acquisition. The Allen‑Bradley 1771-IAD 16-channel digital input module is a classic standard AC input spare part for PLC‑5 systems, the Allen‑Bradley 1771-IAD 16-channel digital input module is widely stocked for old production line emergency replacement.
1771-IAD Applications
Field AC discrete signal acquisition for PLC‑5 racks. The Allen‑Bradley 1771-IAD 16-channel digital input module is a standard AC digital input unit within Allen‑Bradley 1771 PLC‑5 systems, the Allen‑Bradley 1771-IAD 16-channel digital input module receives signals from limit switches, proximity sensors and push buttons.
Packaging and conveyor machine control cabinets. The Allen‑Bradley 1771-IAD 16-channel digital input module collects AC sensor feedback signals from legacy sorting lines, packaging machines and belt conveyors.
Water and wastewater pump and valve feedback monitoring. The Allen‑Bradley 1771-IAD 16-channel digital input module monitors AC status feedback of pumps, gate valves and auxiliary equipment.
Chemical plant auxiliary skid control. The Allen‑Bradley 1771-IAD 16-channel digital input module is used for discrete status collection on PLC‑5 based process skids.
Spare replacement for end-of-life automation equipment. The Allen‑Bradley 1771-IAD 16-channel digital input module is stocked as spare-replacement unit for existing 1771-IAD field installations to reduce production downtime.
1771-IAD Certifications & Compliance
The Allen‑Bradley 1771-IAD 16-channel digital input module holds the following international safety and compliance approvals:
UL listed — North‑American industrial control equipment safety approval.
CE certification — European industrial control equipment safety and EMC compliance.
C‑Tick marked — EMC compliance for Australian and New Zealand markets.
Class I Division 2 certified — Suitable for installation in specified hazardous classified locations.
All units supplied are 100% new original Allen‑Bradley parts. Every Allen‑Bradley 1771-IAD 16-channel digital input module unit is functionally tested before dispatch, packed in professional anti-static packaging, and covered by a one-year warranty from the date of delivery.
