Allen-Bradley 1771-IBN PLC Digital Input Module

FAQ

Q1. What is the 1771-IBN used for?
It is used to receive 10–30 V DC digital signals from field devices such as sensors, switches, and relay contacts into a PLC system.

Q2. How many input channels does it have?
It provides 32 digital input points divided into 4 groups of 8.

Q3. What voltage range does it support?
It supports 10–30 V DC input signals.

Q4. What PLC systems is it compatible with?
It is compatible with Allen-Bradley PLC-5 systems using the 1771 I/O chassis.

Q5. What is the response time?
It has a filtered input delay of approximately 6 milliseconds.

Q6. What are the physical dimensions?
Approximately 260 mm × 30 mm × 279 mm.

Q7. What is the weight of the module?
About 0.40 kg.

Q8. Is the 1771-IBN still manufactured?
No, it is discontinued but still widely used in existing industrial installations.

1771-IBN Allen Bradley

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