Allen Bradley 1771-IBN/C PLC Digital Input Module

FAQ

Q1. What is the 1771-IBN/C used for?
It is used to interface 10–30 V DC digital signals from field devices into a PLC-5 system.

Q2. How many input points does it support?
It provides 32 discrete DC input channels.

Q3. What voltage range is supported?
It supports 10–30 V DC input signals.

Q4. What is the difference between 1771-IBN and 1771-IBN/C?
The “/C” indicates a revision level with minor internal improvements and updated manufacturing changes, while maintaining functional compatibility.

Q5. What PLC system is it designed for?
It is designed for Allen-Bradley PLC-5 systems using the 1771 I/O chassis.

Q6. What is the response time of the module?
It has a typical input delay of about 6 milliseconds.

Q7. What are the physical dimensions?
Approximately 178 mm × 41 mm × 279 mm.

Q8. What is the weight of the module?
About 0.41 kg.

1771-IBN/C Allen Bradley

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