Allen Bradley 1771-IFF PLC Analog Input Module

FAQ

Q1. What is the 1771-IFF used for?
It is used to convert high-resolution analog signals from field devices into digital data for PLC processing.

Q2. How many input channels does it have?
It provides 8 analog input channels.

Q3. What signal types does it support?
It supports 0–10 V DC and 4–20 mA DC analog inputs.

Q4. What is the difference between 1771-IFE and 1771-IFF?
The 1771-IFF generally provides higher resolution (16-bit class) and faster conversion performance compared to the 1771-IFE.

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 conversion speed?
Approximately 8–16 ms per channel depending on configuration.

Q7. What are the physical dimensions?
Approximately 178 mm × 102 mm × 279 mm.

Q8. What is the weight of the module?
Approximately 1.1 kg (about 2.4 lbs).

1771-IFF Allen Bradley

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