Allen-Bradley 1794-IF4I Analog Input Module

FAQ

Q1. What is the main function of the 1794-IF4I?
It is a FLEX I/O isolated analog input module used to measure analog signals with electrical isolation between channels and system logic.

Q2. How many input channels does it provide?
It provides 4 fully isolated analog input channels.

Q3. What signal types are supported?
It supports voltage (0–10 V, ±10 V) and current (0–20 mA, 4–20 mA) signals.

Q4. What is the benefit of isolation in this module?
Isolation reduces electrical noise and protects the control system from ground loops and field-side faults.

Q5. What is the resolution of the module?
It provides 12-bit resolution for unipolar and 11-bit for bipolar signals.

Q6. What is the conversion speed?
Each channel updates in approximately 256 microseconds.

Q7. What are its physical size and weight?
It measures approximately 9.4 × 9.4 × 5.3 cm and weighs about 0.20 kg.

Q8. What applications is it typically used for?
It is used in industrial automation systems where isolated analog signal measurement is required, such as in process control, instrumentation, and environments with electrical noise or long signal runs.

1794-IF4I Allen Bradley

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