Allen Bradley 1756-IF8I Isolated Analog Input Module

FAQ

Q1: What is the primary function of the 1756-IF8I module?
The module provides 8 individually isolated analog input channels for ControlLogix systems, supporting both voltage and current signals.

Q2: What analog signal ranges are supported?
It supports ±10V, 0–10V, 0–5V, and 0–20 mA input ranges.

Q3: What does the “I” in 1756-IF8I mean?
The “I” indicates isolated channels. Each input channel is electrically isolated to reduce noise and prevent grounding issues between field devices.

Q4: What is the module resolution and scan speed?
The module offers 24-bit resolution with a minimum scan time of 1 ms.

Q5: Which removable terminal blocks are compatible?
Compatible RTBs are 1756-TBCH and 1756-TBS6H.

Q6: What isolation protection does the module provide?
The module provides 250V continuous isolation from inputs to backplane and input-to-input isolation.

Q7: What are the dimensions and weight of the unit?
The dimensions are approximately 145 × 35 × 140 mm, with a weight of about 0.35 kg.

Q8: Is the 1756-IF8I still available?
Yes, Rockwell Automation currently lists the 1756-IF8I as an active product.

1756-IF8I Allen Bradley

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