Allen-Bradley 1791DS-IB8XOB8 Safety Combination I/O Module

FAQ

Q1. What is the main function of the 1791DS-IB8XOB8?
It is a DeviceNet safety I/O module used to integrate safety signals such as emergency stops, safety switches, and interlocks.

Q2. How many safety inputs and outputs does it have?
It provides 8 safety inputs and 8 safety outputs, plus 4 test outputs.

Q3. What is the purpose of the test outputs?
They generate pulse signals to detect wiring faults such as shorts or cross-circuits in safety input devices.

Q4. What safety standards does it support?
It supports SIL 3 functional safety and Category 4 compliance under IEC/EN safety standards.

Q5. What network does it use?
It communicates through DeviceNet Safety, designed for industrial safety-rated networks.

Q6. What is the operating voltage range?
It operates at 20.4 to 26.4 VDC for I/O power, with nominal 24 VDC.

Q7. What are the physical size and weight?
It measures approximately 80 × 196 × 77 mm and weighs around 0.40 kg.

Q8. What applications is it typically used for?
It is used in safety-critical automation systems such as robotic cells, presses, and machinery requiring SIL 3 protection.

1791DS-IB8XOB8 Allen Bradley

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