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

Product Overview: Allen-Bradley 1791DS-IB8XOB8 Guard I/O Module

Core Technical Specifications

• Brand: Allen-Bradley
• Model Number: 1791DS-IB8XOB8
• I/O Power Supply: Requires 20.4 to 26.4V DC, with a nominal 24V DC.
• Communications Power: Operates on 11 to 25V DC, supplied via the DeviceNet network.
• Current Consumption: Draws approximately 110 mA at 24V DC.
• Safety Inputs: 8 sinking-type inputs with a minimum ON-state voltage of 11V DC.
• Safety Outputs: 8 solid-state, sourcing outputs, each rated for 0.5A.
• Test Outputs: 4 additional sourcing outputs with a 0.7A rating.

Performance & Environmental Ratings

• Safety Certification: Complies with IEC 61508, suitable for SIL 3 applications.
• Operating Temperature: Functions reliably from -40 to 70 °C (-40 to 158 °F).
• Enclosure Rating: Features an IP20 rating for basic protection against particulates.
• Vibration Resistance: Withstands 5G vibration from 10 to 500 Hz.
• Shock Resistance: Rated for operational shocks up to 15G.
• Wiring: Accepts standard copper wire from 0.2 to 2.5 mm² (AWG 24-12).

Diagnostics & Monitoring

• The module includes powerful built-in self-diagnostic functions.
• An integrated configuration lock feature enhances security.
• LED status indicators provide clear visibility for each I/O point.
• The system offers detailed data on input, output, and test point status.

Frequently Asked Questions (FAQ)

• Q: Is the 1791DS-IB8XOB8 module brand new?
  A: Yes, we supply only brand new and original Allen-Bradley products.
• Q: How many safety outputs does this Guard I/O module have?
  A: It provides eight (8) solid-state safety outputs, each capable of sourcing 0.5A.
• Q: What is the operating voltage range for the inputs?
  A: The safety inputs recognize a signal as ON at a minimum of 11V DC.
• Q: Can this module be used in a SIL 3 safety system?
  A: Absolutely. The module is designed and certified for applications requiring up to SIL 3.
• Q: What is your shipping and returns policy?
  A: We ship worldwide via DHL/FedEx/UPS within 5 days and offer a 30-day return policy.

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