Allen-Bradley 1791ES-IB16 Safety Module | 16 Inputs

Product Introduction: Allen-Bradley 1791ES-IB16 EtherNet/IP Safety Module

Core Technical Specifications

• Brand: Allen-Bradley 
• Model Number: 1791ES-IB16
• Product Line: Guard I/O 1791ES Series
• Input Channels: 16 current-sinking safety inputs (IEC 61131-2 Type 3).
• On-State Voltage: 11V DC minimum.
• Off-State Voltage: 5V DC maximum.
• Pulse Test Outputs: 16 sourcing outputs for device testing.
• Test Output Current: 0.7A per point; 8A total module at 60°C.
• Operating Voltage: 19.2 to 28.8V DC.
• Power Consumption: 250 mA at 24V DC.

Safety Ratings & Environmental Data

• Safety Standards: Complies with IEC 61508 (SIL CL 3) and ISO 13849-1 (CAT 4, PLe).
• Enclosure Rating: IP54 and higher, offering good dust and water splatter protection.
• Isolation Rating: 50V continuous; tested at 800V DC for 60 seconds.
• Operating Temperature: Rated for performance up to 60°C (140°F).
• Communication: One RJ45 port for EtherNet/IP with CIP Safety protocol.
• Short-Circuit Protection: Yes, on all pulse test outputs.

Input & Output Performance Details

• Input Current (On): Minimum 3.3 mA to ensure a valid ON signal.
• Input Current (Off): Maximum leakage of 1.3 mA.
• Output Residual Voltage: Maximum of 1.2V DC on test outputs.
• Output Leakage: Very low, with a maximum of 0.1 mA.
• Internal Resistance: Approximately 3.25 kΩ for input circuits.
• Dual-Channel Mode: Evaluates two signals for CAT 3/4 safety applications.
• Single-Channel Mode: Supports one signal for CAT 2 / PLd applications.

Installation & Wiring Guidelines

• Mount the module on a DIN rail within a suitable control panel.
• Ensure the ambient temperature stays within the specified range.
• Use recommended copper wire: 0.34 to 1.5 mm² (22-16 AWG).
• Wire insulation should be rated for 75°C (167°F) or higher.
• Connect the 24V DC power within the 19.2-28.8V DC range.
• Link to the network via the integrated RJ45 Ethernet port.
• The 1791ES-IB16 is designed for use with safety controllers.

Packaging & Shipping Information

• Package Contents: One (1) new, original 1791ES-IB16 safety module.
• Product Weight: Approximately 0.94 lbs (0.43 kg).
• Dimensions: 80 x 196 x 77 mm (3.2" x 7.7" x 3.0").
• Shipping Method: We ship via reliable carriers like DHL, FedEx, or UPS.
• Stock Status: This Allen-Bradley Guard I/O module is available from stock.
• Dispatch Time: Orders are processed and shipped within 3-5 business days.

Frequently Asked Questions (FAQ)

• Q: Does the 1791ES-IB16 have any safety outputs?
  A: It has 16 pulse test outputs for device verification, but no dedicated safety control outputs. It works with a separate safety controller.
• Q: What safety devices can I connect to it?
  A: It is compatible with emergency stop buttons, safety gate switches, light curtains, and other two-channel safety devices.
• Q: What is the difference between dual-channel and single-channel mode?
  A: Dual-channel mode uses two signals for higher safety (CAT 4). Single-channel uses one signal for basic safety (CAT 2).
• Q: What is your returns policy?
  A: We offer a 30-day return policy for items in unused condition with original packaging.

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