Allen-Bradley 1791ES-IB8XOBV4 Guard I/O Ethernet Safety Module

Allen-Bradley 1791ES-IB8XOBV4 Guard I/O EtherNet/IP Safety Module

Key Technical Specifications

• Brand: Allen-Bradley
• Model: 1791ES-IB8XOBV4
• Product Family: CompactBlock Guard I/O
• Safety Inputs: Eight (8) current-sinking, IEC 61131-2 Type 3
• On-State Input Voltage: 11 VDC minimum
• On-State Input Current: 3.3 mA minimum
• Safety Outputs: Four (4) dual-channel, bipolar (sourcing/sinking pair)
• Output Current: 2 A max per point
• Total Module Current: 8 A @ 40°C, 6 A @ 60°C
• Operating Voltage: 19.2 – 28.8 VDC
• Power Consumption: 250 mA @ 24 VDC
• Short-Circuit Protection: Electronic, with fault detection
• Network Port: One (1) EtherNet/IP (RJ45) connection
• IP Address Configuration: Rotary switches, BOOTP/DHCP, or non-volatile memory

Advanced Diagnostic & Monitoring Features

• The module performs self-diagnostics to ensure continuous safe operation.
• It provides real-time I/O status feedback for comprehensive circuit monitoring.
• Operators can check individual and combined statuses for both inputs and outputs.
• The system monitors test output status and the actual ON/OFF state of each output.
• Separate pulse test outputs identify wiring shorts and can act as standard outputs.

Output Performance Details

• Pulse test outputs have a maximum leakage current of 0.1 mA.
• They maintain a maximum residual voltage of 1.2 Volts.
• When controlling a muting lamp, the output current ranges from 5 mA to 25 mA.
• The bipolar output pairs have an on-state voltage drop of ±0.6 Volts.
• Their leakage current remains within ±1 mA for precise control.

Frequently Asked Questions (FAQ)

• Q: Is the Allen-Bradley 1791ES-IB8XOBV4 module new and original?
  A: Yes, we supply only 100% brand new and original Allen-Bradley products.
• Q: What safety level does this module support?
  A: The 1791ES-IB8XOBV4 is designed for applications requiring up to Safety Integrity Level (SIL) Category Level 3.
• Q: How many inputs and outputs does it have?
  A: It provides 8 safety inputs and 4 dual-channel safety outputs.
• Q: What is the total output current capacity?
  A: The total module current is 8 A at 40°C and 6 A at 60°C, with derating.
• Q: How do you set the IP address?
  A: You can set it using the front rotary switches, a BOOTP/DHCP server, or from stored memory.
• Q: Do you have this module in stock?
  A: Yes, we maintain stock for fast shipping, typically within 5 business days.
• Q: What shipping methods do you use?
  A: We ship worldwide via major carriers like DHL, FedEx, and UPS.
• Q: What is your return policy?
  A: We offer a 30-day return policy for unused items in original packaging.

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