1791ES-IB8XOBV4 Allen-Bradley Guard I/O EtherNet/IP Safety Module
The Allen-Bradley 1791ES-IB8XOBV4 represents a critical component for SIL 3/Category 4 safety architectures, providing distributed I/O over EtherNet/IP. This CompactBlock Guard I/O module integrates 8 safety inputs and 4 bipolar safety outputs into a rugged, high-density form factor. Engineers deploy the 1791ES-IB8XOBV4 to monitor E-stops, light curtains, and safety gates while maintaining high-speed diagnostic feedback. For procurement or technical support, contact our team at info@oiltechcontrols.com or message us on WhatsApp: +86 158 8020 0923.
Advanced Engineering Specifications
- Safety Inputs: Eight (8) current sinking points, IEC 61131-2 Type 3 compliant.
- On-State Threshold: Minimum voltage of 11V DC and minimum current of 3.3 mA.
- Safety Outputs: Four (4) dual-channel bipolar pairs (current sourcing and sinking).
- Output Current: Rated at 2.0A max per point; 8A total module capacity at 40 °C.
- Thermal Derating: Total module current reduces to 6A when operating at 60 °C (140 °F).
- Network Interface: One (1) RJ45 Ethernet I/P port supporting CIP Safety protocols.
- Power Requirements: Consumes 250 mA at a nominal 24V DC (Range: 19.2 to 28.8V DC).
- Mechanical Footprint: Compact dimensions measuring 80 x 196 x 77 mm (3.2 x 7.7 x 3 in).
Equipment Compatibility & Application
- Seamlessly integrates with Allen-Bradley GuardLogix and SmartGuard 600 safety controllers.
- Ideal for robotic assembly lines requiring distributed safety I/O and rapid diagnostic readback.
- Compatible with muting lamps (5 mA to 25 mA range) for automated palletizing systems.
- Designed for conveyor safety systems where E-stop monitoring across long distances is required.
- Supports industrial machinery requiring locking of safety configuration for regulatory compliance.
Logistics & Service Guarantee
- Shipping Lead Time: Standard dispatch within 24-28 hours for in-stock units.
- Global Express Delivery: Reliable shipping via FedEx, UPS, and DHL.
- Warranty Protection: Standard 12-month quality assurance on all 1791ES-IB8XOBV4 units.
- Packaging Integrity: Ships in anti-static, industrial-grade protection to prevent transit damage.
- Technical Support: Direct access to engineering assistance for network configuration and I/O mapping.
Professional FAQ & Selection Guide
- How does the bipolar output pair in the 1791ES-IB8XOBV4 improve safety?
The bipolar design uses both a sourcing and sinking switch in series, ensuring the load disconnects even if one switch shorts. - Can the pulse test outputs be used for standard signaling?
Yes, these outputs are configurable for either short-circuit detection or as standard non-safety auxiliary outputs. - What is the primary advantage of the 1791ES series over the 1791DS series?
The 1791ES utilizes EtherNet/IP for easier integration into modern IT/OT infrastructures compared to the DeviceNet-based 1791DS. - Experience Tip: Why is my module showing a configuration fault after replacement?
Ensure the Safety Network Number (SNN) matches the original configuration, as safety modules require explicit ownership locking. - Buying Guide: When should I choose the IB8XOBV4 model specifically?
Choose this model when you need exactly 8 inputs and require high-current bipolar outputs (2A) for driving large safety contactors.
Author: Oiltech Controls
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