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Allen-Bradley 1791ES-IB8XOBV4 Safety Input/Output Module

Allen-Bradley 1791ES-IB8XOBV4 Safety Input/Output Module

Series#: AllenBradley

Product Details

1791ES-IB8XOBV4 – Allen-Bradley CompactBlock Guard I/O Safety Module with 8 Inputs and 4 Outputs.
Integrated Ethernet/IP interface for seamless safety and standard control integration.
Compact, rugged design ideal for distributed I/O in hazardous or space-constrained environments.
Supports SIL 3 / Category 4 safety applications per IEC 61508 and EN ISO 13849-1.
Simplified wiring with field-replaceable terminal blocks and diagnostic LEDs for rapid troubleshooting.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

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Specification

Datasheet (PDF)

The 1791ES-IB8XOBV4 from Allen-Bradley is a high-performance safety input/output module designed for the CompactBlock Guard I/O platform. It combines 8 safety-rated inputs (sink/source configurable) with 4 solid-state outputs, all housed in a robust, IP20-rated enclosure. This module communicates directly via EtherNet/IP, enabling real-time safety data exchange with GuardLogix controllers or other safety PLCs. It supports up to SIL 3 (IEC 61508) and Category 4 (EN ISO 13849-1) applications, making it suitable for machine guarding, emergency stops, and light curtains in industries like automotive, packaging, and material handling. The unit features hot-swappable terminal blocks and color-coded wiring for quick installation and maintenance. Below are the detailed technical specifications:

Parameter	Specification
Product Type	Safety Input/Output Module – CompactBlock Guard I/O
Model Number	1791ES-IB8XOBV4
Input Channels	8 (sink/source configurable, safety-rated)
Input Voltage	24V DC (nominal), 15-28.8V DC range
Input Current per Channel	6 mA typical at 24V DC
Output Channels	4 (solid-state, safety-rated)
Output Voltage	24V DC (nominal), 15-28.8V DC range
Output Current per Channel	0.5 A max, continuous
Total Output Current (all channels)	2 A max
Safety Integrity Level	SIL 3 (IEC 61508), Category 4 (EN ISO 13849-1)
Communication Protocol	EtherNet/IP (CIP Safety)
Data Rate	100 Mbps (full duplex)
Power Supply Voltage	24V DC (nominal), 19.2-28.8V DC range
Power Consumption	4.5 W typical (excluding I/O load)
Isolation Voltage	500V DC (input to backplane)
Operating Temperature	0°C to +60°C (32°F to 140°F)
Storage Temperature	-40°C to +85°C (-40°F to 185°F)
Relative Humidity	5% to 95% non-condensing
Enclosure Rating	IP20 (NEMA Type 1)
Mounting	DIN rail (35 mm) or panel mount
Terminal Type	Pluggable, field-replaceable screw terminals
Wire Size	14-22 AWG (stranded or solid)
Dimensions (H x W x D)	87 mm x 45 mm x 75 mm (3.43 in x 1.77 in x 2.95 in)
Weight	0.25 kg (0.55 lbs)
Certifications	CE, UL, CSA, ATEX (Zone 2), IECEx, TÜV Rheinland
LED Indicators	Power, Network Status, I/O Status, Fault per channel
Diagnostics	Short-circuit, open-wire, over-temperature, communication loss
Compatible Controllers	GuardLogix 5570/5580, CompactLogix 5370/5380, ControlLogix with safety partner
Application Environment	Industrial, indoor, non-hazardous (unless ATEX rated)