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Allen-Bradley Hardware Product

CompactBlock Guard Safety I/O Modules

  • Main Image
Main Image

Our Bulletin 1791DS and 1791ES CompactBlock™ Guard I/O™ modules provide the advantages of distributed I/O for safety systems. These modules work with safety controllers that communicate on DeviceNet™ or EtherNet/IP™ networks using CIP™ Safety. CompactBlock Guard Safety I/O is optimized to work with GuardLogix®, and SmartGuard™ controllers.

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CompactBlock Guard I/O Packaged Solutions
1791 CompactBlock Guard Safety I/O
  • Overview
  • Product Selection
  • Documentation

Overview

  • Includes TÜV certification as a system with GuardLogix® and SmartGuard™ 600 controllers
  • Supports both standard and safety control
  • Includes 24V DC I/O circuits with built-in power supply
  • Offers point-level diagnostics for troubleshooting of all input and output circuits
  • Includes removal and insertion under power (RIUP), when following appropriate safety practices
  • Offers DIN-rail mounting and removable terminals for easy installation and maintenance
  • Includes common power and I/O wiring
  • Offers additional standard solid-state outputs for any unused safety inputs
  • Compatible with Allen‑Bradley® Guardmaster® safety devices

1791ES CompactBlock Guard I/O 2-Channel Encoder Feedback Module

  • Compatible with GuardLogix 5580 and Compact GuardLogix 5380 controller
  • Supports Incremental and Absolute Encoder Feedback such as Sine/Cosine, AqB, SSI directly into the Safety Task
  • Supports for programming of dynamic direction, position, and velocity setpoints
  • Rated for single and dual Channel configurations
  • Includes two RJ45 ports for fault-tolerant EtherNet/IP based network topologies such as Linear and Device Level Ring Topologies
1791DS CompactBlock™ Guard I/O™ for DeviceNet
  • Compatible with safety controllers that communicate on DeviceNet™ using CIP™ Safety
  • Includes 4…16 single-channel safety inputs and 4…16 standard pulse test outputs
  • Some blocks include four or eight safety solid-state outputs, single- or dual-channel or four single-channel safety relay outputs

1791ES CompactBlock Guard I/O for EtherNet/IP

  • Compatible with safety controllers that communicate on EtherNet/IP™ using CIP Safety
  • Includes single- or dual-channel safety inputs (16 single/8 dual or 8 single/4 dual) and 8 or 16 standard pulse test outputs
  • Some blocks include four dual-channel safety outputs

Additional Information

Protect your people, productivity, and environment with our Safety Components

and integrated Safety Solutions
. We understand your factory floor challenges and can help you meet your goals with one of the broadest safety portfolios in the industry.


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Documentation

Resource Publication Number Language
CompactBlock Guard I/O on DeviceNet Safety Modules Installation Instructions 1791DS-IN002
CompactBlock Guard I/O on EtherNet/IP Safety Modules Installation Instructions 1791ES-IN001
English
CompactBlock Guard I/O on DeviceNet Safety Modules User Manual 1791DS-UM001
English
CompactBlock Guard I/O on EtherNet/IP Safety Modules User Manual 1791ES-UM001
English
CompactBlock Guard I/O 2-Channel Incremental Synchronous Serial Interface Encoder Module User Manual 1791ES-UM002
English
CompactBlock Guard I/O 2-Channel Incremental Encoder Synchronous Serial Interface Module 1791ES-IN002A
English

Certifications

CSA MarkCanadian Standards Association Mark
C-TICK CertificationC-TICK Certification
UL Marked Component Mark Canadian and United States RequirementsUL Marked Component Mark Canadian and United States Requirements
DeviceNetDeviceNet
EtherNet/IPEtherNet/IP
UL MarkedUL Marked

DeviceNet Blocks

  • UL Listed
  • CE Marked
  • C-Tick
  • CSA
  • UL Class I Div 2 Hazardous
  • UL NRGF
  • ODVA Conformance
  • TÜV certified for functional safety up to SIL 3, Cat. 4, PLe

EtherNet/IP Blocks

  • cULus
  • CE Marked
  • C-Tick
  • CSA
  • UL Class I Div 2 Hazardous
  • UL NRGF
  • EtherNet/IP
  • TÜV and UL certified for functional safety up to SIL 3, Cat. 4, PLe

EtherNet/IP Encoder Feedback Module

  • EtherNet/IP Encoder Feedback Module
  • cULus
  • CE Marked
  • RCM
  • KCC
  • UL NRAQ/NRAQ7
  • EtherNet/IP
  • TÜV and UL certified for functional safety up to SIL 3, Cat. 4, PLe

CompactBlock Guard I/O modules are available in IP20 (in-cabinet) form factor.

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details. 

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