1791DS/ES CompactBlock Guard I/O

Guard I/O Modules Overview

Control and monitor your safety devices with Guard I/O. When used with Rockwell Automation safety controllers, Guard I/O communicates on EtherNet/IP or DeviceNet using CIP Safety protocol. As an effective technology, Guard I/O detects failures at the I/O and field device level, while helping enhance operator protection.

CompactBlock Guard I/O modules are available in IP20 (in-cabinet) form factor. ArmorBlock Guard I/O modules are IP64, IP65, or IP67 (on-machine) form factor (as marked on the product label). POINT Guard I/O provides maximum I/O density in minimal panel space.


Guard I/O modules offer the following advantages when implementing a safety control system:


  Click to enlarge - CompactBlockIO_stacked Click to enlarge - 1732DSArmorBlock Guard IO 4C Click to enlarge - 1734POINTGuardIO_front
  CompactBlock Guard I/O Modules ArmorBlock Guard I/O Modules POINT Guard I/O Modules
Description Cost-effective block I/O for use in an enclosure. Cost-effective block I/O with IP67 protection for use on the machine. Cost-effective I/O modules provide maximum I/O density in minimum panel space.
Digital Safety Inputs Up to 16 channels Up to 8 channels Up to 8 channels
Digital Safety Outputs Up to 8 channels Up to 4 channels Up to 8 channels
Safety Relays Up to 4 channels No No
High Current Capacity Outputs Up to 2 amps per channel Up to 2 amps per channel Up to 1 amp per channel
Use in Hazardous Areas UL Listed for Class I, Division 2 Group A,B,C,D No UL Listed for Class I, Division 2 Group A,B,C,D; ATEX
DeviceNet
Interface Module 1756-DNB, 1752 1756-DNB, 1752 1734-PDN
Bulletin Number 1791DS 1732DS 1734
EtherNet/IP
Interface Module 1756-ENBT, 1756-EN2T, 1756-EN2F Not available 1734-AENT, 1734-AENTR
Bulletin Number 1791ES Not available 1734

Common Guard I/O Module features:


Typical Configurations

Click to enlarge - 1732DS ArmorBlock Guard IO Safety Configuration


The above example network shows how almost any 24V DC safety-rated or standard sensor can be wired to any Guard I/O module to monitor the machine’s status.

Choosing Your I/O Hardware

Guard I/O module options are available to minimize associated safety hardware. Additionally, installation costs, wiring time, and commissioning time can be further reduced when using ArmorBlock Guard I/O, as shown in the example below with a light curtain muting application.

Click to enlarge - ArmorBlockwEstops Click to enlarge - Four Sensor Muting with GuardIO

A variety of CompactBlock Guard I/O is available to suit most every need.


CompactBlock™ Guard I/O™

Click to enlarge - CompactBlockIO_stacked Click to enlarge - 1791ES-IB8XOBV4_2B

Description

CompactBlock Guard I/O provides all the advantages of traditional distributed I/O for safety systems. Distributed safety I/O reduces wiring costs and startup time for machines and cells, as compared to in-chassis I/O. You can use Guard I/O with any safety controller that communicates on DeviceNet or EtherNet/IP networks using CIP Safety, for the control and monitoring of safety circuits. Guard I/O detects circuit failures at each I/O point while providing detailed diagnostics directly to the controller. With CIP Safety you can easily integrate safety and standard control systems by using safety and standard messages on the same wire.

Several Guard I/O blocks are available with a variety of features:


Benefits


Specifications

CompactBlock Guard I/O DeviceNet Safety Module Specifications

Cat. No. 1791DS-IB12 1791DS-IB16 1791DS-IB8XOB8 1791DS-IB8XOBV4 1791DS-IB4XOW4
Description 24V DC Input Module on DeviceNet Networks 24V DC Input Module on DeviceNet Networks 24V DC Input/Solid-State Output Module on DeviceNet Networks 24V DC Input/Output Module on DeviceNet Networks 24V DC Input / Relay Output Module for DeviceNet Networks
Current Consumption 110 mA at 24V DC 85 mA at 24V DC 110 mA at 24V DC 85 mA at 24V DC 110 mA at 24V DC
Operating Voltage Range 20.4…26.4V DC (24V DC, -15…+10%) 19.2…28.8V DC (24V DC, -20…+20%) 20.4…26.4V DC (24V DC, -15…+10%) 19.2…28.8V DC (24V DC, -20…+20%) 20.4…26.4V DC (24V DC, -15…+10%)
Digital Inputs
Number of Inputs (single-channel) 12 safety 16 safety 8 safety 8 safety 4 safety
Input Type current sinking current sinking current sinking current sinking current sinking
Voltage, On-State Input, Min. 11 V DC 11 V DC 11 V DC 11V DC 11V DC
Voltage, Off-State Input, Max. 5V DC 5V DC 5V DC 5V DC 5V DC
Current, On-State Input, Min. 6 mA 3.3 mA 6 mA 3.3 mA 6 mA
Digital Outputs
Number of Outputs 8 single-channel, safety solid-state 4 dual channel, safety solid-state 4 single-channel, safety relay
Output Type Current sourcing Current sinking/Current sourcing Relay Output
Output Current Rating 0.5 A per point 2.0 A continuous 2 A max. per contact
Output Leakage Current, Max. 0.1 mA ± 1.0 mA
Electrical Service Life 100,000 operations min
Short Circuit Protection Yes Yes No
Standard Pulse Test Outputs
Number of Pulse Test Sources 4 16 4 8 4
Pulse Test Output Current 0.7 A per point 0.7 A per point 0.7 A per point 0.7 A per point 0.7 A per point
Short Circuit Protection Yes Yes Yes Yes Yes
General
Operating Temperature -10…55° C (14…131 °F)
-20…60 °C (-4…140 °F) -10…55° C (14…131 °F)
-20…60 °C (-4…140 °F) -10…55° C (14…131 °F)
Relative Humidity 10…95% noncondensing 5…95% noncondensing 10…95% noncondensing 5…95% noncondensing 10…85% noncondensing
Vibration 5 g at 10…500 Hz 5 g at 10…500 Hz 5 g at 10…500 Hz 5 g at 10…500 Hz 5 g at 10…500 Hz
Operating Shock 15 g 30 g 15 g 30 g 10 g
Enclosure Protection IP20 IP20 IP20 IP20 IP20
Dimensions (HxWxD), Metric 68 x 170 x 72 mm⋆  81 x 170 x 76 mm⋆  68 x 170 x 72 mm⋆  81 x 170 x 76 mm⋆  95 x 170 x 83 mm⋆ 
Certifications§  UL, CE, C-Tick, CSA, UL NRGF, ODVA Conformance, certified by TÜV for Functional Safety up to SIL 3 and Cat. 4, PLe UL, CE, C-Tick, CSA, UL NRGF, ODVA Conformance, certified by TÜV for Functional Safety up to SIL 3 and Cat. 4, PLe
  
⋆  Includes DIN latch and connectors.
§ When product is marked. See the Product Certification link at http://www.ab.com/certification for Declarations of Conformity, Certificates, and other certification details.
All specifications are subject to change. Refer to product installations instructions.

CompactBlock Guard I/O EtherNet/IP Safety Module Specifications

Cat. No. 1791ES-IB16 1791ES-IB8XOBV4
Description 24V DC Input Module on EtherNet/IP 24V DC Input/Output Module on EtherNet/IP
Current Consumption 250 mA at 24V DC 250 mA at 24V DC
Operating Voltage Range 19.2…28.8V DC (24V DC, -20…+20%) 19.2…28.8V DC (24V DC, -20…+20%)
Digital Inputs
Number of Inputs 16 single channel; 8 dual channel 8 single channel; 4 dual channel
Input Type current sinking current sinking
Voltage, On-State Input, Min. 11 V DC 11 V DC
Voltage, Off-State Input, Max. 5V DC 5V DC
Current, On-State Input, Min. 3.3 mA 3.3 mA
Digital Outputs
Number of Outputs 0 4 dual channel
Output Type Current sourcing/current sinking - bipolar pair
Output Current Rating 2.0 A continuous
Short Circuit Protection Yes
Standard Pulse Test Outputs
Number of Pulse Test Sources 16 current sourcing 8 current sourcing
Pulse Test Output Current 0.7 A per point 0.7 A per point
Short Circuit Protection Yes Yes
General
Operating Temperature -20…60 °C (-4…140 °F) -20…60 °C (-4…140 °F)
Relative Humidity 5…95% noncondensing 5…95% noncondensing
Vibration 5 g at 10…500 Hz 5 g at 10…500 Hz
Operating Shock 30 g 30 g
Enclosure Protection IP20 IP20
Dimensions (HxWxD), Metric 80 x 196 x 77 mm⋆  80 x 196 x 77 mm⋆ 
Certifications§  cULus, CE, C-Tick, CSA, UL Class I Div 2 Hazardous, UL NRGF, ODVA Conformance, TÜV and UL certified for functional safety up to SIL 3 and Cat. 4, PLe cULus, CE, C-Tick, CSA, UL Class I Div 2 Hazardous, UL NRGF, ODVA Conformance, TÜV and UL certified for functional safety up to SIL 3 and Cat. 4, PLe
  
⋆  Includes terminal block.
§  When product is marked. See the Product Certification link at http://www.ab.com/certification for Declarations of Conformity, Certificates, and other certification details.
All specifications are subject to change. Refer to product installations instructions.