1791DS/ES CompactBlock Guard I/O
Guard I/O™ Modules OverviewControl 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 a proven technology, Guard I/O detects failures at the I/O and field device level, while enhancing operator protection.
CompactBlock Guard I/O modules are available in IP20 (in-cabinet) form factor. ArmorBlock Guard I/O modules are IP67 (on-machine) form factor. 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:
- Reduced engineering — Onboard, Guard I/O has self-diagnostics, hardware testing, and field circuit testing (short-circuit, wire break, discrepancy) with no additional programming required.
- Cost-reduced hardware options — Increases ability to safely shutdown an application without additional safety relays.
- Space-savings — Monitor and control more safety devices using less panel space.
- Use of existing network infrastructures — Connect to standard and safety I/O over one DeviceNet or EtherNet/IP network.
- Flexibility and easy migration to EtherNet/IP — The same Guard I/O modules for both DeviceNet and EtherNet/IP networks lets you re-use engineering designs.
- Highest safety level — TÜV-certified up to SIL 3/Category 4/Performance Level (e).
|
|
|
|
| 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, 1753-DNSI, 1752 | 1756-DNB, 1753-DNSI, 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:
- Integrated pulse test outputs for testing safety circuitry like e-stops and gate switches, for use in applications up to Category 4/Performance Level (e). These outputs can also be used independently for standard output control or voltage source to sensors.
- Safety outputs, with integrated pulse testing for use in applications up to Category 4/Performance Level (e).
- Ability to detect at each I/O point:
- short-circuit to 24V dc or 0V
- wire breakage
- discrepancy of dual channel circuitry, due to mechanical alignment or a failure
- short-circuit to 24V dc or 0V
- All Guard I/O modules have common circuit functionality, operation, programming, troubleshooting, and diagnostics.
- Built in diagnostic LEDs for I/O circuitry and power status.
- I/O point status available to any controller.
- EDS file or Logix 5000 profile compatible.
- Removable and keyed terminal blocks.
- Common power and I/O wiring across Guard I/O modules on DeviceNet and EtherNet/IP networks (1791DS-IB16/1791ES-IB16 and 1791DS-IB8XOBV4/1791ES-IB8XOBV4).
- Safety input power source separate from safety output power source.
- Removable and insertable under power, when following appropriate safety practices.
- Electronic overcurrent protection of all outputs.
Typical Configurations
|
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.
|
|
A variety of CompactBlock Guard I/O is available to suit most every need.
- 1791DS-IB8XOB8 Module. This module has up to 8 single channel safety inputs and 8 single channel safety outputs. It is often the universally chosen Guard I/O hardware for almost every application. Whether you need single or dual channel safety input or safety output circuits, the 1791DS–IB8XOB8 module is a good choice.
- 1791DS-IB4XOW4 Module. This module has up to 4 single channel safety inputs and 4 single channel (replaceable) safety relay outputs. This module is often chosen for AC actuators or specialty safety interface applications. Whether you need single or dual-channel safety input or safety output circuits, the 1791DS-IB4XOW4 module is a good choice.
- 1791DS-IB8XOBV4 or 1791ES-IB8XOBV4 Modules. These modules have up to 8 single channel safety inputs and 4 dual channel sink/source safety outputs, also know as bipolar or two-pole switching. They are often chosen for safety actuators that require more than 0.5 amps. For example, the control of press safety valves or control of the solenoid on a guard-locking switch like the Atlas or Trojan safety products. Whether you need single or dual channel safety input circuits and dual channel safety outputs, the 1791DS-IB8XOBV4 or 1791ES-IB8XOBV4 module will suit most any application.
- 1791DS-IB16 or 1791ES-IB16 Modules. These modules have up to 16 single channel safety inputs. They are the universal choice of Guard I/O hardware when an application calls for the monitoring of many safety devices in one central location. When your safety application requires 2 safety mats, 2 run stations with 2 e-stops, or any similar configuration, these modules are an excellent and economical choice for every programmable safety system.
CompactBlock™ Guard I/O™
|
|
|
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:
- The 1791DS CompactBlock Guard I/O family consists of 24V dc digital I/O modules that communicate on DeviceNet networks.
- The 1791ES CompactBlock Guard I/O family consists of 24V dc digital I/O modules that communicate on EtherNet/IP networks.
Benefits
- TÜV certified as a system with GuardLogix, GuardPLC 1600 and 1800, and SmartGuard 600 controllers
- Supports both standard and safety control
- I/O point-level and other detailed fault diagnostics are available to the PLC or HMI, with the self testing inputs and outputs
- EDS (RSNetWorx for DeviceNet) or RSLogix 5000 profile configuration
- TÜV and UL certified for functional safety up to SIL 3, Category 4, and Performance Level (e)
- Supports single and dual channel devices on inputs and outputs
- Additional standard solid-state outputs that can be configured as pulse test sources, outputs for standard PLC control, 24V dc sources, or for muting lamp control and monitoring
- DIN rail mounting for easy installation
- Compatible with Guardmaster and similar safety devices
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 @ 24V DC | 85 mA @ 24V DC | 110 mA @ 24V DC | 85 mA @ 24V DC | 110 mA @ 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 sourcing/current sinking | relay |
| 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 | — |
| Service Life, Electrical | — | — | — | — | 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°C…+60°C (-4°F…+140°F) | -10…55° C (14…131 °F) |
-20°C…+60°C (-4°F…+140°F) | -10…55° C (14…131 °F) |
| Relative Humidity | 5…95% noncondensing | 5…95% noncondensing | 10…95% noncondensing | 5…95% noncondensing | 10…85% noncondensing |
| Vibration | 5 g @ 57…150 Hz | 5 g @ 10…500 Hz | 5 g @ 57…150 Hz | 5 g @ 10…500 Hz | 5 g @ 57…150 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 Class I Div 2 Hazardous, UL NRGF, ODVA Conformance, TÜV certified for functional safety up to SIL 3, Cat. 4, PL(e) | UL, CE, C-Tick, CSA, UL NRGF, ODVA Conformance, TÜV certified for functional safety up to SIL 3, Cat. 4, PL(e) | |||
| ¬ 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 @ 24V DC | 250 mA @ 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 | 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, Cat. 4, PL(e) | 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, Cat. 4, PL(e) |
| ¬ 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. | ||