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1791DS-1B8XOB8 Allen Bradley Guard I/O Devicenet Safety module

1791DS-1B8XOB8 Allen Bradley Guard I/O Devicenet Safety module

Manufacturers ：Allen Bradley
Model(s)  ：1791DS-1B8XOB8
Additional Information ：Guard I/O Devicenet Safety module
Estimated Shipping Size
Dimensions: 263 × 58 × 28mm
Weight:.4.3 kg
Country of Origin: United States of America

 

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Categories: , SKU: 1791DS-1B8XOB8

Description

Overview

Essential details：1791DS-1B8XOB8 Allen Bradley Guard I/O Devicenet Safety module

The Guard I/O DeviceNet Safety Module with catalog number 1791DS-IB8XOB8 is a safety output module with solid state outputs. This module has embedded I/O modules such as Eight (8) Safety Input, Eight (8) Solid State outputs and Four (4) Test Outputs.

The 1791DC-IB8XOB8 module comes with an enclosure with Ingress Protection (IP) 20 rating. It can be used in applications that require Safety Integrity Level (SIL) 3. It complies with the IEC 61508 standard, and Safety Category 4 as specified in the EN 954-1.

The safety inputs are designed for Sink wiring configuration with minimum On state voltage of 11VDC and input current of 6 mA. The Test output channels support sourcing configuration with rated output current of 0.7A with maximum residual voltage of 1.2V and maximum leakage current of 0.1 mA. The Safety outputs supports sourcing wiring as well, with rated output current of 0.5A, maximum residual voltage of 1.2V and maximum leakage current of 0.1 mA.

1791DS-1B8XOB8

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1791DS-1B8XOB8 Allen Bradley Guard I/O Devicenet Safety module

The 1791DC-IB8XOB8 has built-in Self-diagnostic functions and configuration lock feature. The module’s integrated I/O status data provide information regarding Individual Point Input Status, Combined Input Status, Individual Point Output Status, Combined Output Status, Individual Test Output Status, and Individual Output Readback (actual ON/OFF state of the outputs).

The Allen-Bradley 1791DS-IB8XOB8 CompactBlock is a DeviceNet guard combination module with a 20.4 to 26.4 Volts DC I/O power supply voltage (with a nominal voltage of 24 Volts DC), an 11 to 25 Volts DC communications power supply voltage and a 110-mA current consumption of at 24 Volts DC.

This module has 8 safety inputs, 4 test outputs, and 8 solid-state safety outputs, along with individual status indicators installed. The inputs of this module are current sinking input type with an input current of 6 Amps and a maximum off-state current of 1 mA. The 1791DS-IB8XOB8’s on-state minimum input voltage is 11 Volts DC. The 1791DS-IB8XOB8&s maximum off-state input voltage is 5 Volts DC. The current sourcing test outputs of this module come with a 0.1 mA maximum leakage current, a 0.7 Amps rated output current, and a 1.2 Volts maximum residual voltage. On the other hand, the current sourcing safety outputs of the of the 1791DS-IB8XOB8 module have the same maximum leakage current of 0.1 mA, the same residual voltage of 1.2 Volts at maximum, and a rated output current of 0.5 Amps.

The Allen-Bradley 1791DS-IB8XOB8 is a guard I/O module that implements DeviceNet safety protocol. It has an operational temperature between -10 and 55 degrees Celsius (14 and 131 degrees Fahrenheit) and is stored and shipped at a temperature range between -40 and 70 degrees Celsius (-40 and 158 degrees Fahrenheit) at a surrounding 5 to 95% non-condensing relative humidity. It has a vibration rating of 5G at 10 to 500 Hertz with 0.35 millimeters and a maximum operational shock rating of 15G. The 1791DS-IB8XOB8 module has a weight of 420 g (0.93 pounds) and dimensions of 80 millimeters x 196 millimeters x 77 millimeters (3.2 inches x 7.7 inches x 3 inches).

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