Allen Bradley 1791DS-IB8XOB8 DeviceNet Guard I/O Block Safety Module

About the 1791DS-IB8XOB8

Allen Bradley 1791DS-IB8XOB8 DeviceNet Guard I/O Block is a safety-rated module designed for industrial automation and control applications. This DeviceNet-enabled Guard I/O block provides both input and output capabilities with integrated safety features to meet SIL 3 (Safety Integrity Level 3) and Category 4 performance levels. It is part of the Allen Bradley Guard I/O family and ensures reliable and efficient machine safety operations in hazardous environments.

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 {{40}} 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).

1791DS-IB8XOB8

The 1791DS-IB8XOB8 is a safety-rated DeviceNet Guard I/O block that monitors and controls 8 digital inputs and 8 digital outputs for safety applications.

1791DS-IB8XOB8 suitable for SIL 3 applications?

Yes, it is certified for SIL 3 (IEC 61508) and Category 4 safety requirements.

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Allen Bradley 1791DS-IB8XOB8

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