1790-0B16X Allen-Bradley | Output Module

Allen-Bradley 1790-0B16X 24V DC Output Module

Core Technical Specifications

• Brand & Model: Allen-Bradley 1790-0B16X
• Module Type: DeviceNet Base & Expansion Block, Distributed I/O
• Output Configuration: 16 Sourcing Output Points, Non-isolated
• Operating Voltage: 24V DC Nominal (Range: 10V - 28.8V DC Field Power)
• Output Current Capacity: 0.5A maximum per output channel
• Total Common Current: 4.0A maximum per common (8 points/COM)
• Voltage Drop: 0.5V DC maximum in On-state
• Switching Speed: Off to On: 0.5 ms max, On to Off: 1.0 ms max
• Connection Interface: 37-pin D-shell Connector
• Protection Rating: IP20 for basic ingress protection
• Status Indication: 16 Green LEDs for individual output status
• Isolation: Photocoupler isolation (I/O to logic), 1250V AC RMS
• Power Consumption: 1.2W maximum @ 28.8V DC (DeviceNet power)
• Leakage Current: 0.5 mA maximum in Off-state
• Minimum Load: 1 mA per channel required for stable operation

Frequently Asked Questions (FAQ)

• Q: Is this a base module or an expansion module?
  A: The 1790-0B16X can function as both a DeviceNet base module and an expansion block for distributed I/O systems.
• Q: What is the output type and voltage?
  A: It provides 16 sourcing outputs operating at a nominal 24V DC.
• Q: What is the maximum current per output?
  A: Each output can handle a continuous load up to 0.5 Amps maximum.
• Q: What type of connector does it use?
  A: It features a standard industrial 37-pin D-shell connector for wiring.
• Q: What is the IP rating of this module?
  A: The module has an IP20 rating, protecting against finger contact but not against water.
• Q: How fast can the outputs switch?
  A: Outputs switch on in under 0.5 milliseconds and off in under 1.0 millisecond maximum.
• Q: Is there electrical isolation?
  A: Yes, it features photocoupler isolation (1250V AC) between the I/O circuits and the logic.

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