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Overview

The Allen-Bradley 1790D-T0B16 is a CompactBlock LDX I/O Base Module with a built-in DeviceNet adapter. It provides 16 non-isolated 24V DC sourcing digital outputs and supports up to 3 CompactBlock LDX expansion modules. The module uses screw-clamp connectors for reliable field wiring.

Module Specifications

• Outputs per Module: 16 points, non-isolated, sourcing

• On-State Voltage: 10V DC min, 24V DC nominal, 28.8V DC max

• On-State Voltage Drop: 0.5V DC max

• On-State Current: 1 mA min per channel

• Off-State Voltage: 28.8V DC max

• Off-State Leakage: 0.5 mA max

• Output Signal Delay: Off to On: 0.5 ms max; On to Off: 1.0 ms max

• Indicators: 16 green status LEDs

• Output Current Rating: 0.5 A max per output; 4.0 A max per common

• Common Type: 8 points / 8 COM

General Specifications

DeviceNet Power (Base Module)

• Supply Voltage: 24V DC nominal

• Voltage Range: 11–28.8V DC

• Power Dissipation: 1.2 W max @ 28.8V DC

Field Power

• Supply Voltage: 24V DC nominal

• Voltage Range: 10–28.8V DC

• Power Dissipation: 6 mA @ 28.8V DC per point

Isolation

• I/O to Logic: Photocoupler isolation

• Isolation Voltage: 1250V AC RMS

Wiring

• Terminal Block: M3.0

• Screw Torque: 7 lb-in max (use copper or copper-clad aluminum conductors)

Applications

• Industrial automation requiring compact 24V DC digital output modules.

• Systems using DeviceNet networks for communication.

• Expansion of CompactBlock LDX I/O systems with multiple modules.

Details