Allen-Bradley 1790-0B16X 24V DC 16-Point Sourcing Output Module

Product Overview

When a packaging line experiences intermittent output failures due to voltage drops and signal noise, the Allen-Bradley 1790-0B16X 24V DC 16-point sourcing output module provides a reliable solution. This base expansion module delivers consistent on-state voltage from 10V DC to 28.8V DC with a nominal 24V DC, ensuring stable operation even in electrically noisy environments. With its compact IP20-rated enclosure and 37-pin D-shell connector, the 1790-0B16X integrates seamlessly into DeviceNet distributed I/O networks, reducing wiring complexity and installation time.

Technical Specifications

The 1790-0B16X offers 16 nonisolated sourcing outputs, each rated at 0.5A maximum with a total of 4.0A per common. The on-state voltage drop is a maximum of 0.5V DC, and the off-state leakage current is limited to 0.5 mA maximum. Output signal delay is minimal: 0.5 ms maximum from off to on, and 1.0 ms maximum from on to off. Sixteen green status indicators provide real-time visual feedback for each output channel. The module features photocoupler isolation between I/O and logic, with an isolation voltage of 1250V AC RMS. Field power supply voltage range is 10…28.8V DC, while the base module supply voltage range is 11…28.8V DC. Power dissipation is 1.2W maximum at 28.8V DC for the base module, and 6 mA at 28.8V DC per point for field power.

Industry Applications

The 1790-0B16X is ideal for discrete manufacturing environments such as automotive assembly lines, material handling systems, and packaging machinery. Its 16-point sourcing outputs can directly drive solenoid valves, indicator lights, and small relays. The fast 0.5 ms off-to-on delay makes it suitable for high-speed pick-and-place operations. In a typical conveyor system, the module controls multiple actuator zones with a single DeviceNet connection, reducing cabinet space and wiring costs.

Installation & Setup Guidance

Mount the 1790-0B16X on a standard DIN rail within an IP20-rated enclosure. Connect the DeviceNet network via the integrated base module, and wire field devices to the 37-pin D-shell connector. Ensure the supply voltage is within the specified range: 11…28.8V DC for the base module and 10…28.8V DC for field power. Use appropriate gauge wire for 0.5A per output and 4.0A per common. Verify that the total current per common does not exceed 4.0A. The module automatically configures via DeviceNet, simplifying setup.

Maintenance & Reliability

Routine inspection of the 1790-0B16X should focus on the 37-pin D-shell connector for signs of corrosion or loose connections. Verify that the 16 green status indicators illuminate correctly during operation. The module's photocoupler isolation protects against ground loops and voltage transients, enhancing long-term reliability in industrial environments. Keep the enclosure clean and free of dust to maintain proper airflow and cooling. For complete technical specifications, please contact BluePLC Industrial.

Selection Guide & Purchasing Advice

Before ordering the 1790-0B16X, confirm your system's DeviceNet network compatibility and available power supply voltage (24V DC nominal). Verify that the 37-pin D-shell connector matches your existing wiring harness. This module is a sourcing output type, so ensure your field devices are compatible with sourcing logic. BluePLC Industrial stocks the 1790-0B16X and can provide current availability and lifecycle status. Contact our team for volume pricing and lead times.