Allen-Bradley 1790-T16BV0X 24V DC 16 Universal Input Base Module

Product Introduction

When building or expanding a DeviceNet-based automation system, the Allen-Bradley 1790-T16BV0X provides a reliable 24V DC base module with 16 universal inputs. Designed for both sinking and sourcing field devices, this module offers flexibility to match your existing wiring and sensor types. Part of the 1790 series, it integrates seamlessly with Allen-Bradley controllers and remote I/O racks, simplifying installation and reducing wiring complexity.

Technical Specifications Breakdown

The 1790-T16BV0X features 16 input points arranged in two commons of 8 points each (8 points/8COM, non-polarity). Each input accepts 24V DC nominal (range 11 to 28.8V DC) with an on-state voltage threshold of 9.6V DC minimum and off-state voltage of 5.0V DC maximum. Maximum on-state current per channel is 8 mA at 28.8V DC. Input impedance is 4.8 kΩ nominal. Sixteen green LEDs indicate input status. Isolation between I/O and logic is provided via photocoupler, rated at 1250V AC RMS. DeviceNet power and logic are nonisolated from each other. The base module dissipates up to 1.2 W at 28.8V DC.

Industry Applications

In discrete manufacturing, the 1790-T16BV0X monitors limit switches, proximity sensors, and pushbuttons on assembly lines. Its 16-point density suits machine control panels where space is limited. In material handling systems, the sinking/sourcing flexibility allows direct connection to both NPN and PNP sensors without external interface modules. For packaging equipment, the 8-point common grouping simplifies wiring for grouped sensors on a single conveyor section.

Installation & Setup Guidance

Mount the 1790-T16BV0X on a DIN rail or panel using the integrated mounting slots. Connect DeviceNet power and communication via the built-in DeviceNet interface. Wire field inputs to the terminal block using M3.0 screws; tighten to 7 lb-in maximum torque. Use copper or copper-clad aluminum conductors rated for the application. Ensure supply voltage stays within 11 to 28.8V DC. Configure the module's node address and baud rate via the DeviceNet network or onboard switches (if present). Verify input status using the green LEDs during commissioning.

Maintenance & Reliability

Periodically inspect the terminal block connections for tightness and signs of corrosion. Clean the module enclosure with a dry cloth; avoid solvents. The photocoupler isolation protects the logic side from transient voltages, enhancing long-term reliability. Monitor the green input LEDs for quick diagnostics. If an input fails, check the field device and wiring before replacing the module. The 1790-T16BV0X operates reliably in industrial environments with proper enclosure protection.

Selection Guide & Purchasing Advice

Before purchasing the Allen-Bradley 1790-T16BV0X, confirm your system voltage is 24V DC and that your DeviceNet network can accommodate the module's power requirements. Verify the number of inputs needed and whether sinking or sourcing configuration matches your sensors. For complete technical specifications, contact BluePLC Industrial. Our team can help you select the right base and expansion modules for your application, ensuring compatibility and fast delivery.