Allen-Bradley 1790-T0V16X: High-Density 16-Channel Output Module

Add significant control capacity to your DeviceNet system. The Allen-Bradley 1790-T0V16X provides sixteen sinking digital outputs in one compact module. It delivers reliable 24V DC switching for lights, relays, and solenoids. This module is perfect for applications requiring multiple control points from a single network node.

Detailed Technical Specifications

• Product Model: Allen-Bradley 1790-T0V16X (1790 Series Compact I/O).
• Output Configuration: 16 sinking (NPN) outputs, non-isolated.
• Current Rating: 0.5A per point, 4.0A maximum per common group.
• Voltage Range: Operates with 10-28.8V DC field power (24V DC nominal).
• Switching Speed: Turn-on delay ≤0.5 ms, turn-off delay ≤1.0 ms.
• Power Dissipation: Low consumption, approx. 6 mA per active output point.
• Isolation: 1250V AC RMS optical isolation between field outputs and internal logic.
• Communication: DeviceNet network interface for remote control and status monitoring.

Installation & Wiring Information

• Wiring Method: Screw terminal block (M3.0) for secure and flexible field connections.
• Torque Specification: Tighten terminal screws to a maximum of 7 lb-in (0.79 Nm).
• Conductor Type: Use copper or copper-clad aluminum conductors only.
• Common Groups: Outputs arranged as 8 points per common, with 2 separate common groups total.
• Mounting: Standard 35mm DIN rail mounting for easy panel integration.
• Visual Diagnostics: Sixteen individual green LEDs provide clear output status indication.

Packaging & Support Details

• Package includes one 1790-T0V16X output module, ready for installation.
• This product is covered by a standard 12-month warranty for peace of mind.
• We ship worldwide using reliable carriers including FedEx, UPS, and DHL.

Expert FAQs

• What types of loads are best suited for the 0.5A output rating?
  This rating is ideal for pilot lights, small relay coils (24V DC), solenoid valves, and other control devices under 12W. For larger loads, use these outputs to control intermediate contactors.
• How do I properly size the field power supply for this module?
  Calculate based on all outputs active: (16 outputs × 0.5A) = 8A maximum theoretical. In practice, use a 24V DC power supply rated at least 120% of your expected simultaneous load current, plus the module's own ~100mA consumption.
• What is the significance of the "8 points/2 COM" grouping?
  It means the sixteen outputs are divided into two banks of eight. Each bank shares a common wire. This allows you to use two different field power sources if needed, providing wiring flexibility and helping manage total current per common.
• Can I use this module to control AC loads?
  No. This is a DC sinking output module only. The outputs are designed for 10-28.8V DC operation. Attempting to switch AC voltage will not work correctly and may damage the module.
• Why is optical isolation important in an output module?
  Isolation (1250V AC here) protects the sensitive DeviceNet network electronics from voltage spikes, noise, and ground loop problems that can occur in the field wiring. This dramatically improves system reliability in industrial environments.

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