Product Overview
When your ControlLogix system needs reliable TTL-level digital outputs, the Allen-Bradley 1756-OG16 delivers. This digital DC output module provides sixteen 5V DC low/true TTL source outputs in a single slot, making it a practical choice for applications that require direct logic-level signaling to external devices. As part of the trusted ControlLogix series from Rockwell Automation, the 1756-OG16 is built for industrial environments where consistent performance matters.
Key Technical Specifications
The 1756-OG16 operates with an output voltage of 5V DC with TTL source configuration. Its operating voltage range spans 4.5 to 5.5V DC, giving you flexibility across varying supply conditions. Each output point handles a maximum current of 24 milliamps at 60°C, while the module’s total current capacity reaches 384 milliamps at the same temperature. Power dissipation maxes out at 1.5 watts, and the module draws 210 milliamps from the backplane at 5V.
Signal response is fast and predictable. The 1756-OG16 features a load-dependent delay time of 450 microseconds for OFF-to-ON transitions and 700 microseconds for ON-to-OFF transitions. Maximum OFF-state leakage current is just 0.1 milliamps per point, and the ON-state voltage drop is 0.4 volts. These characteristics make the module suitable for time-sensitive control tasks.
Buyer’s Guide: Is the 1756-OG16 Right for Your Application?
Before selecting the 1756-OG16, verify that your application requires TTL-level outputs rather than higher-voltage discrete signals. This module is ideal when interfacing with devices that accept 5V DC logic signals, such as certain solid-state relays, indicator circuits, or low-power control inputs.
Check your chassis compatibility. The 1756-OG16 installs in any standard ControlLogix chassis and uses removable terminal blocks—specifically the 1756-TBNH or 1756-TBSH. Confirm that your existing wiring infrastructure supports the 16-point output configuration.
Consider your environmental conditions. The module operates reliably from 0 to 60°C at 5 to 95% humidity without condensation. With a 30G operational shock rating and 2.0G vibration tolerance at 10-500Hz, it handles demanding industrial settings.
Installation and Integration Notes
Installing the 1756-OG16 follows standard ControlLogix procedures. The module slots directly into the chassis backplane, and the removable terminal blocks simplify wiring and replacement. Ensure proper isolation—the module provides 50 volts continuous isolation voltage.
When integrating into your control architecture, remember that the 1756-OG16 communicates through the ControlLogix backplane. If your system uses fieldbus networks, you may need additional communication modules. Consult your system integrator or contact Oil AutoTech for guidance on compatible configurations.
Maintenance and Reliability
The 1756-OG16 is designed for long-term industrial use. Periodic inspection of terminal connections and verification of output signals help maintain reliable operation. Monitor the module’s thermal performance—power dissipation of 1.5 watts and thermal dissipation of 5.2 BTU/hr at 60°C indicate normal operating conditions.
Keep the installation environment within specified temperature and humidity ranges. While the module carries CE and UL certifications with CISPR 11 Class A emission rating, always follow your facility’s maintenance protocols and the manufacturer’s guidelines for inspection intervals.
Why Source the 1756-OG16 from Oil AutoTech
Oil AutoTech specializes in fast-dispatch spares for oil, gas, and industrial automation applications. We understand that downtime costs money, so we focus on ready-to-ship inventory and quick worldwide delivery. Our team provides hands-on technical selection help to ensure you get the right module for your specific ControlLogix setup. Contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
