Product Overview
The Allen-Bradley 1746-OG16 is a SLC 500 Digital DC Output Module designed for precise 5V DC TTL signal control. This industrial automation module provides sixteen (16) output channels in a single-slot chassis, making it an efficient solution for TTL loads and sink-load displays. With its compact design and reliable performance, the 1746-OG16 integrates seamlessly into existing SLC 500 systems.
Built by Rockwell Automation, the 1746-OG16 ensures dependable switching for industrial applications that require low-voltage logic outputs. Its voltage range of 4.5–5.5V DC and 5V DC sink configuration make it ideal for driving TTL-compatible devices in automated manufacturing environments.
Technical Specifications
The Allen-Bradley 1746-OG16 offers the following key parameters:
| Specification |
Value |
| Manufacturer |
Rockwell Automation |
| Brand |
Allen-Bradley |
| Part Number |
1746-OG16 |
| Series |
SLC 500 |
| Module Type |
Digital DC Output Module |
| Outputs |
16 |
| Voltage Range |
5 Volts DC Sink |
| Backplane Current (5 Volts) |
180 milliamps |
| Current/Output |
0.024 amps |
| Current/Module |
0.384 amps |
| Applications |
TTL Loads, Sink-Load Displays |
| Step Response |
60 ms in, 2.5 ms out |
| Signal Delay, ON |
0.25 mA |
| Signal Delay, OFF |
0.50 mA |
| Off-state voltage |
4.5...5.5V DC |
These specifications ensure the 1746-OG16 delivers consistent performance in demanding industrial settings. The backplane current draw of 180 mA at 5V ensures efficient power usage, while the 0.024 A per-output rating provides ample drive for TTL logic loads.
Industry Applications
The Allen-Bradley 1746-OG16 excels in applications requiring precise TTL output control. Typical use cases include:
- Interfacing with TTL-based displays and indicators in control panels.
- Driving sink-load devices in automated assembly lines.
- Controlling low-voltage logic circuits in material handling systems.
For example, in a bottling plant, the 1746-OG16 can manage the TTL inputs of proximity sensors and actuate display panels that guide operators. Its 16-channel density allows compact wiring, reducing panel space and simplifying maintenance.
Installation Guide
Installing the 1746-OG16 is straightforward. Follow these steps:
- Power down the SLC 500 chassis before insertion.
- Slide the module into an available single slot, ensuring proper alignment with the backplane connector.
- Secure the module using the locking mechanism.
- Connect the external 5VDC power supply to the +VDC terminal.
- Wire the TTL loads to the output channels, observing polarity.
The module requires an external 5VDC supply to energize output circuitry. Ensure the backplane provides 5V power (180 mA) and the external supply is stable within 4.5–5.5V DC.
Maintenance & Reliability
To maximize the lifespan of the Allen-Bradley 1746-OG16, follow these maintenance tips:
- Periodically inspect wiring connections for tightness and corrosion.
- Keep the module within its operating temperature range (-13°F to 140°F) and relative humidity (5–95% non-condensing).
- Check for vibration levels; the module withstands up to 2g at 10–500 Hz and 2.5g at 57–2000 Hz.
- Verify that the enclosure maintains Pollution Degree 2 conditions as defined by EN/IEC 60664-1.
Routine checks prevent unexpected downtime and extend service life, reducing total cost of ownership.
Compatibility & Integration
The 1746-OG16 is part of the Allen-Bradley SLC 500 family, ensuring seamless integration with SLC 500 processors and chassis. It occupies a single slot and communicates over the backplane, requiring no additional communication modules. The module's inverted logic can be handled in programming with a NOT instruction to achieve desired output states.
Data table monitoring allows real-time channel status, force activation, and flexible viewing in binary, decimal, octal, or hexadecimal formats—ideal for troubleshooting and process optimization.
Buying Guide
When purchasing the Allen-Bradley 1746-OG16, verify the following:
- Confirm the part number matches your system requirements.
- Check the module's condition (new, refurbished, or used) and warranty.
- Ensure you have the required external 5VDC power supply.
PLC Source PRO offers genuine Allen-Bradley 1746-OG16 modules with fast shipping and reliable support. Contact our team for availability and pricing.