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The Allen-Bradley 1746-OG16 is a 16-point digital output module designed for the SLC 500 PLC system. It is used to provide high-speed logic-level output signals for industrial control applications such as driving interface relays, pilot devices, communication signal switching, and control circuit actuation.
Unlike high-current power output modules, the 1746-OG16 is typically used for signal-level switching and interfacing tasks where fast response and electrical isolation are required rather than heavy load driving.
It is commonly installed in PLC racks to expand the number of available digital output points in automation systems.
The brand is widely used in industrial control environments due to its stability, long lifecycle, and strong compatibility with PLC-based automation systems.
The SLC 500 system is a modular PLC architecture. The 1746-OG16 is designed for high-density digital signal output expansion in this platform.
| Parameter | Value |
|---|---|
| Model | 1746-OG16 |
| Module Type | Digital Output Module |
| Series | SLC 500 |
| Number of Outputs | 16 |
| Output Type | Logic-level digital output |
| Output Voltage | 5V DC logic level |
| Output Current per Point | Low current (signal-level, typically mA range) |
| Output Current per Module | Limited (backplane dependent) |
| Switching Device | Solid-state logic driver |
| Turn-On Time | <1 ms |
| Turn-Off Time | <1 ms |
| Backplane Current (5V) | ~135–200 mA |
| Backplane Current (24V) | 0 mA |
| Isolation Voltage | ~1500 V AC |
| Output Function | Signal interface / logic switching |
| Load Type | PLC signal-level loads only |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5–95% non-condensing |
| Dimensions (mm) | 145 × 35 × 140 |
| Weight (kg) | ~0.30 – 0.45 kg |
Sixteen output channels in a compact module improve system integration efficiency.
Sub-millisecond switching supports real-time control logic execution.
Designed specifically for SLC 500 rack systems.
Provides protection between PLC backplane and field circuits.
Suitable for continuous industrial automation environments.
| Model | Type | Channels | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746-OB8 | DC Output | 8 | 24V DC | 145 × 35 × 140 | 0.39 |
| 1746-OB16 | DC Output | 16 | 24V DC | 145 × 35 × 140 | 0.34 |
| 1746-OB16E | DC Output | 16 | Sourcing | 145 × 35 × 140 | 0.35 |
| 1746-OBP16 | Protected DC Output | 16 | 24V DC | 145 × 35 × 140 | 0.40 |
| 1746-OW16 | Relay Output | 16 | AC/DC Relay | 145 × 35 × 140 | 0.50 |
| Model | Type | Channels | Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1756-L73 | Controller | — | 5V DC | 150 × 140 × 130 | 0.36 |
| 1769-L36ERM | Compact Controller | — | 24V DC | 120 × 90 × 70 | 0.30 |
| 1734-IE8C | Analog Input | 8 | 4–20 mA | 75 × 12 × 60 | 0.16 |
| 1769-OF8C | Analog Output | 8 | 0–10 V | 118 × 87 × 35 | 0.30 |
| 1756-EN2T | Ethernet Module | — | 5V DC | 150 × 140 × 130 | 0.32 |