The Allen Bradley 1771-OQ16 is a PLC-5 series high-density DC digital output module designed for the 1771 I/O platform. It provides 16 individually isolated output channels for controlling DC field devices such as solenoids, relays, pilot lights, and industrial actuators.
This module is engineered for robust industrial switching performance, high current capability, and reliable operation in demanding automation environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Catalog Number | 1771-OQ16 |
| Module Type | DC Digital Output Module |
| System Family | PLC-5 / 1771 I/O |
| Output Channels | 16 outputs |
| Output Voltage Range | 10–32V DC |
| Nominal Voltage | 24V DC systems |
| Output Type | Isolated DC switching outputs |
| Continuous Current per Point | up to 2.0 A |
| Maximum Module Current | up to 32 A |
| Backplane Current Draw | ~400 mA @ 5 V DC |
| Signal Delay (OFF/ON) | ~45–50 ms typical |
| Isolation | Channel-to-channel isolation with optical coupling |
| Protection Features | Short-circuit and overload protection (design dependent) |
| Status Indication | LED per channel + diagnostic indicators |
| Wiring Arm | 1771-WH |
| Mounting Type | 1771 chassis slot (1-slot width) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Weight | ~0.97 kg |
| Dimensions (L×W×H) | 327 mm × 235 mm × 51 mm |
System Role Overview
The 1771-OQ16 module is designed for industrial-grade DC output control in PLC-5 automation systems. It converts PLC logic commands into high-current DC switching signals for field devices.
Core functions include:
- Solenoid and valve actuation control
- Industrial relay and contactor driving
- Indicator and alarm output control
- Process automation signal switching
- Machine-level discrete output execution
It is commonly used where high channel density and strong load-driving capability are required in legacy PLC-5 installations.
Recommended Related Modules
| Model | Function |
|---|---|
| 1771-OBD | Standard DC output module |
| 1771-OAD | AC output module |
| 1771-IBD | DC input module |
| 1771-IBN | High-density DC input module |
| 1771-IFE | Analog input module |
| 1771-ASB | Remote I/O adapter |
Popular Allen Bradley PLC-5 Modules
| Model | Function |
|---|---|
| 1785-L40B | PLC-5 processor |
| 1771-A4B | 16-slot I/O chassis |
| 1771-DMC | Data Highway communication module |
| 1771-SN | I/O scanner module |
| 1771-ALX | Local I/O adapter module |
