Product Overview
The Allen-Bradley 1756-OBV8S ControlLogix output module delivers eight isolated sourcing outputs for reliable discrete control. You can use it with any ControlLogix chassis. It provides diagnostic feedback and electronic protection. This module ensures high‑density output in a compact design.
Technical Specifications
The 1756-OBV8S offers eight isolated 24V DC sourcing outputs. Each output supports up to 2A continuous current. The module provides electronic short‑circuit and overload protection. It includes open‑wire and load‑powered diagnostics. The operating temperature range spans 0°C to 60°C. Storage temperature extends from -40°C to 85°C. Relative humidity tolerance reaches 5% to 95% non‑condensing. The module withstands 50g mechanical shock and 5g vibration. It delivers isolation up to 1500V between outputs and backplane. The 1756-OBV8S uses a high‑speed backplane interface for deterministic control. This design minimizes signal delay and improves system response.
Installation and Guidance
- Power down the ControlLogix chassis completely before installation.
- Select an available slot in the chassis for the 1756-OBV8S.
- Align the module’s top and bottom guides with the chassis slot.
- Push the module firmly into the slot until it clicks securely.
- Tighten the module’s top and bottom screws to secure it.
- Connect the 24V DC power supply to the module’s power input.
- Wire each output channel to your field devices using proper gauge wire.
- Verify all connections for correct polarity and tightness.
- Power up the chassis and verify the module’s diagnostic LEDs.
- Configure the module in your ControlLogix programming software.
Packing List & Shipping
- Included Items:
- One Allen-Bradley 1756-OBV8S ControlLogix output module
- One removable terminal block (RTB)
- One keying band for correct slot orientation
- One printed quick‑start guide
- Shipping Methods: FedEx, UPS, DHL





















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