The Allen-Bradley 1756-WS is a high-performance weigh scale module engineered for integration into the ControlLogix platform. Developed in partnership with Hardy Process Solutions, this module enables the direct interface of industrial load cells and scale platforms to the ControlLogix backplane. By eliminating the necessity for external weight transmitters or signal conditioning hardware, it simplifies system architecture while maintaining laboratory-level measurement precision for industrial environments.

Features

• Directly connects to industrial load cells, supporting up to four 350-Ohm load cells.
• High-speed processing with an update rate of 50 updates per second for real-time monitoring.
• Exceptional measurement accuracy with a non-linearity rating of 0.0015% of Full Scale.
• Seamless integration with the ControlLogix backplane for streamlined data exchange.
• Designed for demanding industrial processes including batching, filling, vessel weighing, and force measurement.

Technical Specifications

Installation Guidelines

• Ensure power is removed from the ControlLogix chassis before inserting or removing the 1756-WS module.
• Handle the module using proper ESD precautions to prevent damage to sensitive internal circuitry.
• Verify that load cell wiring is properly shielded and routed away from high-voltage AC lines or sources of high EMI to maintain signal integrity.
• Secure the module firmly into the chassis slot using the integrated locking mechanism.
• Ensure the operating environment remains within the specified temperature range of 0 to 60 degC.

FAQ

Q: Does this module require an external transmitter?
A: No, the 1756-WS allows for direct connection of load cells to the ControlLogix backplane, removing the need for external signal conditioning.

Q: How many load cells can be connected to this module?
A: The 1756-WS is a single-channel module that supports the connection of up to four 350-Ohm load cells.