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Allen Bradley ControlLogix 1756-WS

Product image is representative; revision or series may vary. Contact us to request a specific version.

1756-WS

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The 1756-WS weigh scale module from Allen Bradley's ControlLogix series is designed for precise measurement applications. This module features a single channel with a conversion rate of 50 updates per second and minimal non-linearity at 0.0015% of full scale, making it suitable for accurate weighing tasks.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1756-WS

ManufacturerAllen Bradley
Product TypeWeigh Scale Module
Product LineControlLogix
Part Number1756-WS
Weight15.00 lbs (6.80 kg)
Number of ChannelsSingle Channel
Conversion Rate50 updates per second
Non-Linearity0.0015% of Full Scale
Common-Mode Voltage Range2.5 VDC max.
Backplane Input Voltage5 VDC and 24 VDC
Operating Temperature Range0 to 60°C
Storage Temperature Range-40 to 85°C
Humidity Range0 to 90% (non-condensing)
ApprovalsCE Approval
Digital VoltmeterAccuracy +/- 2% of full scale Resolution
Load Cell5 VDC +/- 1.15 W maximum
Backplane Current Load<1 Amp at 5 VDC
Backplane Power Load< 5W at 5 VDC and < .3W at 24 VDC with 4-350 Ohm Load Cells
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The 1756-WS module from Allen Bradley is a specialized weigh scale module within the ControlLogix series, engineered for robust weighing applications. It processes data via a single channel and features an impressive update rate of 50 times per second. It boasts a high accuracy level, making it efficient for precise measurements, with only 0.0015% non-linearity of full scale, thereby ensuring reliable performance over a variety of conditions.

This module can handle a common-mode voltage up to 2.5 VDC. It is compatible with backplane input voltages of both 5 VDC and 24 VDC, catering to diverse system requirements. The operational temperature range for this device spans from 0°C to 60°C, while storage conditions can accommodate extremes from -40°C to 85°C. Furthermore, it is built to function optimally in humidity levels ranging from 0 to 90%, provided that no condensation is present.

The 1756-WS has CE approval, indicating compliance with relevant European standards. Its digital voltmeter presents an accuracy of +/- 2% of full scale resolution, which enhances its reliability. The load cell requirement is 5 VDC, with a maximum power consumption of +/- 1.15 Watts.

For power management, the backplane current load remains below 1 amp at 5 VDC, while the power load at 5 VDC is less than 5 watts. When utilizing 4-350 Ohm load cells at a 24 VDC input, the power load remains below 0.3 watts, optimizing energy efficiency during operation.

Revision Part #Also known as
1756-WS Ser A1756-WS/A, Series A, Rev A
1756-WS Ser B1756-WS/B, Series B, Rev B
1756-WS Ser C1756-WS/C, Series C, Rev C
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