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Allen Bradley PLC 5 1771-KH

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

1771-KH

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The 1771-KH modem interface module from Allen Bradley is designed for the PLC 5 series, ensuring connectivity specifically with PLC-2 family processors. Capable of operating within a defined temperature range and various communication speeds, it facilitates seamless data transfer.

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Ships from Raleigh, NC
2 Year DO Supply Warranty
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 1771-KH

ManufacturerAllen Bradley
Product TypeModem Interface Module
Product LinePLC 5
Part Number1771-KH
Weight3.31 lbs (1.50 kg)
CompatibilityPLC-2 family processors
Communication ProtocolTWR S-70 / S-703
Electrical InterfaceRS-232 compatible
Backplane Draw Current1A
Min. Operating Temperature0°C
Max. Operating Temperature60°C
Min. Storage Temperature-40°C
Max. Storage Temperature85°C
Supported Communication Rate75, 110, 300, 600, 1200, or 2400 bps
Relative Humidity5 to 95% (non-condensing)
Computer Connection Distance50 ft
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The Allen Bradley 1771-KH is a modem interface module specific to the PLC 5 series, tailored primarily for integration with PLC-2 family processors. This module adheres to the TWR S-70 and S-703 communication protocols for reliable data exchange. The electrical interface is RS-232 compatible, allowing straightforward connectivity with various devices.

This module operates efficiently with a backplane draw current of 1A. Temperature operation is supported from 0°C to 60°C, enhancing its adaptability in various environments. For storage, it sustains extreme temperatures, reaching as low as -40°C to a maximum of 85°C. Communication is flexible, accommodating rates of 75, 110, 300, 600, 1200, or 2400 bps, which can be configured depending on the application requirements.

Humidity tolerance is notably broad, allowing operation in environments with relative humidity between 5% and 95%, provided that it remains non-condensing. This characteristic enhances its usability in diverse settings where moisture levels may fluctuate. The 1771-KH module can maintain effective computer connections over distances up to 50 feet, providing ample range for installations.