1771-VHSC
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Product Conditions
Product Conditions
Surplus: Surplus units show no signs of installation or having been used previously. These units are in the original packaging, which may have been opened.
Used: Used units have been previously used and are inspected, cleaned and tested.
All units come with a 1 Year Replace Industrial Warranty.
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Product Conditions
Replace Industrial, LLC is not affiliated with any of the manufacturers listed on this website. All products are sourced & verified through the industrial surplus market and through other independent supply chains. We do not convey any manufacturer warranty with the product. Each product sold comes with a 2 Year Replace Industrial Warranty, unless specified otherwise. This warranty conveys solely through Replace Industrial, LLC. and is completely unaffiliated with any manufacturer warranty. The terms of our warranty can be found here.
Surplus: This unit is sourced through the industrial market outside of the manufacturer and has been independently verified to not have been used operationally previously. These units are in the original packaging, but the packaging & unit may show signs of shelf wear.
Used: This unit may have been previously used and show signs of wear. The unit has been independently verified and is guaranteed with a 1 Year Replace Automation Warranty. The unit has been sourced through independent supply chains in the industrial markets.
Firmware: Replace Industrial, LLC sells hardware only and does not sell firmware and makes no representation as to what firmware may or may not be present on the hardware. We do not obtain or provide software for customers.
Allen-Bradley 1771-VHSC
The Allen-Bradley 1771-VHSC is a Very High-Speed Counter (VHSC) module designed for use in PLC-5 systems. Ideal for applications requiring precise and rapid counting, such as totalizing, position tracking, and encoder feedback, this module supports a wide range of industrial automation tasks. It features four input channels that can be configured independently for encoder mode, counter mode, period/rate mode, or continuous/rate mode. Additionally, the module provides eight 5–24V DC current-sourcing outputs, enabling responsive control based on high-speed input conditions. Engineered for use in demanding environments, the 1771-VHSC offers reliable performance in applications where standard counter modules may fall short.
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1771-VHSC |
| Product Type | Very High-Speed Counter Module |
| Series | 1771 / PLC-5 |
| Input Channels | 4 |
| Input Modes | Encoder, Counter, Period/Rate, Continuous/Rate |
| Output Channels | 8 |
| Output Type | Current Sourcing (5–24V DC) |
| Typical Applications | Totalizing, Position Sensing, Encoder Integration |
| Mounting | 1771 I/O Chassis |
| Status | Discontinued / Legacy Support |
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