Allen-Bradley 1771-VHSC Very High Speed Counter Module — very-high-speed counter, 4 inputs / 8 outputs. The Allen-Bradley 1771-VHSC is a very-high-speed counter combination module for the 1771 PLC-5 I/O system. It combines 4 input signals and 8 output signals across 12 channels. It performs high-speed counting and provides fast outputs for time-critical control from the PLC-5 processor. It is a discontinued module supported through repair and replacement..
MPN / SKU: 1771-VHSC
1771-VHSC Applications
The 1771-VHSC handles high-speed pulse counting from encoders and fast sensors in a PLC-5 system, with integrated outputs for rapid on/off control. It mounts in a 1771 I/O chassis and is configured through the processor's data table and the module user manual (1771-UM666). It is applied where processor scan rates are too slow for direct counting, such as positioning and rate measurement. It provides 4 inputs and 8 outputs across 12 channels. Confirm counting mode and output assignments before use.
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Order before 2 PM (Sun–Thu). Next-day delivery to Dubai, Sharjah, Abu Dhabi. 2–4 days to other emirates.
7-day return window
Sealed, unused items can be returned within 7 days for full refund or replacement.
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