Allen-Bradley Micro800 General Instructions Manual page 310

Programmable controllers

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High-Speed Counter (HSC) instructions

Micro800 controller support for HSC

All Micro830 and Micro850 controllers, except for 2080-LCxx-AWB, support up

to six HSC inputs. HSC functionality is implemented in Micro800 controllers

using high-speed counter hardware (embedded inputs in the controller), and the

HSC instruction in the application. The HSC instruction configures the high-

speed counter hardware and updates the image accumulator.

The HSC function can only be used with the controller's embedded I/O. It cannot be used with expansion

I/O modules.

Rockwell Automation Publication 2080-RM001D-EN-E - February 2015