Rockwell Automation Publication 2080-UM002N-EN-E - November 2022
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Chapter 10 Use the High-Speed Counter and Programmable Limit Switch
The PE (User Interrupt Pending) is a status flag that represents an interrupt is pending. This
status bit can be monitored or used for logic purposes in the control program if you need to
determine when a subroutine cannot be executed immediately. This bit is maintained by the
controller and is set and cleared automatically.
The LS (User Interrupt Lost) is a status flag that represents an interrupt has been lost. The
controller can process 1 active and maintain up to 1 pending user interrupt conditions before it
sets the lost bit.
This bit is set by the controller. It is up to the control program to utilize, track the lost condition
if necessary.
User Interrupt Lost (HSC0.LS)
Description
Data Format
HSC Modes
(1)
(1) For Mode descriptions, see
Count Down (HSCSTS.CountDownFlag) on page 211
User Program Access
HSC0.LS
bit
0…9
read/write